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109-94-4

Basic Information
CAS No.: 109-94-4
Name: Ethyl formate
Molecular Structure:
Molecular Structure of 109-94-4 (Ethyl formate)
Formula: C3H6O2
Molecular Weight: 74.09
Synonyms: Areginal;Ethyl methanoate;Methanoic acid ethyl ester;NSC 406578;NSC8828;Ethyl ester of formic acid;Ethylformiat;Formic acid, ethylester;
EINECS: 203-721-0
Density: 0.906 g/cm3
Melting Point: -80 °C(lit.)
Boiling Point: 54.7 °C at 760 mmHg
Flash Point: 7°F
Solubility: soluble in water
Appearance: colourless liquid with an aromatic odour
Hazard Symbols: FlammableF,HarmfulXn
Risk Codes: 11-20/22-36/37
Safety: 9-16-24-26-33
Transport Information: UN 1190 3/PG 2
PSA: 26.30000
LogP: 0.81520
Synthetic route
64-18-6

formic acid

454-31-9

ethyl difluoroacetate

A

381-73-7

Difluoroacetic acid

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
sulfuric acid at 70℃; Product distribution / selectivity;A 96%
B n/a
539-88-8

4-oxopentanoic acid ethyl ester

122-51-0

orthoformic acid triethyl ester

A

92557-39-6

ethyl 4,4-diethoxypentanoate

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With toluene-4-sulfonic acid In ethanol at 145℃; ketalization;A 94%
B n/a
64-17-5

ethanol

150760-95-5

formic acid cyanomethyl ester

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With 1H-imidazole for 24h; Ambient temperature;93%
With 1H-imidazole Yield given;
122-51-0

orthoformic acid triethyl ester

A

74-96-4

ethyl bromide

B

1825-62-3

ethyl trimethylsilyl ether

C

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With chloro-trimethyl-silane; sodium bromide for 2h; Product distribution; Heating; Me3SiBr generated in situ;A n/a
B n/a
C 92%
64-17-5

ethanol

39689-37-7

sodium salt of β-mercaptonaphthalene

A

32551-87-4

ethyl 2-naphthyl sulfide

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With carbon monoxide at 150℃; under 75006 Torr; for 21h;A 90%
B n/a
109-92-2

ethyl vinyl ether

A

50-00-0

formaldehyd

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With ozone at 24.85℃; under 100 Torr; for 0.416667h; Kinetics;A n/a
B 86%
With dihydrogen peroxide at 98.85℃; under 100 Torr; for 4h; Kinetics; Further Variations:; Temperatures; Pressures; Reagents; Irradiation;A n/a
B 83%
With ozone at 24.84℃; under 760.051 Torr; Kinetics; Concentration; Time; Gas phase;A 15 %Chromat.
B 80 %Chromat.
79-22-1

methyl chloroformate

82833-74-7

dibutyl (diethoxymethyl)phosphine

A

75-00-3

chloroethane

B

112499-32-8

dibutyl(methoxycarbonyl)phosphine

C

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
In diethyl ether for 4h; Heating;A n/a
B 85%
C n/a
85233-91-6

tris(2-diphenylphosphanylethyl)aminerhodium(I) hydride

623-49-4

ethyl cyanoformate

118681-53-1

N(CH2CH2P(C6H5)2)3RhCN

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
In tetrahydrofuran soln. of formate added to stirred suspn. of complex (N2), gently warmed to 40°C (1 h), cooled to room temp.; mixt. of ethanol/n-hexane (1:1) added, concd. (brisk current of N2), sepd., collected on sintered glass frits, washed (EtOH, pentane), dried (N2);A 71%
B 85%
78-39-7

Triethyl orthoacetate

107-18-6

allyl alcohol

A

64-17-5

ethanol

B

1968-40-7

ethyl 4-pentenoate

C

C9H18O3

D

141-78-6

ethyl acetate

E

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With formic acid at 150℃; for 16h; Reagent/catalyst; Johnson-Claisen Rearrangement; Autoclave;A n/a
B 83%
C n/a
D n/a
E n/a
64-18-6

formic acid

866-23-9

diethyl (trichloromethyl)phosphonate

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
at 120℃; for 24h;82%
67-47-0

5-hydroxymethyl-2-furfuraldehyde

64-17-5

ethanol

A

1917-65-3

5-(ethoxymethyl)furfural

B

539-88-8

4-oxopentanoic acid ethyl ester

C

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With sulfuric acid at 75℃; for 24h; Reagent/catalyst; Temperature; Sealed tube;A 81%
B 16%
C n/a
4885-02-3

Dichloromethyl methyl ether

65600-72-8

ethyl P-(diethoxymethyl)phosphonite

A

589-57-1

diethyl phosphorylchloridite

B

75-00-3

chloroethane

C

107-31-3

Methyl formate

D

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
at 60 - 70℃; Product distribution; argon atmosphere;A 80%
B n/a
C n/a
D n/a
68-12-2, 33513-42-7

N,N-dimethyl-formamide

6065-82-3

Ethyl diethoxyacetate

A

34640-92-1

2,2-diethoxy-N,N-dimethylacetamide

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With lithium methanolate In methanol at 80℃; for 10h; Product distribution / selectivity;A 80%
B n/a
109786-30-3

tris(2-diphenylphosphanylethyl)phosphanerhodium(I) hydride

623-49-4

ethyl cyanoformate

118681-54-2

RhCN(tris(2-(diphenylphosphino)ethyl)phosphine)

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
In tetrahydrofuran neat formate pipetted into soln. of complex, heated at ca. 40°C (20-30 min), cooled to room temp.; ethanol/n-hexane 1:1 added, concd. (N2), crystals collected on sintered glass frits, washed (EtOH, pentane), dried (N2);A 70%
B 80%
80592-18-3

3,4-methylenedioxyphenyl formate

A

533-31-3

Sesamol

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With ethanol; sodium hydroxide at 82 - 96℃; for 4.5h; Reflux; elimination of ethyl formate;A 79%
B n/a
4885-02-3

Dichloromethyl methyl ether

95987-39-6

(diethoxymethyl)diisopropylphosphine oxide

A

75-00-3

chloroethane

B

107-31-3

Methyl formate

C

40244-90-4

Chlorodiisopropylphosphane

D

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
at 60℃; for 1h; Product distribution; argon atmosphere;A n/a
B n/a
C 76%
D n/a
16972-33-1

pentacarbonylhydridomanganese

Et-oxycarbonylcobalt tetracarbonyl

A

35646-82-3

(CO)5MnCo(CO)4

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With carbon monoxide In n-heptane Kinetics; heptane, 25°C, CO atmosphere, 24 h; evapd. in vac. at 0°C, crystd. at -79°C;A 71%
B n/a
64-18-6

formic acid

64-17-5

ethanol

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With phosphorus pentoxide; copper(II) sulfate; sodium sulfate for 20h; Ambient temperature;70%
With Ag2(4,4'-bipy)2(O3SCH2CH2SO3)*4H2O-based polymer Reflux;70%
With sulfuric acid; mercury(II) sulfate unter Durchleiten von Acetylen;
1561-49-5

dicyclohexyl peroxydicarbonate

122-51-0

orthoformic acid triethyl ester

A

25604-46-0

diethoxycyclohexyloxymethane

B

109-94-4

formic acid ethyl ester

C

105-58-8

Diethyl carbonate

Conditions
ConditionsYield
at 60℃; for 2h;A 70%
B n/a
C n/a
122-51-0

orthoformic acid triethyl ester

A

25604-46-0

diethoxycyclohexyloxymethane

B

109-94-4

formic acid ethyl ester

C

105-58-8

Diethyl carbonate

Conditions
ConditionsYield
With dicyclohexyl peroxydicarbonate at 60℃; for 2h;A 70%
B n/a
C n/a
With dicyclohexyl peroxydicarbonate at 60℃; for 4h;A 0.56 mmol
B 0.37 mmol
C 0.17 mmol
64-17-5

ethanol

A

50-00-0

formaldehyd

B

93-89-0

benzoic acid ethyl ester

C

100-52-7

benzaldehyde

D

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
Stage #1: styrene; ethanol With ozone
Stage #2: at 90 - 100℃; Further byproducts given;
A 6%
B 63.4%
C 6.3%
D 20.4%
67-47-0

5-hydroxymethyl-2-furfuraldehyde

64-17-5

ethanol

A

539-88-8

4-oxopentanoic acid ethyl ester

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With sulfuric acid at 120℃; for 30h; Reagent/catalyst; Sealed tube;A 62%
B n/a
506-96-7

Acetyl bromide

65600-72-8

ethyl P-(diethoxymethyl)phosphonite

A

74-96-4

ethyl bromide

B

109-94-4

formic acid ethyl ester

C

919-19-7

diethyl acetylphosphonate

Conditions
ConditionsYield
for 1h; Heating; argon atmosphere;A n/a
B n/a
C 61%
116779-75-0

bromoethyl ethyl ether

122-51-0

orthoformic acid triethyl ester

A

105-57-7

diethyl acetal

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
at 25℃;A 61%
B n/a
617-35-6

2-oxo-propionic acid ethyl ester

122-51-0

orthoformic acid triethyl ester

A

7476-20-2

ethyl 2,2-diethoxypropionate

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With toluene-4-sulfonic acid In ethanolA 61%
B n/a
7081-78-9

1-chloroethyl ethyl ether

122-51-0

orthoformic acid triethyl ester

A

105-57-7

diethyl acetal

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
for 12h;A 59%
B n/a
64-17-5

ethanol

50-99-7

D-glucose

A

64-18-6

formic acid

B

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
With H8[PMo7V5O40]; oxygen In water at 90℃; under 15001.5 Torr; for 24h; Autoclave;A 56%
B 40%
64-17-5

ethanol

67-66-3

chloroform

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
at 20℃; for 6h; UV-irradiation;55%
64-18-6

formic acid

623-81-4

diethyl sulphite

109-94-4

formic acid ethyl ester

Conditions
ConditionsYield
sulfuric acid Heating;53%
61-54-1

tryptamine

109-94-4

formic acid ethyl ester

6502-82-5

Nb-formyltryptamine

Conditions
ConditionsYield
for 24h; Reflux;100%
for 6h; Reflux;100%
With triethylamine In methanol at 100℃; for 16h; Inert atmosphere;97%
78-81-9

isobutylamine

109-94-4

formic acid ethyl ester

6281-96-5

N-isobutylformamide

Conditions
ConditionsYield
for 12h; Reflux; Inert atmosphere;100%
140-29-4

phenylacetonitrile

109-94-4

formic acid ethyl ester

5841-70-3

phenyl(formyl)acetonitrile

Conditions
ConditionsYield
With sodium hydride100%
With sodium hydride In tetrahydrofuran at 50℃; for 0.333333h;86%
With sodium In ethanol at 0 - 40℃;78.7%
141-43-5

ethanolamine

109-94-4

formic acid ethyl ester

693-06-1

(2-hydroxyethyl)-formamide

Conditions
ConditionsYield
Stage #1: ethanolamine With sodium ethanolate at 20℃; for 0.5h;
Stage #2: formic acid ethyl ester In ethanol for 1h; Heating; Further stages.;
100%
at 10 - 20℃; for 12h;100%
99%
105-39-5

chloroacetic acid ethyl ester

109-94-4

formic acid ethyl ester

33142-21-1

ethyl 2-chloro-3-oxopropanoate

Conditions
ConditionsYield
With sodium ethanolate In tert-butyl methyl ether at 0 - 20℃; Inert atmosphere; Large scale;100%
With sodium ethanolate In tert-butyl methyl ether at 0 - 20℃; Inert atmosphere; Large scale;100%
With potassium tert-butylate In tetrahydrofuran at 0 - 20℃; for 16h; Inert atmosphere;95%
618-36-0

rac-methylbenzylamine

109-94-4

formic acid ethyl ester

6948-01-2

N-formyl-α-methylbenzylamine

Conditions
ConditionsYield
for 8h; Reflux;100%
With Novozyme 435 CALB In tetrahydrofuran at 20℃; Green chemistry; Enzymatic reaction;94%
With 1-(3-sulfopropyl)pyridinium phosphotungstate In neat (no solvent) at 70℃; for 15h; Microwave irradiation; Sealed tube; Inert atmosphere;81%
156-87-6

propan-1-ol-3-amine

109-94-4

formic acid ethyl ester

49807-74-1

3-(N-formylamino)propan-1-ol

Conditions
ConditionsYield
100%
Reflux;100%
at 50℃; for 2.25h; Cooling with ice;95%
124-22-1

n-Dodecylamine

109-94-4

formic acid ethyl ester

7402-57-5

N-(dodecyl)formamide

Conditions
ConditionsYield
for 20h; Inert atmosphere; Reflux;100%
109-94-4

formic acid ethyl ester

123-25-1

succinic acid diethyl ester

5472-38-8

diethyl 2-formylbutanedioate

Conditions
ConditionsYield
With sodium In diethyl ether at 40℃; for 5h;100%
With sodium In diethyl ether at 40℃; for 5h;100%
With sodium hydride In toluene at 20℃; for 16h; Reagent/catalyst;95.1%
107-11-9

1-amino-2-propene

109-94-4

formic acid ethyl ester

16250-37-6

N-allylformamide

Conditions
ConditionsYield
at 60℃; for 6h;100%
for 1h; Heating;86%
at 0 - 20℃; Inert atmosphere;80%
5162-44-7

1-bromo-4-butene

109-94-4

formic acid ethyl ester

94427-72-2

1,8-nonadiene-5-ol

Conditions
ConditionsYield
Stage #1: 1-bromo-4-butene With magnesium In tetrahydrofuran at 0 - 20℃; Inert atmosphere;
Stage #2: formic acid ethyl ester In tetrahydrofuran at 0 - 20℃; Inert atmosphere;
100%
Stage #1: 1-bromo-4-butene With iodine; magnesium In tetrahydrofuran at 20℃; for 0.5h; Inert atmosphere;
Stage #2: formic acid ethyl ester In tetrahydrofuran at 0 - 20℃; for 3h; Inert atmosphere;
98%
Stage #1: 1-bromo-4-butene With iodine; magnesium In tetrahydrofuran at 20℃; Inert atmosphere;
Stage #2: formic acid ethyl ester In tetrahydrofuran at 0 - 20℃; Inert atmosphere;
94%
2516-34-9

cyclobutylamine

109-94-4

formic acid ethyl ester

87055-64-9

N-cyclobutylformamide

Conditions
ConditionsYield
for 4h; Heating;100%
With Novozyme 435 CALB In tetrahydrofuran at 20℃; Green chemistry; Enzymatic reaction;98%
With toluene-4-sulfonic acid
2627-86-3

(S)-1-phenyl-ethylamine

109-94-4

formic acid ethyl ester

19145-06-3

(S)-N-formyl-1-phenylethylamine

Conditions
ConditionsYield
In toluene for 15h; Heating;100%
With Novozyme 435 CALB In tetrahydrofuran at 20℃; Green chemistry; Enzymatic reaction;95%
3886-69-9

(R)-1-phenyl-ethyl-amine

109-94-4

formic acid ethyl ester

6948-01-2, 19145-06-3, 31502-34-8, 42412-77-1

(R)-(+)-α-methylbenzyl formamide

Conditions
ConditionsYield
for 8h; Reflux;100%
With amberlyst 15 In tetrahydrofuran for 21h; Reflux; Inert atmosphere;99%
With Novozyme 435 CALB In tetrahydrofuran at 20℃; Green chemistry; Enzymatic reaction;92%
96-48-0

4-butanolide

109-94-4

formic acid ethyl ester

51270-64-5, 54211-97-1, 93698-26-1

sodium salt of (Z)-3-(hydroxymethylene)dihydro-2(3H)-furanone

Conditions
ConditionsYield
With sodium hydride100%
With sodium In diethyl ether at -20 - -15℃; for 5h;
96-48-0

4-butanolide

109-94-4

formic acid ethyl ester

54211-97-1

sodium salt of (E)-3-(hydroxymethylene)dihydro-2(3H)-furanone

Conditions
ConditionsYield
With sodium hydride100%
With ethanol; sodium hydride In 1,2-dimethoxyethane at 40℃; for 22h; cross-Claisen acylation;97%
With sodium methylate In diethyl ether for 12h;69%
With sodium hydroxide In 1,2-dimethoxyethane at 60℃; for 16h;66%
542-28-9

3,4,5,6-tetrahydro-2H-pyran-2-one

109-94-4

formic acid ethyl ester

Sodium; [2-oxo-dihydro-pyran-(3Z)-ylidene]-methanolate

Conditions
ConditionsYield
With sodium hydride100%
3731-51-9

(2-aminomethylpyridine)

109-94-4

formic acid ethyl ester

56625-03-7

N-((pyridin-2-yl)methyl)formamide

Conditions
ConditionsYield
for 1.5h; Reflux;100%
at 25℃; for 8h;
108-94-1

cyclohexanone

109-94-4

formic acid ethyl ester

823-45-0

2-(hydroxymethylene)cyclohexanone

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran; paraffin oil at 10 - 20℃;100%
With sodium methylate In toluene for 24h;94%
With ethanol; sodium hydride In diethyl ether; mineral oil at 20℃;92%
120-20-7

2-(3,4-dimethoxyphenyl)-ethylamine

109-94-4

formic acid ethyl ester

14301-36-1

N-[2-(3,4-dimethoxyphenyl)ethyl]formamide

Conditions
ConditionsYield
at 70℃; for 20h;100%
at 70℃;100%
Reflux;99%
1003-03-8

Cyclopentamine

109-94-4

formic acid ethyl ester

41215-40-1

N-cyclopentylcarboxamide

Conditions
ConditionsYield
for 4h; Heating;100%
for 3h; Heating;97%
Heating;
Reflux;
In ethanol at 90℃; for 9h;
765-30-0

Cyclopropylamine

109-94-4

formic acid ethyl ester

58644-54-5

N-cyclopropylformamide

Conditions
ConditionsYield
for 4h; Heating;100%
at 50℃; for 5h;84%
With sodium carbonate In ethanol for 20h; Ambient temperature;59%
2039-67-0

2-(3-methoxyphenyl)-1-ethanamine

109-94-4

formic acid ethyl ester

110339-54-3

N-[2-(3-methoxy-phenyl)-ethyl]-formamide

Conditions
ConditionsYield
In toluene for 6h; Heating;100%
23356-96-9

(S)-1-Pyrrolidin-2-yl-methanol

109-94-4

formic acid ethyl ester

55456-46-7

(S)-(-)-1-Formyl-2-(hydroxymethyl)pyrrolidine

Conditions
ConditionsYield
at 50℃;100%
1450-72-2

5-methyl-2-hydroxyacetophenone

109-94-4

formic acid ethyl ester

90617-36-0

2,3-dihydro-2-hydroxy-6-methyl-1-benzopyran-4-one

Conditions
ConditionsYield
With sodium methylate In tetrahydrofuran at 20℃; for 0.5h;100%
With sodium In diethyl ether Heating;74%
22231-61-4

2-[4-(benzyloxy)-3-methoxyphenyl]ethylamine

109-94-4

formic acid ethyl ester

55803-41-3

N-formyl-2-[3-methoxy-4-(benzyloxy)phenyl]ethylamine

Conditions
ConditionsYield
In tetrahydrofuran for 12h; Reflux;100%
for 12h; Inert atmosphere; Reflux;95%
for 1h; Heating;78%
at 70 - 80℃; for 8h;50.72%
2026-48-4

(S)-valinol

109-94-4

formic acid ethyl ester

89876-66-4

(S)-N-[1-(hydroxymethyl)-2-methylpropyl]formamide

Conditions
ConditionsYield
for 4h; Heating;100%
Reflux;99%
for 2h; Heating;95%
112-53-8

1-dodecyl alcohol

109-94-4

formic acid ethyl ester

28303-42-6

1-dodecanyl formate

Conditions
ConditionsYield
cerium (IV) sulfate; silica gel for 1h; Heating;100%
114049-99-9

1-dimethylamino-butan-2-one

109-94-4

formic acid ethyl ester

Sodium; (Z)-4-dimethylamino-2-methyl-3-oxo-but-1-en-1-olate

Conditions
ConditionsYield
With sodium hydride In toluene100%
459-72-3

ethyl 2-fluoroacetate

109-94-4

formic acid ethyl ester

1652-39-7

(1-ethoxy-2-fluoro-1,3-dioxopropan-2-yl) sodium

Conditions
ConditionsYield
With sodium hydride In diethyl ether; ethanol; mineral oil at 20℃; Inert atmosphere; Cooling with ice;100%
With sodium ethanolate In tetrahydrofuran at 0 - 20℃;94.7%
With sodium hydride In diethyl ether for 2h; Ambient temperature;
With ethanol; sodium hydride In diethyl ether; mineral oil at 20℃; Inert atmosphere; Cooling with ice;
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  • Ethyl formate 109-94-4

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    109-94-4

    Ethyl formate 109-94-4

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 0.0-0.0/Kilogram

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    Business Type:Manufacturers

    Tel:+86-0371-87507775

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 2.0-3.0/Kilogram

    Ethyl formate Product Name: Ethyl formate Synonyms: ethyl methanoate; Formic ether; CAS RN.: 109-94-4 EINECS: 203-721-0 Molecular Weight:

    Founded in 2008, East Chemsources Limited is a professional manufacturer of supplier in food and beverage, pharmaceuticals, cosmetics and other industries. pharmaceutical field in

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    China (Mainland)  |  Contact Details

    Business Type:Manufacturers

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    Address:No.1581-12,Jinshui Road, Licang, Qingdao,China

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  • Casno:

    109-94-4

    Amadis Chemical offer CAS#109-94-4;CAT#A802114

    Min.Order: 10 Milligram

    FOB Price:  USD $ 0.0-0.0/Milligram

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    Founded in 2011, Amadis Chemical Company Limited is an innovative manufacturer of chemical products and technical service providers. Our business includes sales, manufacture, and s

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:86-571-89925085

    Address:Watts Cosine.No.166.Xiangmao Road.

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

    Chemwill Asia co.,Ltd is one of the leading manufacturer in CHINA.Our main production base is located in Xuzhou industry park. We produce a wide range of organics including Active pharmaceutical ingredients(APIs), Veterinary, Indole derivatives, Aro

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     China (Mainland)  |  Contact Details

    Business Type:Manufacturers

    Tel:021-51086038

    Address:High-Tech Industrial park,Chemical Economical Development Zone,Xuzhou, Jiangsu-Province, P.R.China

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 3.0-3.0/Kilogram

    DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-571-88938639

    Address:9/F, Unit 2 Changdi Torch Building, 259# WenSan Road, Xihu District, Hangzhou City 310012, P.R.China

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 5 Metric Ton

    FOB Price:  USD $ 1.0-2.0/Metric Ton

    Test Item Specification Results Purity ≥99% 99.47% Density(20°C) 0.917-0.921

    Welcome to Henan Sinotech! Sinotech Corporation has exceptional sourcing ability for chemicals used in Organic Fine Chemicals and APIs; Inorganic chemicals; Flame Retardants;OLED

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     China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:86-371-86181678

    Address:No. 260, Dongming Road,Jinshui District

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  • TIANFU-CHEM - Ethyl formate

  • Casno:

    109-94-4

    TIANFU-CHEM - Ethyl formate

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 1000.0-1000.0/Kilogram

    Henan Tianfu Chemical Co., Ltd. is located in Zhengzhou High-tech Development Zone with import and export license. We passed ISO 9001:2008 in 2009, and won "High-tech Enterprise" by provincial government in 2013.The objective of the com

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:86-371-55170693/55170694

    Address:Zhengzhou International Trade New Territory,Jinshui District,Zhengzhou ,China

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 50.0-55.0/Kilogram

    About us Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad.

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    Business Type:Trading Company

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  • Ethyl formate CAS NO.109-94-4

  • Casno:

    109-94-4

    Ethyl formate CAS NO.109-94-4

    Min.Order: 10 Gram

    FOB Price:  USD $ 0.0-0.0/Gram

    Minimum Order Qty. 10 Gram

    We, Jilin Tely Imp & Exp Co., Ltd. mainly supply and export products including: pharmaceutical raw materials,Chemical reagents, Food additives, pharmaceutical and pesticide interme

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     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:86-431-81915458

    Address:Room 302, 47 Changping Street, Chaoyang District, Changchun, Jilin Province,China

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  • Factory Direct Sales Low Price Ethyl formate

  • Casno:

    109-94-4

    Factory Direct Sales Low Price Ethyl formate

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

    Known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers.Our advantages:1, High quality with competitive price:1) Standard:BP/USP/EP/Enterprise standard2) All Purity≥99%3) We are manufacturer a

    Shaanxi Mingqi Chemical Co., Ltd is committed to the development of import and export trade in the production, operation and plant extracts of pharmaceutical raw materials and inte

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:18092428356

    Address:Weiyang District

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  • Ethyl formate CAS NO.109-94-4 CAS NO.109-94-4

  • Casno:

    109-94-4

    Ethyl formate CAS NO.109-94-4 CAS NO.109-94-4

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0/Gram

    1.place of origin china with super quality by reasonable price. 2. it's customers' right to choose the package (ems, dhl, fedex, ups); 3. it's customers' right to choose the packing way for his produccts from many recent

    Hebei Guanlang Biotechnology Co., Ltd. belongs to Guanlang Group,which was founded in 2007 , located in Shijiazhuang city which is the capital of Hebei Province and hub sector amon

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     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:+8619930503256

    Address:No.66, Yuhua West Road

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  • Ethyl formate/99.9%

  • Casno:

    109-94-4

    Ethyl formate/99.9%

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 0.0-0.0/Kilogram

    Changzhou Xuanming Chemical Co., Ltd. is dedicated to the technology development, manufacturing, import and export chemicals, which are specialized in pharmaceutical intermediates, pesticide intermediate, industry of fine chemicals and custom synt

    Changzhou Xuanming Chemical CO, LTD is dedicated to the technology development, manufacturing, import and export chemicals, which are specialized in pharmaceutical intermediates, p

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     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:86 0519 85525329

    Address:China Town, Xinbei, Changzhou, Jiangsu Room 6019

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  • Ethyl formate in stock with best price

  • Casno:

    109-94-4

    Ethyl formate in stock with best price

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 100.0-150.0/Kilogram

    Our company: Wuhan Monad Medicine Tech Co.,LTD is a research and development, production, sales in one high-tech company, own about 100 kinds of products, can provide about more than 30000 kinds of products.

    Wuhan Monad Medicine Tech Co.,LTD is a research and development, production, sales in one high-tech company, own about 100 kinds of products, can provide about more than 30000 kind

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     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:+8613397160123

    Address:13th Floor, Tower B, Century Plaza, Zhongnan Road, Wuchang District, Wuhan, China.

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0/Gram

    Henan Coreychem co., LTD focus on high complex new type intermediates and fine chemical custom synthesis,scale-up production and rare chemicals trade.Product category including Intermediates&API,Catalyst and Electronic Chemicals.Covering 811 sq

    Henan CoreyChem Co., Ltd, based on the original Zhengzhou Cote Chemical Research Institute, be brave in absorbing highly educated talents & overseas returnees; actively responded t

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-371-86658258

    Address:Building 3 of Innovation Park, East District of the National University Science Park

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 1 Gram

    FOB Price:  USD $ 1.0-2.0/Gram

    span lang="EN-US" style="font-size: 9.0pt;font-family:"Arial",sans-serif;color:#4D4D4D">As a leading manufacturer and supplier of chemicals in china, weckchem not only supply popular chemicals, but also weckchem’s r&d center off

    Hangzhou Weckchem Co.,Ltd, located in Hangzhou,China, is specialized in Green chemicals and Fine chemicals over 10 years. Our main products are used in Fuel oil, Water treatment an

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     China (Mainland)  |  Contact Details

    Business Type:Other

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0/Gram

    Betterbiochem is specialized in APIs, pharmaceutical intermediates & fine chemicals. 1. The best quality, competitive price. 2. The best service before or after shipment. 3. Rich experience in export operation. 4. Rich experience in

    Shanghai BetterBioChem Co., Ltd. specializes in research, production of APIs, building blocks and key pharmaceutical intermediates. We provide our products from milligrams to kilog

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-18013506594

    Address:No. 8 Building, 18 nong, Xi Yingnan Road, Pudong, Shanghai,China

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  • ISO 9001   National Research Platform CAS No.  109-94-4

  • Casno:

    109-94-4

    ISO 9001 National Research Platform CAS No. 109-94-4

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

    1. Subsidiary of Institute of Chemistry, Henan Academy of Sciences, national research platform;2. About 30 years’ experience in this field since 1983;3. An experienced R&D team consisting of Doctors and Masters;4. Various types of analytical instrume

    Zhengzhou Kingorgchem Chemical Technology Co., Ltd. was founded on the basis of Organophosphorus Chemistry Lab of Institute of Chemistry Henan Academy of Sciences in 2015. The

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-371-65511936

    Address:NO.56,Hongzhuan Road

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  • Ethyl formate china  manufacture

  • Casno:

    109-94-4

    Ethyl formate china manufacture

    Min.Order: 0 Metric Ton

    FOB Price:  USD $ 0.0-0.0/Metric Ton

    Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketing of chemicals. We have earned ourselves a good reputation at home

    Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketi

  •  Hangzhou ZeErRui Chemical Co., Ltd.

    China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-571-82512721

    Address:No 317,Jingling Road,Guali Town,Xiaoshan District

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 100 Metric Ton

    FOB Price:  USD $ 0.0-0.0/Metric Ton

    Lorcaserin(856681-05-5)is an orally administered agent and a selective 5-HT2C receptor agonist for the treatment of obesity. It had been approved for marketing in US by FDA on 27 June in 2012. In clinical studies, lorcaserin h

    Triumph International Development Limilted is engaged in the API, pharmaceutical intermediates research and developmen.Adhering to the "customer first" business philosophy,we suppl

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    China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-536-7971999

    Address:Yinhai Road,Shouguang

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  • High quality Ethylformate

  • Casno:

    109-94-4

    High quality Ethylformate

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 0.0-0.0/Kilogram

    BaiFuChem is a Professional chemical raw material supplier in China, our main products include Biochemical , Pharma Intermediate and Organic chemical etc. BaiFuChem have wealth of products,experience , expertise and state-of-the-art equ

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  •  Xiamen BaiFuchem Co.,Ltd

     China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:+86 592 605 6448

    Address:No.31 Pingshan South Road, HaiCang District, Xiamen, China

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

    Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

    Shandong Hanjiang Chemical Co., Ltd. is located in Qilu Petrochemical Industrial Park, Zibo City, Shandong Province, involving pesticide, medicine, chemical industry, coating, dy

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:18369939125

    Address:95A, Xingyuan East Road, Zhangdian District

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  • Ethyl Formate

  • Casno:

    109-94-4

    Ethyl Formate

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

    J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

    J&H Chemical is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other

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     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-571-87396432

    Address:No.200 Zhenhua Rd.Xihu Industrial Park, Hangzhou 310030, China

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  • Casno:

    109-94-4

    Ethyl formate, CAS:109-94-4 hot sale

    Min.Order: 25 Kilogram

    FOB Price:  USD $ 0.0-0.0/Kilogram

    Our advantages: 1, High quality with competitive price: 2, Fast and safe delivery 3.Excellent pre-sales and after-sales service 4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 years Appearanc

    Hangzhou Clap Technology Co., Ltd is a leading manufacturer and supplier of API, Pharma intermediates, organic and inorganic compounds, rare earth, pesticide, raw drugs, fine chemi

  •  HANGZHOU CLAP TECHNOLOGY CO,.LTD

     China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:86-571-56972507

    Address:Room 4198,Floor 4,No.4,ShanXian Road XiaCheng District,HangZhou city,ZheJiang province,China

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  • Casno:

    109-94-4

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    Min.Order: 1 Kilogram

    FOB Price:  USD $ 100.0-100.0/Kilogram

    HangYu Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. HangYu Chemical consis

    Zibo HangYu Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals

  •  Zibo Hangyu Import&Export Co., Ltd

    China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:86-15988566987

    Address:Room1701, Tianxing Building,Licheng district, jinan, Shandong, China

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  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 500 Gram

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    Profile HeBei Ruishun Trade Co.LTD, registered capital one million,have a production of pharmaceutical raw materials, pharmaceutical raw materials factory reagent r&d center,Seek development by credit

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    Business Type:Trading Company

    Tel:+86-0311-89278944

    Address:hebei

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  • Ethyl formate-

  • Casno:

    109-94-4

    Ethyl formate-

    Min.Order: 1 Gram

    FOB Price:  USD $ 0.0-0.0/Gram

    supplier in China Appearance:colourless liquid with an aromatic odour Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:100g/bottle,1kg/bottle,25kg/drum or as per your request Application:Used as a solvent, nitr

    Hangzhou Yunuo Chemical Co., Ltd. is located in Hangzhou City, China We are specialized in fine chemicals and basic chemical auxiliary materials, Organic compounds, rubber

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    China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:0571-83715115

    Address:hangzhou

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  • Ethyl formate 109-94-4CAS NO.: 109-94-4

  • Casno:

    109-94-4

    Ethyl formate 109-94-4CAS NO.: 109-94-4

    Min.Order: 1 Gram

    FOB Price:  USD $ 2.0-2.0/Gram

    We are leading fine chemicals supplier in China with ISO certificate, Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED

    The company is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds,

  •  Henan Wentao Chemical Product Co., Ltd.

     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:+86-370-2722992

    Address:32 Room, 5th Floor, Building 11, No. 6 Yinxing Road, High-tech Industrial Development Zone, Zhengzhou City, Henan Province

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  • Casno:

    109-94-4

    Factory Supply Ethyl formate

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    Ality Group, established in 2007, is a comprehensive Chemical Supply Group with Patent Technology as its core. Ality Group operates branches in Hong Kong, Singapore and mainland Ch

  •  Ality Chemical Corporation

     China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:0513-87616220

    Address:Fine chemical industry park, Nantong,Jiangsu

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  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 0

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    Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h

    Located in Hangzhou National Hi-Tech Industrial Development Zone, Hangzhou zhongqi chem co.,Ltd is an ISO 9001:2015 & SGS certified molden chemical company,who is mainly focus on t

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     China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:0086-571-86976032

    Address:Kangkang Gu 1010, Chun xiao road 61,Binjiang District 310052,Hangzhou city , China

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  • Casno:

    109-94-4

    Ethylformate

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0/

    Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

    Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns

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     China (Mainland)  |  Contact Details

    Business Type:Manufacturers

    Tel:0731-85567275

    Address:No.10048, xiangjiang centry bulding ,kaifu district ,changsha city ,Hunan

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  • low price\high quality99%\ Ethyl formate

  • Casno:

    109-94-4

    low price\high quality99%\ Ethyl formate

    Min.Order: 0 Metric Ton

    FOB Price:  USD $ 0.0-0.0/Metric Ton

    best quality, best price and best service. Appearance:Clear and colorless liquid Application:Used as solvent for nitrocellulose, cellulose acetate, in medicine is often used as intermediates such as ureacil

    Xi’an Yuanfar International Trade Company is a professional international trade platform based on China Aerospace Science and Technology Corporation. We have been engaged in chemic

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    China (Mainland)  |  Contact Details

    Business Type:Trading Company

    Tel:86-029-88745613 ext 828

    Address:Floor19th ,B Building, Oak Block,No.36 South Fenghui Road, Dev. Zone of High-Tech Ind.,Xi’an, China

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  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 0

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    Product Name:Natural Ethyl formate CAS: 109-94-4 MF: C3H6O2 MW: 74.08 EINECS: 203-721-0 Purity:95% FEMA:2434 mp 80 °C(lit.) bp 52-54 °C(lit.) density 0.921 g/mL at 20 …

    Located in Nanjing, a multi-producing industrial base in eastern China, an important hub of transportation and communication center, a major international commercial port in the Ya

  •  Nanjing Yuance Industry&Trade Co., Ltd.

     China (Mainland)  |  Contact Details

    Business Type:Manufacturers

    Tel:+86-25-87787622

    Address:B1702, No. 130, Aoti Avenue, Nanjing, China

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  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 0

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    Kono Chem Co.,Ltd is a leading producer of standardized herbal extracts, natural active ingredients and APIs for pharmaceutical, health food and cosmetic industries. Annually, mo

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     China (Mainland)  |  Contact Details

    Business Type:Other

    Tel:86-29-86107037-8015

    Address:No.11 Daqing Road,Lianhu District,Xi’an 710082,China

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  • Ethyl formate

  • Casno:

    109-94-4

    Ethyl formate

    Min.Order: 0

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    high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier

    GIHI CHEMICALS CO.,LIMITED, its former company is a small manufacturer who is specialized in the production of ester products which are used in the daily chemicals ,cosmetic produc

  •  GIHI CHEMICALS CO.,LIMITED

     China (Mainland)  |  Contact Details

    Business Type:Lab/Research institutions

    Tel:571-86217390

    Address:Huacai International Building,Sandun,Westlake District,Hangzhou 310030,Zhejiang,China

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Standards and Recommendations

OSHA PEL: TWA 100 ppm
ACGIH TLV: TWA 100 ppm
DFG MAK: 100 ppm (310 mg/m3)
DOT Classification:  3; Label: Flammable Liquid

Analytical Methods

For occupational chemical analysis use NIOSH: Ethyl Formate S36.

Specification

The Ethyl formate, with the CAS registry number 109-94-4 and EINECS registry number 203-721-0, is a kind of colourless liquid with an aromatic odour. It is moisture sensitive ester, and belongs to the following product categories: Organics; Analytical Chemistry; Solvents for HPLC & Spectrophotometry; Solvents for Spectrophotometry. And the molecular formula of this chemical is C3H6O2.

The physical properties of Ethyl formate are as followings: (1)ACD/LogP: 0.30; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.3; (4)ACD/LogD (pH 7.4): 0.3; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 34.63; (8)ACD/KOC (pH 7.4): 34.63; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 26.3 Å2; (13)Index of Refraction: 1.356; (14)Molar Refractivity: 17.87 cm3; (15)Molar Volume: 81.7 cm3; (16)Polarizability: 7.08×10-24cm3; (17)Surface Tension: 23.5 dyne/cm; (18)Density: 0.906 g/cm3; (19)Enthalpy of Vaporization: 29.91 kJ/mol; (20)Boiling Point: 54.7 °C at 760 mmHg; (21)Vapour Pressure: 242 mmHg at 25°C.

Preparation of Ethyl formate: It can start with esterification of formic acid and ethanol in the presence of catalyst sulphuric acid. And after neutralization and washing, you can get the product.
HCOOH + C2H5OH → HCOOC2H5 + H2O

Uses of Ethyl formate: It is an important intermediates in organic synthesis. It is usually used as the solution for nitro acetyl cellulose and marlspum, and bactericide, fumigant & larvicide for food. It is also used as essence.
 
You should be cautious while dealing with this chemical. It is a kind of flammable chemical which irritates eyes and respiratory system, and it is also harmful by inhalation and if swallowed. Therefore, you had better take the following instructions: Keep container in a well-ventilated place; Keep away from sources of ignition - No smoking; Avoid contact with skin; In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; Take precautionary measures against static discharges.

You can still convert the following datas into molecular structure:
(1)SMILES: O=COCC
(2)InChI: InChI=1/C3H6O2/c1-2-5-3-4/h3H,2H2,1H3
(3)InChIKey: WBJINCZRORDGAQ-UHFFFAOYAO

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 oral 1110mg/kg (1110mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

GASTROINTESTINAL: GASTRITIS
Food and Cosmetics Toxicology. Vol. 2, Pg. 327, 1964.
rabbit LD50 oral 2075mg/kg (2075mg/kg)   Industrial Medicine and Surgery. Vol. 41, Pg. 31, 1972.
rabbit LD50 skin > 20mL/kg (20mL/kg)   AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954.
rabbit LDLo subcutaneous 1gm/kg (1000mg/kg)   Food and Cosmetics Toxicology. Vol. 16, Pg. 737, 1978.
rat LCLo inhalation 8000ppm/4H (8000ppm)   AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 10, Pg. 61, 1954.
rat LD50 oral 1850mg/kg (1850mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: DYSPNEA
Food and Cosmetics Toxicology. Vol. 2, Pg. 327, 1964.