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74-95-3

Basic Information
CAS No.: 74-95-3
Name: Dibromomethane
Molecular Structure:
Molecular Structure of 74-95-3 (Dibromomethane)
Formula: CH2Br2
Molecular Weight: 173.85
Synonyms: Methylene bromide;Methylene dibromide;NSC 7293;Dibromomethane [UN2664] [Poison];Methane, dibromo-;
EINECS: 200-824-2
Density: 2.434 g/cm3
Melting Point: -52 °C
Boiling Point: 97 °C at 760 mmHg
Flash Point: 96-98 °C
Solubility: water: 0.1 g/100 mL (20 °C)
Appearance: colourless liquid
Hazard Symbols: HarmfulXn,ToxicT,FlammableF
Risk Codes: 20-52/53-39/23/24/25-23/24/25-11
Safety: 24-61-45-36/37-16-7
Transport Information: UN 2664 6.1/PG 3
PSA: 0.00000
LogP: 1.73370
Synthetic route
75-25-2

Bromoform

2857-97-8

trimethylsilyl bromide

A

18142-75-1

trimethyl-tribromomethyl-silane

B

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With hexaethylphosphoric triamide In diethyl ether at 20℃; for 1h;A 82%
B n/a
6317-18-6

bis(thiocyanato)methane

540-72-7

sodium thiocyanide

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
Stage #1: bis(thiocyanato)methane; sodium thiocyanide In methanol; water at 74 - 75℃; for 5h;
Stage #2: With sodium hydrogencarbonate In methanol; water pH=6.3; Concentration; Solvent;
79.3%
34557-54-5

methane

A

74-83-9

methyl bromide

B

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With bromine at 18 - 500℃; for 0.0166667h; Gas phase;A 70.6%
B 24.7%
With hydrogen bromide; oxygen; Mg/Ru/SiO2 In water at 580℃; Conversion of starting material;
With hydrogen bromide; oxygen; Ba/Bi/Ru/SiO2 In water at 580 - 600℃; Conversion of starting material;
75-09-2

dichloromethane

A

74-97-5

chlorobromomethane

B

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With calcium bromide; tetrahexylammonium bromide at 110℃; for 24h;A 30%
B 62%
With ethyl bromide; aluminum oxide; tetrabutyl phosphonium bromide at 170℃;A 49 % Spectr.
B 25 % Spectr.
With ethyl bromide at 170℃; Product distribution; var. of catalyst, reagent;A 50 % Spectr.
B 24 % Spectr.
With ethyl bromide; aluminum oxide at 170℃;A 66 % Spectr.
B 14 % Spectr.
76508-46-8

2-ethoxy-1,3-dioxane

75-25-2

Bromoform

A

2453-03-4

trimethylene carbonate

B

74-96-4

ethyl bromide

C

53452-10-1

3-Brompropylformiat

D

75-07-0

acetaldehyde

E

3-bromopropyl ethyl carbonate

F

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature;A n/a
B n/a
C n/a
D n/a
E 60%
F n/a
75-25-2

Bromoform

83498-70-8

2-(hexyloxy)-1,3-dioxolane

A

96-49-1

[1,3]-dioxolan-2-one

B

111-25-1

1-bromo-hexane

C

6065-67-4

formic acid-(2-bromo-ethyl ester)

D

66-25-1

hexanal

E

2-bromoethyl hexyl carbonate

F

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature;A n/a
B n/a
C n/a
D n/a
E 60%
F n/a
75-77-4

chloro-trimethyl-silane

75-25-2

Bromoform

A

18142-75-1

trimethyl-tribromomethyl-silane

B

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With hexaethylphosphoric triamide In diethyl ether at 20℃; for 1h;A 56%
B n/a
75-25-2

Bromoform

2-(hexyloxy)-m-dioxane

A

2453-03-4

trimethylene carbonate

B

111-25-1

1-bromo-hexane

C

53452-10-1

3-Brompropylformiat

D

66-25-1

hexanal

E

3-bromopropyl hexyl carbonate

F

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature;A n/a
B n/a
C n/a
D n/a
E 56%
F n/a
34557-54-5

methane

A

74-83-9

methyl bromide

B

75-25-2

Bromoform

C

558-13-4

carbon tetrabromide

D

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With bromine at 500℃; Product distribution; Further Variations:; Temperatures; Bromination;A 17.4%
B 0.48%
C 2.5%
D 5%
74-83-9

methyl bromide

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With bromine at 250℃;
109-72-8, 29786-93-4

n-butyllithium

558-13-4

carbon tetrabromide

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
at -50℃;
2465-56-7

methylene

75-25-2

Bromoform

74-95-3

1,2-dibromomethane

2465-56-7

methylene

594-18-3

dibromodichloromethane

A

75-35-4

1,1-Dichloroethylene

B

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
Tetrabrommethan,Bromoform und Jodoform reagieren analog;
75-11-6

diiodomethane

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With water; bromine
With bromine
34557-54-5

methane

A

75-25-2

Bromoform

B

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With bromine at 400℃;
75-09-2

dichloromethane

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With aluminum tri-bromide
With aluminum tri-bromide; hydrogen bromide
With bromine; aluminium
74-97-5

chlorobromomethane

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With bromine; aluminium
75-25-2

Bromoform

865-47-4

potassium tert-butylate

74-95-3

1,2-dibromomethane

75-25-2

Bromoform

925-90-6

ethylmagnesium bromide

A

74-96-4

ethyl bromide

B

34557-54-5

methane

C

617-78-7

3-ethylpentane

D

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
Produkt: Aethan, Acetylen;
75-25-2

Bromoform

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With alkali sulfite
With phenylhydrazine
With alkaline potassium arsenite man destilliert das Reaktionsprodukt mit Wasserdampf;
861525-37-3

2,2,5,5-tetrabromo-1,6-diphenyl-hexane-1,3,4,6-tetraone

furan-2,3,5(4H)-trione pyridine (1:1)

A

144-62-7

oxalic acid

B

65-85-0

benzoic acid

C

74-95-3

1,2-dibromomethane

64-19-7

acetic acid

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With bromine; pyrographite at 300℃;
79-08-3

bromoacetic acid

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
Electrolysis;
2465-56-7

methylene

594-18-3

dibromodichloromethane

108-90-7

chlorobenzene

A

75-35-4

1,1-Dichloroethylene

B

74-95-3

1,2-dibromomethane

2465-56-7

methylene

558-13-4

carbon tetrabromide

108-90-7

chlorobenzene

A

593-92-0

vinylidene dibromide

B

74-95-3

1,2-dibromomethane

75-25-2

Bromoform

100-63-0

phenylhydrazine

A

64-18-6

formic acid

B

74-95-3

1,2-dibromomethane

4544-20-1

2-ethoxy-1,3-dioxolane

75-25-2

Bromoform

A

96-49-1

[1,3]-dioxolan-2-one

B

74-96-4

ethyl bromide

C

6065-67-4

formic acid-(2-bromo-ethyl ester)

D

36842-22-5

2-bromoethyl ethyl carbonate

E

75-07-0

acetaldehyde

F

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With dibenzoyl peroxide at 90℃; for 0.5h; Product distribution;
dibenzoyl peroxide at 100℃; for 2h; Rate constant; Product distribution; other temperature, other time;
109-65-9

1-bromo-butane

75-09-2

dichloromethane

A

74-97-5

chlorobromomethane

B

109-69-3

n-Butyl chloride

C

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
aluminum oxide; tetrabutyl phosphonium bromide In gas at 150℃; Product distribution; effect of catalytic bed;
5721-88-0

2-phenyl-1,3-oxathiolane

A

79-27-6

1,1,2,2-tetrabromoethane

B

81110-22-7

S-(2-bromoethyl) benzothioate

C

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
With Bromoform; di-tert-butyl peroxide at 130℃; for 4.5h; Yields of byproduct given;A n/a
B 16 % Turnov.
C n/a
74-96-4

ethyl bromide

75-09-2

dichloromethane

A

75-00-3

chloroethane

B

74-97-5

chlorobromomethane

C

74-95-3

1,2-dibromomethane

Conditions
ConditionsYield
aluminum oxide; tetrabutyl phosphonium bromide In gas at 150℃; Product distribution; effect of catalytic bed;
124-38-9

carbon dioxide

74-95-3

1,2-dibromomethane

631-64-1

dibromoacetic acid

Conditions
ConditionsYield
Stage #1: 1,2-dibromomethane With 2,2,6,6-tetramethylpiperidinylmagnesium chloride lithium chloride complex In tetrahydrofuran; toluene at -78℃; for 0.5h; Inert atmosphere;
Stage #2: carbon dioxide In tetrahydrofuran; toluene at -78℃; for 3h;
100%
(i) nBuLi, CH2Cl2, THF, (ii) /BRN= 1900390/; Multistep reaction;
100-76-5

Quinuclidine

74-95-3

1,2-dibromomethane

104303-96-0

1-Bromomethyl-1-azonia-bicyclo[2.2.2]octane; bromide

Conditions
ConditionsYield
In acetonitrile at 30℃; under 750.06 Torr; for 3h;100%
40557-24-2

2-tert-butylcyclopentanone

74-95-3

1,2-dibromomethane

66228-12-4

1-tert-butyl-2-methylene-cyclopentane

Conditions
ConditionsYield
With titanium tetrachloride; zinc In dichloromethane100%
130611-53-9, 130695-96-4

(S)-1,2,3,10,11,12-Hexamethoxy-7-methyl-7,8-dihydro-5H-dibenzo[a,c]cycloocten-6-one

74-95-3

1,2-dibromomethane

114394-15-9, 130695-98-6, 135095-47-5

(S)-1,2,3,10,11,12-Hexamethoxy-6-methyl-7-methylene-5,6,7,8-tetrahydro-dibenzo[a,c]cyclooctene

Conditions
ConditionsYield
With titanium tetrachloride; zinc In dichloromethane for 0.25h; Ambient temperature;100%
511256-85-2

(4aR,6S,7R,8aS)-4-(4-methoxybenzyloxy)butyric acid 2,2-di(tert-butyl)-6-methyl-6-(2-methylallyl)-4,4a,6,7,8,8a-hexahydro-1,3,5-trioxa-2-silanaphthalen-7-yl ester

74-95-3

1,2-dibromomethane

511256-86-3

(4aR,6S,7R,8aS)-2,2-di(tert-butyl)-7-{1-[3-(4-methoxybenzyloxy)propyl]vinyloxy}-6-methyl-6-(2-methylallyl)-4,4a,6,7,8,8a-hexahydro-1,3,5-trioxa-2-silanaphthalene

Conditions
ConditionsYield
With N,N,N,N,-tetramethylethylenediamine; titanium tetrachloride; zinc; lead(II) chloride In tetrahydrofuran; dichloromethane for 2h; Heating;100%
4238-71-5

1-benzylimidazole

74-95-3

1,2-dibromomethane

1,1’-dibenzyl-3,3’-methylenediimidazolium dibromide

Conditions
ConditionsYield
In tetrahydrofuran at 100℃;100%
Inert atmosphere; Schlenk technique;99%
at 70 - 80℃;81%
133545-69-4

5,5,9-trimethylspiro<5.5>undec-8-en-1-one

74-95-3

1,2-dibromomethane

15401-86-2

3,7,7-trimethyl-11-methylenespiro[5.5]undec-2-ene

Conditions
ConditionsYield
With titanium tetrachloride; zinc In dichloromethane at 0 - 20℃; for 3h;100%
943226-61-7

5,5-dimethoxypentanoic acid 2,2-di-tert-butyl-6-methyl-6-(2-methylallyl)-hexahydro-1,3,5-trioxa-2-sila-naphthalen-7-yl ester

74-95-3

1,2-dibromomethane

1053270-93-1

C27H50O6Si

Conditions
ConditionsYield
With N,N,N,N,-tetramethylethylenediamine; titanium tetrachloride; zinc; lead(II) chloride In tetrahydrofuran; dichloromethane for 2h;100%
943226-85-5

4-[5-(3-benzyloxy-1-methylpropyl)-4-methyl-tetrahydro-furan-2-yl]-3-triisopropylsilanyloxy-butyric acid 2-but-3-enyl-10a,11a-dimethyl-dodecahydro-1,5,10-trioxa-cyclohepta[b]naphthalen-3-yl ester

74-95-3

1,2-dibromomethane

C48H80O7Si

Conditions
ConditionsYield
With N,N,N,N,-tetramethylethylenediamine; titanium tetrachloride; zinc; lead(II) chloride In dichloromethane at 65℃;100%
4316-42-1

1-Butylimidazole

74-95-3

1,2-dibromomethane

1,1’-di-n-butyl-3,3’-methylenediimidazolium dibromide

Conditions
ConditionsYield
In tetrahydrofuran at 100℃;100%
Inert atmosphere; Schlenk technique;89%
In tetrahydrofuran at 20 - 80℃; for 192h;87.6%
In acetonitrile for 96h; Reflux;

C18H25BO3

74-95-3

1,2-dibromomethane

C18H24BBrO3

Conditions
ConditionsYield
Stage #1: C18H25BO3; 1,2-dibromomethane With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 1h; Inert atmosphere;
Stage #2: With zinc(II) chloride In tetrahydrofuran; diethyl ether at -78 - 20℃; Inert atmosphere; enantioselective reaction;
100%

vilmorrianine E

74-95-3

1,2-dibromomethane

N-bromomethyl vilmorrianine E hydrobromide

Conditions
ConditionsYield
In ethyl acetate for 120h; Reflux;100%
102831-44-7

diethyl tert-butoxycarbonylaminomalonate

74-95-3

1,2-dibromomethane

C13H22BrNO6

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 20℃; Inert atmosphere;100%
34231-78-2

3-formylphenyl acetate

41908-11-6

3-acetylbenzaldehyde

74-95-3

1,2-dibromomethane

2454-30-0

3-vinylphenyl acetate

Conditions
ConditionsYield
With acetic anhydride99.7%
75-77-4

chloro-trimethyl-silane

74-95-3

1,2-dibromomethane

29955-10-0

dibromobis(trimethylsilyl)methane

Conditions
ConditionsYield
With lithium diisopropyl amide In tetrahydrofuran; hexane; pentane 1.) -110 deg C, 20 min, 2.) -110 deg C to r.t., 12 h;99%
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃;88%
With lithium diisopropyl amide In tetrahydrofuran at -100℃;60%
113352-74-2

(+)-(2,3-endo)-tert-butyldimethylsilyl 3-(1-oxopropyl)bicyclo<2.2.1>hept-5-ene-2-carboxylate

74-95-3

1,2-dibromomethane

113352-75-3

(+)-(2,3-endo)-tert-butyldimethylsilyl 3-(1-methenylpropyl)bicyclo<2.2.1>hept-5-ene-2-carboxylate

Conditions
ConditionsYield
With titanium tetrachloride; zinc In tetrahydrofuran; dichloromethane at 20℃; for 0.5h;99%
147043-60-5

5'-(O-tert-butyl(dimethyl)silyl)-3'-ketothymidine

74-95-3

1,2-dibromomethane

170638-74-1

1-[(2R,5S)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-4-methylene-tetrahydro-furan-2-yl]-5-methyl-1H-pyrimidine-2,4-dione

Conditions
ConditionsYield
With titanium tetrachloride; zinc In tetrahydrofuran; dichloromethane for 2h; Ambient temperature;99%
With titanium tetrachloride; zinc In tetrahydrofuran; dichloromethane
616-47-7

1-methyl-1H-imidazole

74-95-3

1,2-dibromomethane

1,1'-dimethyl-3,3'-methylenediimidazolium bromide

Conditions
ConditionsYield
In tetrahydrofuran at 130℃; for 24h;99%
Inert atmosphere; Schlenk technique;99%
for 18h; Reflux;96%
74-95-3

1,2-dibromomethane

391680-92-5

methyl 5,6-dihydroxy-2-thien-2-ylpyrimidine-4-carboxylate

766557-56-6

5-thiophen-2-yl-[1,3]dioxolo[4,5-d]pyrimidine-7-carboxylic acid methyl ester

Conditions
ConditionsYield
With potassium fluoride In N,N-dimethyl-formamide at 120℃;99%
946121-16-0

3-(5-chloro-2-methoxy-benzenesulfonylamino)-4-hydroxy-benzoic acid methyl ester

74-95-3

1,2-dibromomethane

946121-17-1

3-(5-chloro-2-methoxy-benzenesulfonyl)-2,3-dihydro-benzooxazole-5-carboxylic acid methyl ester

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 48h;99%

indium(I) bromide

67-68-5

dimethyl sulfoxide

74-95-3

1,2-dibromomethane

99666-59-8

Br2InCH2Br*3(CH3)2SO

Conditions
ConditionsYield
In dimethyl sulfoxide DMSO added to suspn. of InBr in CH2Br2 at ca. -80°C, allowed to reach room temp. with stirring, further stirred for 1 h; evapd. in vac., oil solidified on stirring with petroleum ether, solid washed with Et2O, dried in vac.; elem. anal.;99%
185411-43-2

(CoH(NC5H4CH2CH2NHCH(CH3)C(CH3)NO)2)(2+)

74-95-3

1,2-dibromomethane

377734-77-5

((CH2)Co(NC5H4CH2CH2NHCH(CH3)C(CH3)NO)2)(1+)*ClO4(1-)=((CH2)Co(NC5H4CH2CH2NHCH(CH3)C(CH3)NO)2)ClO4

Conditions
ConditionsYield
With NaBH4; PdCl2; NaOH In methanol; water soln. NaOH was added to suspn. Co(III) complex in MeOH under Ar, NaBH4 in water was added, PdCl2 in aq. HCl was added, after 15 min CH2Br2 was added;99%
532932-53-9

[Rh(triphenylphosphine)(C5Me5)((2,4,6-tri-tert-butylphenyl)phosphinidene)]

74-95-3

1,2-dibromomethane

(η5-C5Me5)Rh{PPh3}Br2

Conditions
ConditionsYield
In pentane byproducts: ((CH3)3C)3C6H2PCH2; (N2 or Ar); treatment of soln. of Rh(PPh3)(C5Me5)(PC6H2(t-Bu)3) in n-pentane with small excess of CH2Br2 at room temp. for 12 h; pptn., decanting, washing with n-pentane;99%
13154-24-0

triisopropylsilyl chloride

74-95-3

1,2-dibromomethane

(dibromomethyl)triisopropylsilane

Conditions
ConditionsYield
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃; Inert atmosphere;99%
With lithium diisopropyl amide In tetrahydrofuran at -78 - 20℃;99%

(S)-6,6'-dimethyl-5,5'-dibromo-2,2'-dihydroxybiphenyl

74-95-3

1,2-dibromomethane

C15H12Br2O2

Conditions
ConditionsYield
With potassium carbonate In acetonitrile for 4h; Reflux;99%

ethyl N-(2-iodophenyl)-N-(2-phenylacryloyl)glycinate

74-95-3

1,2-dibromomethane

ethyl 2-(2'-oxo-2,3-dihydrospiro[indene-1,3'-indolin]-1'-yl)acetate

Conditions
ConditionsYield
With palladium diacetate; tetra-(n-butyl)ammonium iodide; potassium carbonate; triethylamine; tris-(o-tolyl)phosphine In N,N-dimethyl acetamide at 90℃; for 12h; Schlenk technique; Inert atmosphere; Sealed tube;99%

N-benzyl-N-(2-iodophenyl)-2-phenylacrylamide

74-95-3

1,2-dibromomethane

1'-benzyl-2,3-dihydrospiro[indene-1,3'-indolin]-2'-one

Conditions
ConditionsYield
With palladium diacetate; tetra-(n-butyl)ammonium iodide; potassium carbonate; triethylamine; tris-(o-tolyl)phosphine In N,N-dimethyl acetamide at 90℃; for 12h; Schlenk technique; Inert atmosphere; Sealed tube;99%
111-90-0

ethoxyethoxyethanol

74-95-3

1,2-dibromomethane

42598-91-4

1,13-diethoxy-3,6,8,11-tetraoxa-tridecane

Conditions
ConditionsYield
With potassium hydroxide; tetrabutylammomium bromide In water; chlorobenzene at 50℃; for 0.5h;98.58%
556-24-1

methyl 3-methylbutanoate

74-95-3

1,2-dibromomethane

932-58-1, 89312-78-7, 172419-34-0

l-methyl dl-2,2-dimethylcyclopropane-1-carboxylate

Conditions
ConditionsYield
With acetyl chloride; copper(l) chloride In dichloromethane for 12h; Reagent/catalyst; Reflux;98.2%
65-85-0

benzoic acid

74-95-3

1,2-dibromomethane

5342-31-4

bis(benzoyloxy)methane

Conditions
ConditionsYield
With anion exchange resin for 5h; Heating;98%
With sodium hydroxide
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    Dibromomethane English name: dibromomethane CAS no. : 74-95-3 Molecular formula: CH2Br2 Content: dibromomethane content: 99.0% or higher. Bromochloromethane: 0.8% or less. Methylene chloride: 0.1% or less The physical and che

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  • Dibromomethane

  • Casno:

    74-95-3

    Dibromomethane

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    ProductName:Dibromomethane Synonyms:DBM;DIBROMOMETHANE;METHYLENEDIBROMIDE;METHYLENEBROMIDE;CH2Br2;Dibrommethan;dibromo-methan;methane,dibromo … Appearance:colourless liquid Storage:Refrigerator Package:125k drums Application:Pharmaceutical I

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  • Dibromomethane, 99% 74-95-3

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    74-95-3

    Dibromomethane, 99% 74-95-3

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Chemistry


IUPAC Name: Dibromomethane 
Empirical Formula: CH2Br2
Molecular Weight: 173.8346
Canonical SMILES: C(Br)Br
InChI: InChI=1S/CH2Br2/c2-1-3/h1H2
InChIKey: FJBFPHVGVWTDIP-UHFFFAOYSA-N
EINECS: 200-824-2
Product Categories: Pharmaceutical Intermediates; Organics; alpha,omega-Bifunctional Alkanes; alpha,omega-Dibromoalkanes; Monofunctional & alpha,omega-Bifunctional Alkanes; Analytical Chemistry; Standard Solution of Volatile Organic Compounds for Water & Soil Analysis; Standard Solutions (VOC); Alpha Sort; BromoVolatiles/ Semivolatiles; Chemical Class; D; DAlphabetic; DIA - DIC; Halogenated 
storage temp.: Refrigerator
Water Solubility: 0.1 g/100 mL (20 ºC) 
Stability: Stable. Incompatible with strong oxidizing agents, aluminium, magnesium. Reacts violently with potassium. 
Index of Refraction: 1.532
Molar Refractivity: 22.14 cm3
Molar Volume: 71.4 cm3
Surface Tension: 37 dyne/cm
Density: 2.434 g/cm3
Flash Point: 96-98 °C
Enthalpy of Vaporization: 32.92 kJ/mol
Boiling Point: 97 °C at 760 mmHg
Vapour Pressure: 48.7 mmHg at 25 °C
Appearance: colourless liquid
Melting Point: -52 °C
Classification Code of Dibromomethane (CAS NO.74-95-3): Mutagens; Mutation data; Noxae; TSCA Flag T [Subject to the Section 4 test rule under TSCA]

Uses

 Dibromomethane (CAS NO.74-95-3) is used as a solvent, gage fluid and in organic synthesis.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 subcutaneous 3738mg/kg (3738mg/kg)   Toxicology and Applied Pharmacology. Vol. 4, Pg. 354, 1962.
rabbit LD50 oral 1gm/kg (1000mg/kg)   Dow Chemical Company Reports. Vol. MSD-472,
rabbit LD50 skin > 4gm/kg (4000mg/kg)   Dow Chemical Company Reports. Vol. MSD-472,
rabbit LDLo rectal 5gm/kg (5000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION
Journal of Pharmacology and Experimental Therapeutics. Vol. 34, Pg. 223, 1928.
rat LC50 inhalation 40gm/m3/2H (40000mg/m3)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 83, 1982.
rat LD50 oral 108mg/kg (108mg/kg)   National Technical Information Service. Vol. PB85-143766

Consensus Reports

Community Right-To-Know List. Reported in EPA TSCA Inventory.

Safety Profile

Hazard Codes:  HarmfulXn,ToxicT,FlammableF
Risk Statements:  20-52/53-39/23/24/25-23/24/25-11 
R20:Harmful by inhalation. 
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R39:Danger of very serious irreversible effects. 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R11:Highly flammable.
Safety Statements:  24-61-45-36/37-16-7 
S24:Avoid contact with skin. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S36/37:Wear suitable protective clothing and gloves. 
S16:Keep away from sources of ignition. 
S7:Keep container tightly closed.
RIDADR:UN 2664 6.1/PG 3
WGK Germany:  2
RTECS:  PA7350000
HazardClass:  6.1
PackingGroup:  III
A poison. Moderately toxic by subcutaneous route. Mildly toxic by inhalation. Mutation data reported. Mixtures with potassium explode on light impact. When heated to decomposition it emits toxic fumes of Br.

Standards and Recommendations

DOT Classification:  6.1; Label: KEEP AWAY FROM FOOD

Specification

  Dibromomethane (CAS NO.74-95-3), its Synonyms are Methylene bromide ; Methane, dibromo- ; Methylene bromide ; Methylene dibromide .