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103-76-4

Basic Information
CAS No.: 103-76-4
Name: 1-(2-Hydroxyethyl)piperazine
Molecular Structure:
Molecular Structure of 103-76-4 (1-(2-Hydroxyethyl)piperazine)
Formula: C6H14N2O
Molecular Weight: 130.19
Synonyms: (b-Hydroxyethyl)piperazine;1-(2-Hydroxyethyl)piperazine;1-(b-Hydroxyethyl)piperazine;2-(1-Piperazinyl)ethanol;2-(Piperazin-1-yl)ethanol;2-Piperazinoethanol;N-(2-Hydroxyethyl)piperazine;N-(2'-Hydroxyethyl)piperazine;N-(b-Hydroxyethyl)piperazine;NSC 26884;NSC 38969;NSC 60706;
EINECS: 203-142-3
Density: 1.012 g/cm3
Melting Point: -38.5 °C
Boiling Point: 245 °C at 760 mmHg
Flash Point: 101.9 °C
Solubility: Miscible with water
Appearance: Clear colorless to pale yellow oily liquid
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38-41
Safety: 26-36/37/39
Transport Information:
PSA: 35.50000
LogP: -0.84940
Synthetic route
161742-25-2

4-[(3-methyl-2-butenyl)oxycarbonyl]-1-(2-hydroxyethyl)piperazine

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With diethylamine; Pd(0) (in situ from Pd(OAc)2 and m.sulfonated triphenylphosphine) In water; acetonitrile for 0.25h; 5 molpercent catalyst;100%
27612-67-5

2-(4-allyl-piperazin-1-yl)-ethanol

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With Thiosalicylic acid; 1,4-di(diphenylphosphino)-butane; bis(dibenzylideneacetone)-palladium(0) In tetrahydrofuran at 20℃; for 0.5h;100%
75-21-8

oxirane

110-85-0

piperazine

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
In various solvent(s) at 40℃; for 0.5h;95%
In water at 15 - 35℃; for 2h; Temperature;81.7%
141-43-5

ethanolamine

334-22-5

N,N-bis(chloro-2-ethyl)amine

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With potassium carbonate In water at 83℃; for 5h; Temperature;94%
110-85-0

piperazine

141-46-8

Glycolaldehyde

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With manganese; chromium; hydrogen; nickel; aluminium In water at 150℃; under 22502.3 Torr; Temperature; Pressure; Reagent/catalyst; Solvent; Autoclave;92.3%
23936-04-1

4-(2-hydroxyethyl)-2-piperazinone

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With ammonia at 40℃; under 1500.15 Torr; for 2.5h;88%
110-85-0

piperazine

540-51-2

2-bromoethanol

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

122-96-3

1,4-bis(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With hydrogenchloride In methanol; water for 2.5h; pH=8.5; pH-value; Reagent/catalyst; Inert atmosphere;A 86.2%
B n/a
150479-63-3

8-methyl-2-(2-n-propoxyphenyl)quinazolin-4(3H)-one

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

2-{5-[4-(2-hydroxyethyl)-1-piperazinylsulphonyl]-2-n-propoxyphenyl}-8-methylquinazolin-4(3H)-one

Conditions
ConditionsYield
A n/a
B 84%
64055-53-4

2-[2-(ethyloxy)phenyl]quinazoline-4(3H)-one

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

150479-46-2

2-{2-Ethoxy-5-[4-(2-hydroxyethyl)-1-piperazinyl-sulphonyl]phenyl}quinazolin-4(3H)-one

Conditions
ConditionsYield
A n/a
B 78%
64055-53-4

2-[2-(ethyloxy)phenyl]quinazoline-4(3H)-one

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

150479-46-2

2-{2-Ethoxy-5-[4-(2-hydroxyethyl)-1-piperazinylsulphonyl]phenyl}quinazolin-4(3)-one

Conditions
ConditionsYield
A n/a
B 78%
141-43-5

ethanolamine

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

122-96-3

1,4-bis(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; sodium hydrogencarbonate In water at 140℃; for 96h; Inert atmosphere; Heating;A 30%
B 27%
75-21-8

oxirane

110-85-0

piperazine

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

122-96-3

1,4-bis(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With methanol
With methanol

Ethoxy-phenoxy-piperazin-1-yl-methanethiol

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

116849-48-0

O-ethyl O'-phenyl thiocarbonate

Conditions
ConditionsYield
With potassium chloride In water at 25℃; Rate constant;
N-<β-oxy-ethyl>-piperazine-N'-carboxylic acid ethyl ester

N-<β-oxy-ethyl>-piperazine-N'-carboxylic acid ethyl ester

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With hydrogenchloride
N,N'-bis-<2-hydroxy-ethyl>-ethylenediamine hydrochloride

N,N'-bis-<2-hydroxy-ethyl>-ethylenediamine hydrochloride

A

110-85-0

piperazine

B

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
at 200℃;
89727-93-5

1-(2-bromo-ethyl)-piperazine; dihydrobromide

aqueous NaOH

aqueous NaOH

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

isomeric compound to 2-piperazino-ethanol C6H14N2O

isomeric compound to 2-piperazino-ethanol C6H14N2O

Conditions
ConditionsYield
at 50℃;
56227-56-6

(4-(2-hydroxyethyl)piperazin-1-yl)(phenyl)methanone

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With hydrogenchloride Heating;

2-(3-trifluoromethyl-phenylamino)-nicotinic acid 2-[4-(2-hydroxy-ethyl)-piperazin-1-yl]-2-oxo-ethyl ester

A

103-76-4

1-(2-hydroxyethyl)piperazine

B

2-(3-trifluoromethyl-phenylamino)nicotinic acid carboxymethyl ester

Conditions
ConditionsYield
With phosphate buffer; potassium chloride In methanol at 37℃; for 8h; pH=7.4; Kinetics; Further Variations:; pH-values;

4-(2-Allyloxycarbonyloxy-ethyl)-piperazine-1-carboxylic acid 3-methyl-but-2-enyl ester

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent / diethylamine / Pd(0) (in situ from Pd(OAc)2 and m.sulfonated triphenylphosphine) / H2O; various solvent(s) / 0.33 h / 5 molpercent catalyst
2: 100 percent / diethylamine / Pd(0) (in situ from Pd(OAc)2 and m.sulfonated triphenylphosphine) / H2O; acetonitrile / 0.25 h / 5 molpercent catalyst
View Scheme
107-15-3

ethylenediamine

A

110-85-0

piperazine

B

103-76-4

1-(2-hydroxyethyl)piperazine

C

140-31-8

aminoethylpiperazine

D

111-41-1

2-(2-Aminoethylamino)ethanol

E

111-40-0

1,5-diamino-3-azapentane

F

112-24-3

triethylentetramine

Conditions
ConditionsYield
With hydrogen at 150 - 160℃; under 22502.3 Torr;
141-43-5

ethanolamine

A

110-85-0

piperazine

B

103-76-4

1-(2-hydroxyethyl)piperazine

C

140-31-8

aminoethylpiperazine

D

111-41-1

2-(2-Aminoethylamino)ethanol

E

107-15-3

ethylenediamine

F

111-40-0

1,5-diamino-3-azapentane

G

112-24-3

triethylentetramine

Conditions
ConditionsYield
With ammonia; hydrogen at 170℃; under 150015 Torr;
110-85-0

piperazine

624-76-0

Iodoethanol

103-76-4

1-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
With potassium carbonate; sodium iodide In ethanol for 12h; Reflux;
102-71-6

triethanolamine

A

110-85-0

piperazine

B

103-76-4

1-(2-hydroxyethyl)piperazine

C

140-31-8

aminoethylpiperazine

Conditions
ConditionsYield
With ammonia; hydrogen; Ni/Re (6.8wtpercent/1.8wtpercent) on silica/alumina (80/20) at 170℃; under 85781.4 - 99537.9 Torr; for 16h; Product distribution / selectivity; Autoclave;
102-71-6

triethanolamine

A

110-85-0

piperazine

B

103-76-4

1-(2-hydroxyethyl)piperazine

C

140-31-8

aminoethylpiperazine

D

3197-06-6

N,N-bis(2-hydroxyethyl)ethylidenediamine

Conditions
ConditionsYield
With ammonia; hydrogen; Ni/Re (6.8wtpercent/1.8wtpercent) on silica/alumina (80/20) at 170℃; under 85781.4 - 99537.9 Torr; for 10h; Product distribution / selectivity; Autoclave;
103-76-4

1-(2-hydroxyethyl)piperazine

24424-99-5

di-tert-butyl dicarbonate

77279-24-4

tert-butyl 4-(2-hydroxyethyl)piperazine-1-carboxylate

Conditions
ConditionsYield
In tetrahydrofuran for 3h;100%
With triethylamine In tetrahydrofuran100%
In tetrahydrofuran for 2h;100%
103-76-4

1-(2-hydroxyethyl)piperazine

845526-60-5

4-chlorobutyric acid 3-diethylaminopropyl ester

845526-69-4

4-[4-(2-hydroxyethyl)piperazin-1-yl]butyric acid 3-diethylaminopropyl ester

Conditions
ConditionsYield
With potassium carbonate In toluene at 100℃; for 48h;100%
103-76-4

1-(2-hydroxyethyl)piperazine

2923-96-8

4-fluoro-2-nitrobenzaldehyde

904896-09-9

4-[4-(2-hydroxyethyl)piperazin-1-yl]-2-nitrobenzaldehyde

Conditions
ConditionsYield
In dimethyl sulfoxide at 100℃; for 1.5h;100%
103-76-4

1-(2-hydroxyethyl)piperazine

501-53-1

benzyl chloroformate

14000-67-0

benzyl 4-(2-hydroxyethyl)-1-piperazinecarboxylate

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran at 0 - 20℃; for 3.5h;100%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 24h;91%
With sodium hydroxide In water; acetonitrile at 20℃; pH=9; Inert atmosphere;90%
103-76-4

1-(2-hydroxyethyl)piperazine

1780-26-3

2,4-dichloro-2-methylpyrimidine

127116-19-2

2-(4-(6-chloro-2-methylpyrimidin-4-yl)piperazin-1-yl)ethanol

Conditions
ConditionsYield
With triethylamine In dichloromethane at 30℃;100%
Stage #1: 1-(2-hydroxyethyl)piperazine; 2,4-dichloro-2-methylpyrimidine In dichloromethane at 30℃; for 2.5h;
Stage #2: With triethylamine In dichloromethane
89.8%
Stage #1: 1-(2-hydroxyethyl)piperazine; 2,4-dichloro-2-methylpyrimidine In dichloromethane at 30℃; for 2.5h;
Stage #2: With triethylamine In dichloromethane
89.8%
103-76-4

1-(2-hydroxyethyl)piperazine

1067884-35-8

(2′Z-3′E)-6-bromoindirubin-3′-[O-(2-bromoethyl)oxime]

1067884-47-2

(2'Z-3'E)-6-bromoindirubin-3'-(O-{2-[4-(2-hydroxyethyl)piperazin-1-yl]ethyl}oxime)

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 50℃;100%
In N,N-dimethyl-formamide at 90℃; for 0.666667h; Inert atmosphere; Microwave irradiation;
103-76-4

1-(2-hydroxyethyl)piperazine

105-34-0

methyl 2-cyanoacetate

15029-35-3

3-[4-(2-hydroxyethyl)piperazin-1-yl]-3-oxopropanenitrile

Conditions
ConditionsYield
neat (no solvent);100%
103-76-4

1-(2-hydroxyethyl)piperazine

1159982-72-5

5,7-dichloro-2-phenylpyrazolo[1,5-a]pyrimidine

1232224-20-2

5-Chloro-7-[1-(2-hydroxyethyl)-piperazin-4-yl]-2-phenyl-pyrazolo[1,5-a]-pyrimidine

Conditions
ConditionsYield
In 1,4-dioxane at 1 - 30℃; for 1h;100%
103-76-4

1-(2-hydroxyethyl)piperazine

95365-88-1

cis-10-(3-Dimethylamino-propyliden)-2-trifluormethyl-thiaxanthen

2709-56-0

2-{4-[3-(2-trifluoromethyl-thioxanthen-9-ylidene)-propyl]-piperazin-1-yl}-ethanol

Conditions
ConditionsYield
at 140℃; for 36h; Temperature; Large scale;100%
103-76-4

1-(2-hydroxyethyl)piperazine

N-[2,4-dibromo-6-methylpyridin-3-yl]-2-bromoacetamide

N-[2,4-dibromo-6-methylpyridin-3-yl]-2-[4-(2-hydroxyethyl)piperazin-1-yl]acetamide

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 20℃; for 24h;99%
103-76-4

1-(2-hydroxyethyl)piperazine

1254043-23-6

6-chloro-N-methyl-4-propylnicotinamide

1254043-24-7

6-[4-(2-hydroxyethyl)piperazin-1-yl]-N-methyl-4-propylnicotinamide

Conditions
ConditionsYield
In tetrahydrofuran at 20 - 100℃; for 18h;99%
103-76-4

1-(2-hydroxyethyl)piperazine

66074-00-8

3,4-bis(phenylsulfonyl)-1,2,5-oxadiazole 2-oxide

1245575-37-4

3-(phenylsulfonyl)-4-(2-(piperazin-1-yl)ethoxy)-1,2,5-oxadiazole-2-oxide

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran at 0℃; for 4h;99%
With sodium hydride In tetrahydrofuran at 0℃; for 4h;99%
With sodium hydroxide In tetrahydrofuran; water at 0 - 20℃;56%
103-76-4

1-(2-hydroxyethyl)piperazine

66298-49-5

4,6-diiodo-2-methylpyrimidine

2-(4-(6-iodo-2-methylpyrimidin-4-yl)piperazin-1-yl)ethanol

Conditions
ConditionsYield
With triethylamine In isopropyl alcohol at 60℃; for 1h;99%
103-76-4

1-(2-hydroxyethyl)piperazine

3,3'-bis(3-bromopropoxy)-2,2'-dimethyl-1,1'-biphenyl

76-05-1

trifluoroacetic acid

2,2'-((((2,2'-dimethyl-[1,1'-biphenyl]-3,3'-diyl)bis(oxy))bis(propane-3,1-diyl))bis(piperazine-4,1-diyl))bis(ethan-1-ol) trifluoroacetate

Conditions
ConditionsYield
Stage #1: 1-(2-hydroxyethyl)piperazine; 3,3'-bis(3-bromopropoxy)-2,2'-dimethyl-1,1'-biphenyl With N-ethyl-N,N-diisopropylamine In methanol at 65℃; for 72h; Inert atmosphere;
Stage #2: trifluoroacetic acid In water; acetonitrile
99%
103-76-4

1-(2-hydroxyethyl)piperazine

1'-(2-bromoacetyl)spiro[chromane-2,4'-piperidin]-4-one

1'-(2-(4-(2-hydroxyethyl)piperazin-1-yl)acetyl)spiro[chromane-2,4'-piperidin]-4-one

Conditions
ConditionsYield
With potassium carbonate; sodium iodide In N,N-dimethyl-formamide at 60℃; for 2h;99%
103-76-4

1-(2-hydroxyethyl)piperazine

95893-90-6

2-(chloromethyl)-1-(ethoxyethyl)-1H-benzimidazole

95894-06-7

2-{4-[1-(2-Ethoxy-ethyl)-1H-benzoimidazol-2-ylmethyl]-piperazin-1-yl}-ethanol

Conditions
ConditionsYield
In 1,4-dioxane at 50℃; for 2h;98%
103-76-4

1-(2-hydroxyethyl)piperazine

4739-94-0

ethyl 2,3-dihydro-1,4-benzodioxin-2-carboxylate

N-(2,3-dihydrobenzo<1,4>dioxin-2-carbonyl)-N'-(2-hydroxyethyl)piperazine

Conditions
ConditionsYield
at 110℃; for 3h;98%
103-76-4

1-(2-hydroxyethyl)piperazine

98596-13-5

methyl 6,11-dioxo-6,11- dihydrobenzo[f]pyrido [1,2-a]indole-12-carboxylate

12-[4-(2-hydroxy-ethyl)-piperazine-1-carbonyl]-benzo[f]pyrido[1,2-a]indole-6,11-dione

Conditions
ConditionsYield
at 80℃; for 3h;98%
103-76-4

1-(2-hydroxyethyl)piperazine

937394-83-7

methyl 7,10-dihydroxy-6,11-dioxo-6,11-dihydro-benzo[f]pyrido[1,2-a]indole-12-carboxylate

7,10-dihydroxy-12-[4-(2-hydroxy-ethyl)-piperazine-1-carbonyl]-benzo[f]pyrido[1,2-a]indole-6,11-dione

Conditions
ConditionsYield
at 80℃; for 3h;98%
103-76-4

1-(2-hydroxyethyl)piperazine

C16H20BrF3O4

C22H33F3N2O5

Conditions
ConditionsYield
In tetrahydrofuran at 0 - 20℃; for 5h;98%
103-76-4

1-(2-hydroxyethyl)piperazine

459-57-4

4-fluorobenzaldehyde

4-benzaldehyde

Conditions
ConditionsYield
With potassium carbonate In water at 100℃; for 12h;98%
With potassium carbonate In water at 80℃; for 24h;95%
With potassium carbonate In dimethyl sulfoxide at 100℃; for 12h;70%
103-76-4

1-(2-hydroxyethyl)piperazine

1780-26-3

2,4-dichloro-2-methylpyrimidine

2-amino-7-hydroxy-4-(4-methoxyphenyl)-1,4-dihydroquinoline-3-carbonitrile

2-amino-7-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)oxy)-4-(4-methoxyphenyl)-1,4-dihydroquinoline-3-carbonitrile

Conditions
ConditionsYield
Stage #1: 2-amino-7-hydroxy-4-(4-methoxyphenyl)-1,4-dihydroquinoline-3-carbonitrile With potassium carbonate In acetone at 20℃; for 0.25h;
Stage #2: 2,4-dichloro-2-methylpyrimidine In acetone at 80℃; for 0.25h;
Stage #3: 1-(2-hydroxyethyl)piperazine In acetone at 80℃; for 12h;
98%
103-76-4

1-(2-hydroxyethyl)piperazine

14625-39-9

2-(chloromethyl)-6-nitro-1H-benzo[d]imidazole

2-(4-((6-nitro-1H-benzo[d]imidazol-2-yl)methyl)piperazin-1-yl)ethan-1-ol

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 3h;97.8%
With potassium carbonate In tetrahydrofuran at 20℃; for 1h;87.6%
103-76-4

1-(2-hydroxyethyl)piperazine

5271-67-0

2-Thiophenecarbonyl chloride

80838-51-3

Thiophene-2-carboxylic acid 2-[4-(thiophene-2-carbonyl)-piperazin-1-yl]-ethyl ester

Conditions
ConditionsYield
In benzene for 1h; Heating;97%
103-76-4

1-(2-hydroxyethyl)piperazine

72966-79-1

2,6-bis(3-chloropropionamido)anthracene-9,10-dione

134888-47-4

2,6-bis<3-<4-(2-hydroxyethyl)piperazino>propionamido>anthracene-9,10-dione

Conditions
ConditionsYield
In ethanol for 14h; Heating;97%
103-76-4

1-(2-hydroxyethyl)piperazine

105189-21-7

2-chloro-4-(4-fluorophenyl)quinoline

105188-98-5

2-[4-(2-hydroxyethyl)-1-piperazinyl]-4-(4-fluorophenyl)quinoline dihydrochloride

Conditions
ConditionsYield
at 130℃; for 2h;97%
In water
185-78-4

1-thiaspiro<2.5>octane

103-76-4

1-(2-hydroxyethyl)piperazine

2-[4-(1-mercapto-cyclohexylmethyl)-piperazin-1-yl]-ethanol

Conditions
ConditionsYield
at 80℃; for 4h;97%
103-76-4

1-(2-hydroxyethyl)piperazine

302964-08-5

2-(6-chloro-2-methylpyrimidin-4-ylamino)-N-(2-chloro-6-methylphenyl)thiazole-5-carboxamide

302962-49-8

dasatanib

Conditions
ConditionsYield
With tetrabutylammomium bromide In acetonitrile at 30 - 80℃;97%
In propan-1-ol at 115 - 120℃; Temperature;93%
With copper(l) chloride In N,N-dimethyl-formamide at 65℃; for 2h; Temperature; Reagent/catalyst;91.6%
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    103-76-4

    N-(2-Hydroxyethyl)piperazine

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    Business Type:Lab/Research institutions

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    103-76-4

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    103-76-4

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    103-76-4

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    103-76-4

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    103-76-4

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    Business Type:Other

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    103-76-4

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    103-76-4

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    Business Type:Trading Company

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    103-76-4

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    BLOOM TECH Advanced API/Technology support 1-(2-Hydroxyethyl)piperazine CAS 103-76-4

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    Business Type:Lab/Research institutions

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    103-76-4

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    Business Type:Lab/Research institutions

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    103-76-4

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    Business Type:Lab/Research institutions

    Tel:+86-21-52196435

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    103-76-4

    N-(2-Hydroxyethyl)piperazine CAS NO. 103-76-4

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    103-76-4

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    103-76-4

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    103-76-4

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    103-76-4

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    Business Type:Trading Company

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

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    103-76-4

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    Business Type:Lab/Research institutions

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    103-76-4

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    Business Type:Lab/Research institutions

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    103-76-4

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    103-76-4

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    103-76-4

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    103-76-4

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    103-76-4

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    Business Type:Lab/Research institutions

    Tel:18369939125

    Address:95A, Xingyuan East Road, Zhangdian District

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    103-76-4

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    103-76-4

    N-(2-hydroxyethyl)piperazine

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    103-76-4

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    103-76-4

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    Business Type:Lab/Research institutions

    Tel:+86-571-85134551

    Address:No. 206 Zhen Hua Road, Hangzhou 310030, Zhejiang, China

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    103-76-4

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    103-76-4

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    103-76-4

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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

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

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Consensus Reports

Reported in EPA TSCA Inventory.

Specification

The 1-(2-Hydroxyethyl)piperazine with CAS registry number of 103-76-4 is also known as (b-Hydroxyethyl)piperazine. The IUPAC name is 2-Piperazin-1-ylethanol. It belongs to product categories of Piperaizine. Its EINECS registry number is 203-142-3. In addition, the formula is C6H14N2O and the molecular weight is 130.19. This chemical is a clear colorless to pale yellow oily liquid that miscible with water. It may cause inflammation to the skin or other mucous membranes and should be sealed in ventilated, cool, dry place away from fire, heat, oxidants. What's more, this chemical is used as for organic synthesis.

Physical properties about 1-(2-Hydroxyethyl)piperazine are: (1)ACD/LogP: -0.45; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -3.43; (4)ACD/LogD (pH 7.4): -2.15; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 15.71; (13)Index of Refraction: 1.475; (14)Molar Refractivity: 36.22 cm3; (15)Molar Volume: 128.6 cm3; (16)Polarizability: 14.35×10-24 cm3; (17)Surface Tension: 34.7 dyne/cm; (18)Density: 1.012 g/cm3; (19)Flash Point: 101.9 °C; (20)Enthalpy of Vaporization: 56.01 kJ/mol; (21)Boiling Point: 245 °C at 760 mmHg; (22)Vapour Pressure: 0.00492 mmHg at 25°C; (23)Exact Mass: 130.110613; (24)MonoIsotopic Mass: 130.110613; (25)Topological Polar Surface Area: 35.5; (26)Heavy Atom Count: 9; (27)Complexity: 71.5; (28)Covalently-Bonded Unit Count: 1.

Preparation of 1-(2-Hydroxyethyl)piperazine: it is prepared by reaction of piperazine hexahydrate with ethylene oxide. Firstly, piperazine hexahydrate is dissolved in water, stirred and cooled to 15-20 °C. Then ethylene oxide is passed into solution and reaction occurs at the temperature of 30-35 °C for 2 hours under stirring. At last, product is obtained by cooling, filtration, vacuum distillation and collecting distillate at 145-155 °C (5.33kPa).

Use of 1-(2-Hydroxyethyl)piperazine: it is used to produce (2,3-dihydro-benzo[1,4]dioxin-2-yl)-[4-(2-hydroxy-ethyl)-piperazin-1-yl]-methanone by reaction with 2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid ethyl ester. This reaction occurs at the temperature of 110 °C for 3 hours. The yield is about 98%.

1-(2-Hydroxyethyl)piperazine is used to produce (2,3-dihydro-benzo[1,4]dioxin-2-yl)-[4-(2-hydroxy-ethyl)-piperazin-1-yl]-methanone by reaction with 2,3-dihydro-benzo[1,4]dioxine-2-carboxylic acid ethyl ester.

When you are using this chemical, please be cautious about it. As a chemical, it is irritating to eyes, respiratory system, skin and may have risk of serious damage to eyes. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 

You can still convert the following datas into molecular structure:
1. Canonical SMILES: C1CN(CCN1)CCO
2. InChI: InChI=1S/C6H14N2O/c9-6-5-8-3-1-7-2-4-8/h7,9H,1-6H2
3. InChIKey: WFCSWCVEJLETKA-UHFFFAOYSA-N 

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 oral 3720mg/kg (3720mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: MUSCLE WEAKNESS

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 45(5), Pg. 67, 1980.
mouse LD50 intraperitoneal 100mg/kg (100mg/kg)   National Technical Information Service. Vol. AD277-689,
rabbit LD50 oral 3350mg/kg (3350mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: MUSCLE WEAKNESS

BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 45(5), Pg. 67, 1980.
rabbit LD50 skin > 5mL/kg (5mL/kg)   Union Carbide Data Sheet. Vol. 1/6/1970,
rat LD50 oral 4920uL/kg (4.92mL/kg)   American Industrial Hygiene Association Journal. Vol. 23, Pg. 95, 1962.