Product Name

  • Name

    2-HYDROXYETHYLUREA

  • EINECS 640-848-4
  • CAS No. 2078-71-9
  • Article Data17
  • CAS DataBase
  • Density 1.222 g/cm3
  • Solubility almost transparency
  • Melting Point 164-169 °C
  • Formula C3H8N2O2
  • Boiling Point 254.324 °C at 760 mmHg
  • Molecular Weight 104.109
  • Flash Point 107.612 °C
  • Transport Information
  • Appearance White crystalline powder
  • Safety 26-36/37/39
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 2078-71-9 (2-HYDROXYETHYLUREA)
  • Hazard Symbols
  • Synonyms Urea,(2-hydroxyethyl)- (6CI,7CI,8CI,9CI);(2-Hydroxyethyl)urea;(b-Hydroxyethyl)urea;1-(2-Hydroxyethyl)urea;Hydrovance;Monoethanolurea;Monoethylolurea;N-(2-Hydroxyethyl)urea;N-(b-Hydroxyethyl)urea;NSC 1127;
  • PSA 75.35000
  • LogP -0.26180

Synthetic route

<2-(trimethylsilyloxy)ethyl>urea
75226-85-6

<2-(trimethylsilyloxy)ethyl>urea

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
With methanol; water for 1h; Heating;100%
N-<2-(trimethylsiloxy)ethyl>-N'-(trimethylsilyl)urea
75226-87-8

N-<2-(trimethylsiloxy)ethyl>-N'-(trimethylsilyl)urea

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
With methanol; water for 1h; Heating;100%
nitrourea
556-89-8

nitrourea

ethanolamine
141-43-5

ethanolamine

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
In ethanol for 48h;85%
potassium cyanate
590-28-3

potassium cyanate

ethanolamine
141-43-5

ethanolamine

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
Stage #1: potassium cyanate; ethanolamine In water for 0.333333h; Heating;
Stage #2: With hydrogenchloride In water at 20℃; for 7h;
80%
With hydrogenchloride In water
ethanolamine
141-43-5

ethanolamine

urea
57-13-6

urea

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
With ammonia In formic acid at 115℃; for 3.5h; Temperature; Industrial scale;78%
In N,N-dimethyl-formamide at 105℃; for 24h;
2-amino-ethanol hydrochloride
2002-24-6

2-amino-ethanol hydrochloride

potassium cyanide
151-50-8

potassium cyanide

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
In water at 85 - 90℃; for 1h;68%
In water
oxirane
75-21-8

oxirane

urea
57-13-6

urea

A

dimethylenecyclourethane
497-25-6

dimethylenecyclourethane

B

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

C

carbamic acid-(2-amino-ethyl ester)
142-27-8

carbamic acid-(2-amino-ethyl ester)

Conditions
ConditionsYield
at 136℃;
oxirane
75-21-8

oxirane

urea
57-13-6

urea

A

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

B

carbamic acid-(2-amino-ethyl ester)
142-27-8

carbamic acid-(2-amino-ethyl ester)

Conditions
ConditionsYield
at 136℃;
2,4-imidazolidinedione
461-72-3

2,4-imidazolidinedione

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
With sodium tetrahydroborate In ethanol
potassium cyanate
590-28-3

potassium cyanate

hydrochloride of β-oxy-ethylamine

hydrochloride of β-oxy-ethylamine

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

2-amino-ethanol hydrochloride
2002-24-6

2-amino-ethanol hydrochloride

sodium cyanate

sodium cyanate

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

Conditions
ConditionsYield
mit hilfe eines Ionen-Austauschers;
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

bis(tri-n-butyltin)oxide
56-35-9

bis(tri-n-butyltin)oxide

N-(tributylstannyl)-N'-(2-(tributylstannyloxy)ethyl)urea
104585-96-8

N-(tributylstannyl)-N'-(2-(tributylstannyloxy)ethyl)urea

Conditions
ConditionsYield
In neat (no solvent) byproducts: H2O; at 160-190°C, evacuation down to 2mm for 1 h; elem. anal.;95%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

C17H16N2O3

C17H16N2O3

C20H22N4O4

C20H22N4O4

Conditions
ConditionsYield
With hydrogenchloride; water In isopropyl alcohol for 0.333333h; Reflux; regioselective reaction;93%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

1,3-dimethyl-4,5-dihydroxy-4,5-diphenylimidazolidin-2-one
66242-64-6

1,3-dimethyl-4,5-dihydroxy-4,5-diphenylimidazolidin-2-one

C20H22N4O3

C20H22N4O3

Conditions
ConditionsYield
With hydrogenchloride In methanol; water for 1h; Reflux;90%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

4,5-dihydroxy-1,3-diethyl-4,5-diphenylimidazolidine-2-thione
924851-22-9

4,5-dihydroxy-1,3-diethyl-4,5-diphenylimidazolidine-2-thione

4,6-diethyl-1-(2-hydroxyethyl)-3a,6a-diphenyl-5-thioxooctahydroimidazo[4,5-d]imidazol-2-one
1346780-34-4

4,6-diethyl-1-(2-hydroxyethyl)-3a,6a-diphenyl-5-thioxooctahydroimidazo[4,5-d]imidazol-2-one

Conditions
ConditionsYield
With hydrogenchloride In methanol; water for 2h; Reflux;90%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

1-ethyl-5-hydroxy-4,5-diphenyl-1H-imidazol-2(5H)-one

1-ethyl-5-hydroxy-4,5-diphenyl-1H-imidazol-2(5H)-one

1-ethyl-6-(2-hydroxyethyl)-3a,6a-diphenyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione

1-ethyl-6-(2-hydroxyethyl)-3a,6a-diphenyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione

Conditions
ConditionsYield
With hydrogenchloride In water; acetonitrile for 0.333333h; Reflux; regioselective reaction;76%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

5-hydroxy-4,5-diphenyl-1-propyl-1H-imidazol-2(5H)-one

5-hydroxy-4,5-diphenyl-1-propyl-1H-imidazol-2(5H)-one

1-(2-hydroxyethyl)-3a,6a-diphenyl-6-propyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione

1-(2-hydroxyethyl)-3a,6a-diphenyl-6-propyltetrahydroimidazo[4,5-d]imidazole-2,5(1H,3H)-dione

Conditions
ConditionsYield
With hydrogenchloride In water; acetonitrile for 0.333333h; Reflux; regioselective reaction;74%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

4,4'-dimethoxybenzoin
119-52-8

4,4'-dimethoxybenzoin

1-(2-hydroxyethyl)-4,5-bis(4-methoxyphenyl)-1H-imidazol-2(3H)-one

1-(2-hydroxyethyl)-4,5-bis(4-methoxyphenyl)-1H-imidazol-2(3H)-one

Conditions
ConditionsYield
With ethylene glycol at 160℃; for 1h;70%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

4,5-dihydroxy-1,3-dimethyl-4,5-diphenyltetrahydroimidazole-2-thione
1195504-76-7

4,5-dihydroxy-1,3-dimethyl-4,5-diphenyltetrahydroimidazole-2-thione

1-(2-hydroxyethyl)-4,6-dimethyl-3a,6a-diphenyl-5-thioxooctahydroimidazo[4,5-d]imidazol-2-one
1346780-20-8

1-(2-hydroxyethyl)-4,6-dimethyl-3a,6a-diphenyl-5-thioxooctahydroimidazo[4,5-d]imidazol-2-one

Conditions
ConditionsYield
With hydrogenchloride In methanol; water for 2h; Reflux;68%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

benzil
134-81-6

benzil

C20H22N4O4

C20H22N4O4

Conditions
ConditionsYield
With hydrogenchloride; water In isopropyl alcohol for 2h; Reflux; regioselective reaction;68%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

6-amino-1-β-hydroxyethyluracil
56075-69-5

6-amino-1-β-hydroxyethyluracil

Conditions
ConditionsYield
With sodium In ethanol for 10h; Heating;67%
With sodium In ethanol Cooling with ice; Reflux;59.4%
With ethanol; sodium ethanolate
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

4,5-dihydroxy-2-imidazolidinone
3720-97-6

4,5-dihydroxy-2-imidazolidinone

(1R*,5S*)-2-(2-hydroxyethyl)-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione

(1R*,5S*)-2-(2-hydroxyethyl)-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione

Conditions
ConditionsYield
With hydrogenchloride In water for 1h; pH=1 - 2; Heating;55%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

4,5-dihydroxy-2-imidazolidinone
3720-97-6

4,5-dihydroxy-2-imidazolidinone

A

2,4-imidazolidinedione
461-72-3

2,4-imidazolidinedione

B

2-(2-hydroxyethyl)-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione
125577-52-8

2-(2-hydroxyethyl)-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione

Conditions
ConditionsYield
With hydrogenchloride In water at 85℃; for 1h; pH=1 - 2;A n/a
B 55%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

1-benzyl-3,5-dichloro-6-methylpyrazin-2(1H)-one
173200-35-6

1-benzyl-3,5-dichloro-6-methylpyrazin-2(1H)-one

1-(4-benzyl-6-chloro-5-methyl-3-oxo-3,4-dihydropyrazin-2-yl)-3-(2-hydroxyethyl)urea

1-(4-benzyl-6-chloro-5-methyl-3-oxo-3,4-dihydropyrazin-2-yl)-3-(2-hydroxyethyl)urea

Conditions
ConditionsYield
With palladium diacetate; caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In 1,2-dimethoxyethane at 80 - 100℃; Microwave irradiation;50%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

2,2-dimethylpenta-3,4-dienal oxime
913260-88-5

2,2-dimethylpenta-3,4-dienal oxime

benzaldehyde
100-52-7

benzaldehyde

N-[2-({3,3-dimethyl-1-oxido-5-[(E)-2-(phenyl)vinyl]-3,4-dihydro-2H-pyrrol-2-yl}oxy)ethyl]urea
1376476-82-2

N-[2-({3,3-dimethyl-1-oxido-5-[(E)-2-(phenyl)vinyl]-3,4-dihydro-2H-pyrrol-2-yl}oxy)ethyl]urea

Conditions
ConditionsYield
With potassium tert-butylate In tert-butyl alcohol at 80℃; for 2.5h; Inert atmosphere;46%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

3-Nitrosooxazolidin-2-one
38347-74-9

3-Nitrosooxazolidin-2-one

Conditions
ConditionsYield
With nitrosylchloride In chloroform42%
With nitrosylchloride In chloroform at 0℃; Product distribution; other reagents;42%
(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

1,1,1,3,3,3-hexamethyl-disilazane
999-97-3

1,1,1,3,3,3-hexamethyl-disilazane

A

trimethylsilyl isocyanate
1118-02-1

trimethylsilyl isocyanate

B

N-<2-(trimethylsiloxy)ethyl>-N'-(trimethylsilyl)urea
75226-87-8

N-<2-(trimethylsiloxy)ethyl>-N'-(trimethylsilyl)urea

Conditions
ConditionsYield
With sulfuric acid at 120 - 152℃; for 6h;A 39%
B 36%
methanol
67-56-1

methanol

(2-hydroxyethyl)urea
2078-71-9

(2-hydroxyethyl)urea

benzil
134-81-6

benzil

C18H18N2O3

C18H18N2O3

C20H22N4O4

C20H22N4O4

Conditions
ConditionsYield
With hydrogenchloride; water for 2h; Reflux; diastereoselective reaction;A 38%
B 14%

2-Hydroxyethylurea Specification

The Urea,N-(2-hydroxyethyl)- with CAS registry number 2078-71-9 belongs to the classes of Carbonyl Compounds; Organic Building Blocks; Ureas. The IUPAC name is 1-(2-hydroxyethyl)urea. In addition, the molecular formula is C3H8N2O2 and the molecular weight is 104.108.

Physical properties about this chemical are: (1)ACD/LogP: -1.86; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.86; (4)ACD/LogD (pH 7.4): -1.86; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 2.33; (8)ACD/KOC (pH 7.4): 2.33; (9)#H bond acceptors: 4; (10)#H bond donors: 4; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 32.78 Å2; (13)Index of Refraction: 1.49; (14)Molar Refractivity: 24.64 cm3; (15)Molar Volume: 85.1 cm3; (16)Polarizability: 9.76×10-24cm3; (17)Surface Tension: 53.4 dyne/cm; (18)Density: 1.222 g/cm3; (19)Flash Point: 107.6 °C; (20)Enthalpy of Vaporization: 57.13 kJ/mol; (21)Boiling Point: 254.3 °C at 760 mmHg; (22)Vapour Pressure: 0.00266 mmHg at 25°C.

Preparation of Urea,N-(2-hydroxyethyl)-: it can be prepared by Ethanolamine and Carbamide. You can add the diethanolamine into the reaction pot at first, then add the ureawith with stirring. You should heat the mixture to 110-115 °C for 4 hours, cool the product at last.

Uses of Urea,N-(2-hydroxyethyl)-: it can be used for the intermediate of Furazolidone. And it can be used to produce 3-nitroso-oxazolidin-2-one. This reaction will need reagent NOCl and solvent CHCl3. The yield is about 42% at reaction temperature of 0 °C.

Urea,N-(2-hydroxyethyl)- can be used to produce 3-nitroso-oxazolidin-2-one

When you are using this chemical, please be cautious about it as the following:
It irritates to eyes, respiratory system and skin. When use it, you should wear suitable protective clothing, gloves and eye/face protection. If contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(N)NCCO
(2)InChI: InChI=1/C3H8N2O2/c4-3(7)5-1-2-6/h6H,1-2H2,(H3,4,5,7)
(3)InChIKey: CLAHOZSYMRNIPY-UHFFFAOYAJ

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LDLo intraperitoneal 7280mg/kg (7280mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Journal of Pharmacology and Experimental Therapeutics. Vol. 54, Pg. 188, 1935

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