Methylurea Chemical Properties

Melting point:

~93 °C

Boiling point:

131.34°C (rough estimate)

Density 

1.2040

vapor pressure 

0.003-0.005Pa at 20-23.3℃

refractive index 

1.4264 (estimate)

storage temp. 

Sealed in dry,Room Temperature

solubility 

1000g/l (Lit.)

form 

Crystalline Solid

pka

14.38±0.46(Predicted)

Specific Gravity

1.204

color 

White to off-white

PH

6.7 (50g/l, H2O, 20℃)

Water Solubility 

1000 g/L (20 ºC)

BRN 

878189

InChIKey

XGEGHDBEHXKFPX-UHFFFAOYSA-N

LogP

-1.16 at 25℃ and pH7.7

CAS DataBase Reference

598-50-5(CAS DataBase Reference)

NIST Chemistry Reference

Urea, methyl-(598-50-5)

EPA Substance Registry System

Methylurea (598-50-5)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-68-37-20/21/22

Safety Statements 

22-36-45-36/37

WGK Germany 

3

RTECS 

YT7175000

TSCA 

Yes

HS Code 

29241900

MSDS

• Language:English Provider:N-Methylurea
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Methylurea Usage And Synthesis

Chemical Properties

white to off-white crystalline solid

Uses

N-Methylurea is used as a reagent in the synthesis of bis(aryl)(hydroxyalkyl)(methyl)glycoluril derivatives and is a potential byproduct of caffeine.

Production Methods

Methylurea is produced on an industrial scale by passing monomethylamine into a urea melt.

Definition

ChEBI: A member of the class of ureas that is urea substituted by a methyl group at one of the nitrogen atoms.

Purification Methods

Crystallise the urea from EtOH/water, then dry it under vacuum at room temperature. [Beilstein 4 IV 205.]

Methylurea(598-50-5)Related Product Information

• 1,3-Dimethylurea
• 1,3-Dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone
• Urea
• 1-Methylimidazole
• 1-Methylpyrrolidine
• N,N'-Diphenylurea
• Urea formaldehyde
• N-Methyl-2-pyrrolidone
• Hexamethyldisilazane
• N,N'-Methylenebisacrylamide
• 1,1,3,3-Tetramethylurea
• DIRECT YELLOW 50
• Direct Red 23
• Direct Red 75 tetrasodium salt
• PIPERONYL METHYL KETONE
• 1,3-Dichloro-5,5-dimethylhydantoin
• 1,3,5-Tris(2-hydroxyethyl)cyanuric acid
• 1,3-Dimethyl-2-imidazolidinone