| Identification | More | [Name]
Methylurea | [CAS]
598-50-5 | [Synonyms]
1-METHYLUREA
METHYLCARBAMIC AMIDE
METHYLUREA
MONOMETHYLUREA
N-METHYLUREA
CH3NHCONH2
methylcarbamide
methylharnstoff
Methylmocovina
methyl-ure
Methyturea
urea,methyl-
Methylurea,98%
1-methylurea 500-3,000lb
Mono-methylharnstoff
1-Methylisourea | [EINECS(EC#)]
209-935-0 | [Molecular Formula]
C2H6N2O | [MDL Number]
MFCD00007950 | [Molecular Weight]
74.08 | [MOL File]
598-50-5.mol |
| Chemical Properties | Back Directory | [Appearance]
white to off-white crystalline solid | [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) | [color ]
White to off-white | [Specific Gravity]
1.204 | [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]
598-50-5(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R22:Harmful if swallowed.
R68:Possible risk of irreversible effects.
R37:Irritating to the respiratory system.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S22:Do not breathe dust .
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37:Wear suitable protective clothing and gloves . | [WGK Germany ]
3
| [RTECS ]
YT7175000
| [TSCA ]
Yes | [HS Code ]
29241900 |
| Raw materials And Preparation Products | Back Directory | [Preparation Products]
Theobromine-->3-Methylxanthine-->5,6-Diamino-1-methyluracil-->16beta-Methyl-16alpha,17alpha-epoxypregnenolone-->finishing agent ED for pernyl silk-->16,17-Epoxy-3-hydroxy-16-methyl-pregn-9(11)-ene-20-one-3-acetate-->16,17-Epoxy-16-methyl pregn-9(11)-en-3-ol-20-one-->6-AMINO-1-METHYL-5-NITROSOURACIL-->16-Methylepihydrocortisone-->6-Amino-1-methyluracil-->3-Acetyloxy-17-hydroxy-16-methylpregn-5-en-20-one-->3-Acetyloxy-16,17-epoxy-16-methylpregn-5-en-20-one-->17,21-Dihydroxy-16α-methylpregna-1,4,9(11)-triene-3,20-dione 21-Acetate-->21-Acetyloxy-17-hydroxy-16-methylpregn-4-ene-3,20-dione-->3beta,17-dihydroxy-16alpha-methylpregn-5-en-20-one-->16-methyl-20-oxopregna-5,16-dien-3-beta-yl acetate-->3-(2,3-DIHYDROBENZOFURAN-5-YL)PROPANOIC ACID-->17,21-dihydroxy-16alpha-methylpregna-4,9(11)-diene-3,20-dione 21-acetate-->Methanimidamide, N,N'-bis[(methylamino)carbonyl]--->3,17-Dihydroxy-16-methylpregna-5,15-diene-20-one 3-acetate-->2,4,6(1H,3H,5H)-Pyrimidinetrione, 1-methyl-5-phenyl- |
| Hazard Information | Back Directory | [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. | [Definition]
ChEBI: A member of the class of ureas that is urea substituted by a methyl group at one of the nitrogen atoms. | [Production Methods]
Methylurea is produced on an
industrial scale by passing monomethylamine
into a urea melt. | [Purification Methods]
Crystallise the urea from EtOH/water, then dry it under vacuum at room temperature. [Beilstein 4 IV 205.] |
|
|