21260-54-8

Basic information

• Product Name: 1,1-dibutyl-3-methylurea
• Synonyms: Urea, N,N-dibutyl-N'-methyl-
• CAS NO: 21260-54-8
• Molecular Formula: C₁₀H₂₂N₂O
• Molecular Weight: 186.2945
• Mol File: 21260-54-8.mol
• Article Data: 1

Chemical Properties

• Melting Point: 46.6-48.2 °C(Solv: pentane (109-66-0))
• Boiling Point: 321.3°C at 760 mmHg
• Flash Point: 148.1°C
• Density: 0.9g/cm³
• Vapor Pressure: 0.000301mmHg at 25°C
• Refractive Index: 1.451
• PKA: 14.54±0.46(Predicted)
• CAS DataBase Reference: 1,1-dibutyl-3-methylurea(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-dibutyl-3-methylurea(21260-54-8)
• EPA Substance Registry System: 1,1-dibutyl-3-methylurea(21260-54-8)

Safety Data

• Hazardous Substances Data: 21260-54-8(Hazardous Substances Data)

Upstream product

• 22013-97-4 N-methyl-thiocarbamic acid S-methyl ester 
• 111-92-2 dibutylamine 

Relevant articles and documents

Process to prepare alkyl-ureas from O,S-dimethyl dithiocarbonate

The present invention relates to the preparation of alkyl-ureas, starting from O,S-dimethyl dithiocarbonate, which provides the following steps: A) causing the O,S-dimethyl dithiocarbonate to react with a primary amine of general formula R1NH2in order to obtain an O-methyl thiocarbamate; B) isomerising the O-methyl thiocarbamate in order to obtain an S-methyl thiocarbamate; C) causing the S-methyl thiocarbamate with a compound of general formula R′R″NH, wherein R′ and R″ may be equal or different one in respect of the other and of R1and may be H, R2or R3, in order to obtain one of the alkyl-ureas of formula (4), (5) or (6).