49540-32-1

Basic information

• Product Name: 1,3-diethyl-1-nitrosourea
• Synonyms: 1,3-diethyl-1-nitrosourea;NITROSODIETHYLUREA
• CAS NO: 49540-32-1
• Molecular Formula: C₅H₁₁N₃O₂
• Molecular Weight: 145.19
• Mol File: 49540-32-1.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 264.27°C (rough estimate)
• Flash Point: °C
• Appearance: /
• Density: 1.2598 (rough estimate)
• Refractive Index: 1.6600 (estimate)
• CAS DataBase Reference: 1,3-diethyl-1-nitrosourea(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-diethyl-1-nitrosourea(49540-32-1)
• EPA Substance Registry System: 1,3-diethyl-1-nitrosourea(49540-32-1)

Safety Data

• Hazardous Substances Data: 49540-32-1(Hazardous Substances Data)

Usage

Safety Profile

Questionable carcinogen withexperimental tumorigenic data. Mutation data reported.When heated to decomposition it emits toxic vapors ofNOx.

InChI:InChI=1/C5H11N3O2/c1-3-6-5(9)8(4-2)7-10/h3-4H2,1-2H3,(H,6,9)

Upstream product

• 634-95-7 N,N-diethylurea 
• 105-55-5 N,N'-diethylthiourea 
• 623-76-7 N,N'-diethylurea 
• 7782-77-6 cis-nitrous acid 

Downstream Products

• 624-80-6 ethylhydrazine 
• 74-85-1 ethene 
• 109-90-0 ethyl isocyanate 

Relevant articles and documents

Kinetic study of the nitrosation of 1,3-dialkylureas in aqueous-perchloric acid medium

The kinetics of the nitrosation of 1,3-dimethyl (DMU), 1,3-diethyl (DEU), 1,3-dipropylurea (DPU), 1,3-dibuthyl (DBU), and 1,3-diallylurea (DAU) were studied in a conventional UV/vis spectrophotometer in aqueous-perchloric acid media. The kinetic study was carried out using the initial rate method. The reaction rate observed was r = k[H+]2/[H+] + Ka [Diurea][Nitrite] where Ka is the acidity constant of nitrous acid. The diureas exhibited the reactivity order DMU ? DEU > DPU > DAU, which can be interpreted as a function of the steric impediment generated by the R alkyl group in the rate controlling step. A probable relationship between both the chemical reactivity and structure of the nitrosable substrate with the biological activity of the N-nitroso compounds generated is proposed.