Dimethylurea

Dimethylurea (DMU) (IUPAC systematic name: 1,3-Dimethylurea ) is a urea derivative and used as an intermediate in organic synthesis. It is a colorless crystalline powder with little toxicity.

Dimethylurea
Names
IUPAC name
1,3-Dimethylurea[1]
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.002.272
KEGG
MeSH 1,3-dimethylurea
RTECS number
  • YS9868000
UNII
Properties
C3H8N2O
Molar mass 88.110 g·mol−1
Appearance Colorless, waxy crystals
Odor Odorless
Density 1.142 g mL−1
Melting point 104.4 °C; 219.8 °F; 377.5 K
Boiling point 269.1 °C; 516.3 °F; 542.2 K
765 g L−1
-55.1·10−6 cm3/mol
Thermochemistry
Std enthalpy of
formation (ΔfH⦵298)
 −312.1–−312.1 kJ mol−1
Std enthalpy of
combustion (ΔcH⦵298)
 −2.0145–−2.0089 MJ mol−1
Hazards
R-phrases (outdated) H373[1]
R22, R24/25
S-phrases (outdated) P260, P314, P501H373[1]
Flash point 157 °C (315 °F; 430 K)
Lethal dose or concentration (LD, LC):
4 g kg−1 (oral, rat)
Related compounds
Related ureas
 Carmustine
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Uses

1,3-Dimethylurea is used for synthesis of caffeine, theophylline, pharmachemicals, textile aids, herbicides and others.[2] In the textile processing industry 1,3-dimethylurea is used as intermediate for the production of formaldehyde-free easy-care finishing agents for textiles. The estimated world production of DMU is estimated to be less than 25,000 tons.

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References
  1. "1,3-dimethylurea - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification. Retrieved 10 April 2012.
  2. http://www.inchem.org/documents/sids/sids/96311.pdf SIDS Initial Assessment Report
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