1,3-Dimethylurea
Chemical compound
From Wikipedia, the free encyclopedia
1,3-Dimethylurea (DMU) is a urea derivative and used as an intermediate in organic synthesis. It is a colorless crystalline powder with little toxicity.
| |
 | |
| Names | |
|---|---|
| IUPAC name
1,3-Dimethylurea | |
| Preferred IUPAC name
N,Nâ²-Dimethylurea | |
| Other names
sym-Dimethylurea | |
| Identifiers | |
3D model (JSmol) |
|
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.002.272 |
| EC Number |
|
| KEGG | |
| MeSH | 1,3-dimethylurea |
PubChem CID |
|
| RTECS number |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| |
| |
| Properties | |
| C3H8N2O | |
| Molar mass | 88.110 g·molâ1 |
| Appearance | Colorless, waxy crystals |
| Odor | Odorless |
| Density | 1.142 g mLâ1 |
| Melting point | 104.4 °C; 219.8 °F; 377.5 K |
| Boiling point | 269.1 °C; 516.3 °F; 542.2 K |
| 765 g Lâ1 | |
| â55.1·10â6 cm3/mol | |
| Thermochemistry | |
Std enthalpy of formation (ÎfH⦵298) |
â312.1 to â312.1 kJ molâ1 |
Std enthalpy of combustion (ÎcH⦵298) |
â2.0145 to â2.0089 MJ molâ1 |
| Hazards | |
| GHS labelling: | |
| H373 | |
| P260, P314, P501 | |
| Flash point | 157 °C (315 °F; 430 K) |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
4 g kgâ1 (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).
| |
Uses
1,3-Dimethylurea is used for synthesis of caffeine, theophylline, pharmaceuticals, textile aids, herbicides and others.[1] 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.