1,3-Dimethylurea
| Names | |
|---|---|
| IUPAC name
 1,3-Dimethylurea  | |
| Preferred IUPAC name
 N,N′-Dimethylurea  | |
| Other names
 sym-Dimethylurea  | |
| Identifiers | |
3D model (JSmol)  | 
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| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.002.272 | 
| EC Number | 
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| KEGG | |
| MeSH | 1,3-dimethylurea | 
PubChem CID  | 
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| RTECS number | 
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| UNII | |
CompTox Dashboard (EPA)  | 
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| 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 to −312.1 kJ mol−1 | 
Std enthalpy of combustion (ΔcH⦵298)  | 
−2.0145 to −2.0089 MJ mol−1 | 
| 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 kg−1 (oral, rat) | 
| Related compounds | |
Related ureas  | 
Carmustine | 
Related compounds  | 
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). 
Infobox references  | |
1,3-Dimethylurea (DMU) is a urea derivative and is used in agriculture mainly as a component in fertilizers and soil treatments, primarily to improve nitrogen utilization and promote more efficient plant growth. It is a colorless crystalline powder with little toxicity.