1,3-Dimethylurea
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| 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 Edit this at Wikidata |
| 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 | 88.110g·mol−1 |
| Appearance | Colorless, waxy crystals |
| Odor | Odorless |
| Density | 1.142 g mL−1 |
| Melting point | 104.4°C; 219.8°F; 377.5K |
| Boiling point | 269.1°C; 516.3°F; 542.2K |
| 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; 430K) |
| 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], 100kPa).
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Chemical compound
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.
Uses
[edit ]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.
References
[edit ]- ↑ http://www.inchem.org/documents/sids/sids/96311.pdf Archived 2015年09月24日 at the Wayback Machine SIDS Initial Assessment Report