Urethane
SIGMA/U2500 - ≥99%
Synonym: Carbamic acid ethyl ester; Ethyl carbamate; Ethylurethane
CAS Number: 51-79-6
Empirical Formula (Hill Notation): C3H7NO2
Molecular Weight: 89.09
EC Number: 200-123-1
MDL Number: MFCD00007966
Linear Formula: NH2COOC2H5
Product Type: Chemical
| assay | ≥99% |
| bp | 182-184 °C (lit.) |
| InChI | 1S/C3H7NO2/c1-2-6-3(4)5/h |
| InChI key | JOYRKODLDBILNP-UHFFFAOYSA |
| mp | 48-50 °C (lit.) |
| Quality Level | 200 ![]() |
| SMILES string | CCOC(N)=O |
| vapor density | 3.07 (vs air) |
| vapor pressure | 10 mmHg ( 77.8 °C) |
| Application: |
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| Packaging: | 100, 250, 500 g in poly bottle |
| Symbol | ![]() GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H302 - H350 |
| Precautionary statements | P201 - P202 - P264 - P270 - P301 + P312 - P308 + P313 |
| Hazard Codes | T |
| Risk Statements | 45-22 |
| Safety Statements | 53-45 |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 197.6 °F - closed cup |
| Flash Point(C) | 92 °C - closed cup |
| Purity | ≥99% |
| bp | 182-184 °C (lit.) |
| mp | 48-50 °C (lit.) |
| UNSPSC | 12352111 |



