Methyl cyanoformate
ALDRICH/319813 - 99%
Synonym: 2-
CAS Number: 17640-15-2
Empirical Formula (Hill Notation): C3H3NO2
Molecular Weight: 85.06
EC Number: 241-626-6
MDL Number: MFCD00013420
Linear Formula: NCCO2CH3
Product Type: Chemical
| assay | 99% |
| bp | 100-101 °C (lit.) |
| density | 1.072 g/mL at 25 °C (lit.) |
| form | liquid |
| functional group | ester |
| nitrile | |
| InChI | 1S/C3H3NO2/c1-6-3(5)2-4/h |
| InChI key | OBWFJXLKRAFEDI-UHFFFAOYSA |
| Quality Level | 100 ![]() |
| refractive index | n |
| SMILES string | COC(=O)C#N |
| Application: | Selective acylating reagent. |
| General description: | Methyl cyanoformate is an organic compound that is commonly used as a source of the methoxycarbonyl group in organic synthesis. It is most frequently used as a reagent to synthesize regioselective β-keto esters via C-acylation of lithium enolates. In comparison with more traditional reagents such as acyl halides, anhydrides, and carbon dioxide, it is regarded as a superior acylating agent. |
| Packaging: | 5, 25 g in glass bottle |
| Symbol | ![]() GHS02,GHS06 |
| Signal word | Danger |
| Hazard statements | H226 - H300 + H310 + H330 - H315 - H319 |
| Precautionary statements | P210 - P262 - P280 - P301 + P310 + P330 - P302 + P352 + P310 - P304 + P340 + P310 |
| Hazard Codes | T+ |
| Risk Statements | 10-26/27/28-36/38 |
| Safety Statements | 26-28-36/37-45 |
| RIDADR | UN 3275 3(6.1) / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 78.8 °F - closed cup |
| Flash Point(C) | 26 °C - closed cup |
| Purity | 99% |
| bp | 100-101 °C (lit.) |
| Density | 1.072 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352100 |



