Methyl cyanoacetate is an organic compound containing an active methylene group, with the chemical formula C₄H₅NO₂. It features both a nitrile functional group and an ester functional group, existing as a colorless liquid at room temperature. This compound can be prepared by esterifying cyanoacetic acid with methanol or by the cyanation reaction of methyl chloroacetate.
| Chemical Name | Methyl cyanoacetate |
| Chemical Formula | C4H5NO2 |
| CAS | 105-56-6 |
| Appearance | Colorless liquid |
| Melting point | -22℃ |
| Boiling point | 208-210℃ |
| Density（ρ20）, g/cm³ | 1.063 |
| Molecular Weight | 113.115 |
| Solubility | Slightly soluble in water, soluble in alkaline solutions and ammonia water, miscible with ethanol and diethyl ether |
Primarily used as an intermediate in organic synthesis, pharmaceuticals, and dyes
Store in a cool, well-ventilated warehouse. Keep away from sources of ignition and heat. Store separately from oxidizing agents; do not store together. Equip with appropriate types and quantities of firefighting equipment. The storage area should be equipped with emergency leak response equipment and suitable containment materials. This product is flammable and toxic; keep away from sources of ignition during storage and transportation.
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