Methyl chloroformate

Methyl chloroformate
Methyl chloroformate[1]
Identifiers
CAS number 79-22-1 YesY
PubChem 6586
Jmol-3D images Image 1
Properties
Molecular formula C2H3ClO2
Molar mass 94.5 g mol−1
Density 1.223 g/mL
Boiling point

70-72 °C

Hazards
EU classification Corrosive CDangerous for the Environment (Nature) NHarmful Xn
R-phrases R34 R50/53
S-phrases (S1/2) S26 S45 S60 S61
Flash point 10 °C
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Methyl chloroformate is the methyl ester of chloroformic acid. It is also known as methyl chlorocarbonate, and is an oily liquid with a colour that is anywhere from yellow to colorless. It is also known for its pungent odour. Methyl chloroformate, if heated, releases phosgene and produces toxic, corrosive fumes if it comes in contact with water.

Methyl chloroformate is used in organic synthesis for the introduction of the methyl ester functionality to a suitable nucleophile.

References