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Acetone cyanohydrin

Acetone cyanohydrin


IUPAC name	2-hydroxy-2-methyl-propanenitrile
Identifiers
CAS number	75-86-5
PubChem	6406
SMILES	CC(C)(C#N)O
Properties
Molecular formula	C₄H₇NO
Molar mass	85.1045 g/mol
Density	0.932 g/cm³
Melting point	−19 °C
Boiling point	95 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Acetone cyanohydrin is an organic compound used in the production of methyl methacrylate, the monomer of the transparent plastic polymethyl methacrylate (PMMA), also known as acrylic.

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Acetone cyanohydrin is classified as an extremely hazardous substance in the US Emergency Planning and Community Right-to-Know Act.

The principal hazards of acetone cyanohydrin are due to its ready decomposition into acetone and the highly toxic hydrogen cyanide: it rapidly decomposes on contact with water.