|Molar mass||133.15 g mol−1|
|Density||1.117 g/mL at 25 °C|
|Melting point||28 to 30 °C (82 to 86 °F; 301 to 303 K)|
|Boiling point||17 to 0 °C (63 to 32 °F; 290 to 273 K)|
|R-phrases||R23/24/25 R36/37/38 R41|
|S-phrases||S22 S26 S36/37/39 S45|
|Flash point||113 °C (235 °F; 386 K)|
|mandelic acid, phenylacetonitrile|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is: / ?)(|
The naturally-occurring (R)-(+) enantiomer finds use as an intermediate in the preparation of optically active α-hydroxy carboxylic acids, α-hydroxy aldehydes, α-hydroxy ketones, and 2-amino alcohols.
Racemic mandelonitrile may be prepared similar to many other cyanohydrins. In a one pot reaction, benzaldehyde is reacted with sodium bisulfite to give the corresponding adduct, which further reacts with aqueous sodium cyanide to give the racemic product: