Acetonitrile is the chemical compound with the formula CH3CN. This colorless liquid is the simplest organic nitrile (hydrogen cyanide is a simpler nitrile, but the cyanide anion is not classed as organic). It is produced mainly as a byproduct of acrylonitrile manufacture. It is used as a polar aprotic solvent in organic synthesis and in the purification of butadiene.

Substance name:acetonitrile
Trade name:Acetonitrile
EC no:200-835-2
CAS no:75-05-8
HS code:29269095
Formula:C2H3N
Synonyms:ACE / acetic acid nitrile / Acetonitrile / ACN (=acetonitrile) / cyanomethane / DNA synthesis reagents #13 / DNA synthesis reagents #16 / DNA synthesis reagents #18 / ethane nitrile / ethyl nitrile / methane carbonitrile / methane, cyano- / methyl cyanide / phosphoramidite solvent / protein sequencer reagent R5 / RCRA waste number U003 / solvent B / USAF EK 488