Acetophenone /(-fē"nōn)/

Ac·e·to·phe·none

Acetophenone

n.
  1. A crystalline ketone, CH3.CO.C6H5, which may be obtained by the dry distillation of a mixture of the calcium salts of acetic and benzoic acids. It is used as a hypnotic under the name of hypnone. (Chem.)