What is "phenacyl bromide"

n. (context organic compound English) A colourless solid with chemical formula C₆H₅C(O)CH₂Br, a powerful lachrymator and a useful precursor to other organic compounds, prepared by bromination of acetophenone.

Phenacyl bromide is the organic compound with the formula CHC(O)CHBr. This colourless solid is a powerful lachrymator as well as a useful precursor to other organic compounds.

It is prepared by bromination of acetophenone:

The compound was first reported in 1871.