o-chlorobenzalmalononitrile

o-chlor·o·benz·al·mal·o·no·ni·trile

(klōr'ō-ben'zal-ma-lon'ō-nī'trīl),
A strong lacrimator that is an ingredient in chemical agents used in riot control.
References in periodicals archive ?
The cadets also get their first exposure to the gas chamber and O-chlorobenzalmalononitrile (CS) gas.