A colorless, toxic gas with a pungent odor, composed of two carbon atoms and two nitrogen atoms (C2N2), used in the production of synthetic rubber and other chemicals.

The laboratory was evacuated due to a leak of cyanogen, which posed a significant health risk.

The univalent radical —CN, especially as part of salts, esters, or other compounds of hydrocyanic acid.

Cyanogen is present in many organic molecules as the —CN group.

cyanogenadjective

Relating to or containing the cyanogen radical.

Cyanogen compounds are often highly toxic.