2,5-Dimethoxy-4-cyanoamphetamine
2,5-Dimethoxy-4-cyanoamphetamine (DOCN) is a serotonergic drug of the phenethylamine, amphetamine, and DOx families. It is a DOx derivative with a cyano group (–C≡N) at the 4 position of the molecule.
Source: Wikipedia — 2,5-Dimethoxy-4-cyanoamphetamine (CC BY-SA 4.0)