O-4-[(EZ)-(4-chlorophenyl)azo]phenyl O,O-dimethyl phosphorothioate, Alamos, EINECS 227-419-3, Slam, (4-chlorophenyl)-(4-dimethoxyphosphinothioyloxyphenyl)diazene, O-[4-[(4-chlorophenyl)azo]phenyl] O,O-dimethyl phosphorothioate, Caswell No. 206A, O-4-[(Ξ)-(4-chlorophenyl)diazenyl]phenyl O,O-dimethyl phosphorothioate, L 1058, Azothoate