o-Acetotoluidide, 4'-chloro-2-(diethylamino)-,hydrochloride , its CAS NO. is 77966-47-3, the synonyms are 4'-Chloro-2-(diethylamino)-o-acetotoluidide,hydrochloride ; Acetanilide, 4'-chloro-2-(diethylamino)-2'-methyl-,hydrochloride .