Synonyms: 2H-1,4-Benzodiazepin-2-one,7-chloro-5-(p-chlorophenyl)-1,3-dihydro-1-methyl- (7CI,8CI); 4'-Chlorodiazepam;7-Chloro-1-methyl-5-(p-chlorophenyl)-3H-1,4-benzodiazepin-2(1H)-one;7-Chloro-5-(4-chlorophenyl)-1,3-dihydro-1-methyl-2H-1,4-benzodiazepin-2-one;Chlordiazepam; Ro 05-4864; Ro 5-4864