英文别名Delorazepam 4-Oxide; 7-CHLORO-2-OXO-5-(2-CHOLROPHENYL)1,4-BENZODIAZEPINE-4-OXIDE; 7-Chloro-5-(2-chlorophenyl)-2,3-dihydro-1H-1,4-benzodiazepin-2-one 4-oxide; 7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one 4-Oxide; 7-chloro-5-(2-chlorophenyl)-2-oxo-2,3-dihydro-1H-benzo[e][1,4]diazepine 4-oxide; Lorazepam EP Impurity B; 7-CHLORO-5-(2-CHLORO-PHENYL)-4-OXY-1,3-DIHYDRO-BENZO[E][1,4]DIAZEPIN-2-ONE 
