(+)-(S)-5-(o-Chlorophenyl)-1,3-dihydro-3-methyl-7-nitro-2H-1,4-benzodiazepin-2-one 2H-1,4-Benzodiazepin-2-one, 5-(2-chlorophenyl)-1,3-dihydro-3-methyl-7-nitro-, (S)- 58662-84-3 Meclonazepam Meclonazepam [INN] Meclonazepam, (S)-isomer Meclonazepamum [INN-Latin] Ro 113128