10H-Thieno(2,3-b)(1,5)benzodiazepine, 2-ethyl-4-(4-methyl-1-piperazinyl)-7-nitro- 2-Ethyl-4-(4-methyl-1-piperazinyl)-7-nitro-10H-thieno(2,3-b)(1,5)benzodiazepine 74162-45-1 BRN 5648251