10H-Thieno(2,3-b)(1,5)benzodiazepine, 2-ethyl-4-(4-methyl-1-piperazinyl)-7-(methylsulfonyl)- 2-Ethyl-4-(4-methyl-1-piperazinyl)-7-(methylsulfonyl)-10H-thieno(2,3-b)(1,5)benzodiazepine 74162-47-3 BRN 5642780