10-(4-Formyl-1-piperazinyl)-4H-thieno(3,4-b)(1,5)benzodiazepine-4-carboxaldehyde 4H-Thieno(3,4-b)(1,5)benzodiazepine-4-carboxaldehyde, 10-(4-formyl-1-piperazinyl)- 74137-80-7