1-(5-(4-Methyl-1-piperazinyl)-10H-thieno(2,3-b)(1,4)benzodiazepin-2-yl)ethanone 74162-56-4 BRN 5629526 Ethanone, 1-(5-(4-methyl-1-piperazinyl)-10H-thieno(2,3-b)(1,4)benzodiazepin-2-yl)-