55038-75-0 8-Isopropyl-10-(4-methylpiperazino)-10,11-dihydrodibenzo(b,f)thiepin dimethanesulfonate Piperazine, 1-(10,11-dihydro-8-(1-methylethyl)dibenzo(b,f)thiepin-10-yl)-4-methyl-, dimethanesulfonate