2-Methyl-11-(2-(4-methylpiperazino)ethoxy)-6,11-dihydrodibenzo(b,e)thiepin bis(maleate) 96122-28-0 Piperazine, 1-(2-((6,11-dihydro-2-methyldibenzo(b,e)thiepin-11-yl)oxy)ethyl)-4-methyl-, (Z)-2-butenedioate (1:2)