3-(4-Methylpiperazino)-11-phenyl-6,11-dihydrodibenzo(b,e)thiepin maleate hydrate 84964-50-1 Piperazine, 1-(6,11-dihydro-11-phenyldibenzo(b,e)thiepin-3-yl)-4-methyl-, (Z)-2-butenedioate (1:1), hydrate