10-(4-Methylpiperazino)-8-methylthio-10,11-dihydrodibenzo(b,f)thiepin-3-ol maleate Dibenzo(b,f)thiepin-3-ol, 10,11-dihydro-10-(4-methyl-1-piperazinyl)-8-methylthio-, (Z)-2-butenedioate (1:1) HQ2680000