10-(trans-2,5-Dimethylpiperazine)-8-methylthio-10,11-dihydrodibenzo(b,f)thiepin maleate Piperazine, 1-(10,11-dihydro-8-(methylthio)dibenzo(b,f)thiepin-10-yl)-2,5-dimethyl-, (E), (Z)-2-butenedioate (1:1) TL4306200