1-(10,11-Dihydro-2-(trifluoromethyl)dibenzo(b,f)thiepin-10-yl)-4-methylpiperazine maleate 57564-33-7 Piperazine, 1-(10,11-dihydro-2-(trifluoromethyl)dibenzo(b,f)thiepin-10-yl)-4-methyl-, (Z)-2-butenedioate (1:1)