1-(2-Chloro-8-fluorodibenzo(b,f)thiepin-10-yl)-4-methylpiperazine maleate 58722-77-3 Piperazine, 1-(2-chloro-8-fluorodibenzo(b,f)thiepin-10-yl)-4-methyl-, (Z)-2-butenedioate (1:1)