1-(4-Chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-4-methylpiperazine maleate 13956-72-4 Piperazine, 1-(4-chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-4-methyl-, maleate (1:1)