1-(7-Chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-4-methylpiperazine maleate 4789-67-7 Piperazine, 1-(7-chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-4-methyl-, maleate (1:1)