1-Piperazinepropanoic acid, 4-(8-chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-, (Z)-2-butenedioate (1:1) 37545-49-6 4-(8-Chloro-10,11-dihydrodibenzo(b,f)thiepin-10-yl)-1-piperazinepropanoic acid maleate 8-Chloro-10-(4-(2-carboxyethyl)piperazino)-10,11-dihydrodibenzo(b,f)thiepin maleate