1-Piperazineethanol, 4-(10,11-dihydro-7-ethyldibenzo(b,f)thiepin-10-yl)-, (Z)-2-butenedioate (1:2) (salt) 3-Ethyl-11-(4-(2-hydroxyethyl)piperazino)-10,11-dihydrodibenzo(b,f)thiepin bis(maleate) 84964-87-4