1-Piperazinecarboxaldehyde, 4-(10,11-dihydrodibenzo(b,f)thiepin-10-yl)-, maleate (1:1) 10-(4-Formylpiperazino)-10,11-dihydrodibenzo(b,f)thiepin hydrogen maleate 4-(10,11-Dihydrodibenzo(b,f)thiepin-10-yl)-1-piperazinecarboxaldehyde maleate 4925-64-8