1-(6,11-Dihydrodibenz(b,e)oxepin-11-yl)-4-methylpiperazine maleate 11-(4-Methylpiperazino)-6,11-dihydrodibenzo(b,e)oxepin maleate 17021-66-8 Piperazine, 1-(6,11-dihydrodibenz(b,e)oxepin-11-yl)-4-methyl-, maleate (1:1)