1-(10,11-Dihydro-8-(methylthio)dibenz(b,f)oxepin-10-yl)-4-methylpiperazine maleate 25558-85-4 Piperazine, 1-(10,11-dihydro-8-(methylthio)dibenz(b,f)oxepin-10-yl)-4-methyl-, maleate (1:1)