(+-)-4-(4,9-Dihydrothieno(2,3-c)(2)benzothiepin-4-yl)-1-methylpiperidine (Z)-2-butenedioate 122942-87-4 4-(1-Methyl-4-piperidyl)-4,9-dihydrothieno(2,3-c)benzothiepin maleate Piperidine, 4-(4,9-dihydrothieno(2,3-c)(2)benzothiepin-4-yl)-1-methyl-, (+-)-, (Z)-2-butenedioate (1:1)