1-(2-Propynyl)-4-(6,7,8,9-tetrahydro-5H-benzocyclohepten-2-yl)piperazine maleate 2-(4-Propargylpiperazino)-6,7,8,9-tetrahydro-5H-benzocycloheptene maleate 51490-27-8 Piperazine, 1-(2-propynyl)-4-(6,7,8,9-tetrahydro-5H-benzocyclohepten-2-yl)-, (Z)-2-butenedioate (1:1)