1-(2-Propynyl)-4-((6,7,8,9-tetrahydro-5H-benzocyclohepten-2-yl)methyl)piperazine dimaleate 2-(4-Propargylpiperazinomethyl)-6,7,8,9-tetrahydro-5H-benzocycloheptene di(hydrogen maleate) 55037-93-9 Piperazine, 1-(2-propynyl)-4-((6,7,8,9-tetrahydro-5H-benzocyclohepten-2-yl)methyl)-, (Z)-2-butenedioate (1:2)