2-Butynylamine, 4-((10,11-dihydro-5H-dibenzo(a,d)cyclohepten-5-yl)oxy)-N,N-dimethyl-, maleate 4-((10,11-Dihydro-5H-dibenzo(a,d)cyclohepten-5-yl)oxy)-N,N-dimethyl-2-butynylamine maleate ES1060500