27649-18-9 3-(10,11-Dihydro-5H-dibenzo(a,d)cyclohepten-5-ylidene)tropane methanesulfonate 8-Azabicyclo(3.2.1)octane, 3-(10,11-dihydro-5H-dibenzo(a,d)cyclohepten-5-ylidene)-8-methyl-, methanesulfonate