5H-Dibenzo[a,d]cycloheptene, 10,11-dihydro-5-[2-(1-methyl-2-piperidyl)ethyl]- 67226-81-7 NSC186059 Piperidine, 2-[2-(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-yl)ethyl]-1-methyl-