1-(N-Methyl-4-piperylidene)-2,2-dimethylindane hydrochloride 34332-00-8 4-(2,2-Dimethyl-1-indanylidene)-1-methylpiperidine hydrochloride Piperidine, 4-(2,2-dimethyl-1-indanylidene)-1-methyl-, hydrochloride Piperidine, 4-(2,3-dihydro-2,2-dimethyl-1H-inden-1-ylidene)-1-methyl-, hydrochloride (9CI) R177