1-Propanamine, 3-(9,10-dihydro-2-methyl-4H-benzo(4,5)cyclohepta(1,2-b)furan-4-ylidene)-N,N-dimethyl- 64835-68-3 Methyl-2 ((dimethylamino-3')propylidene)-4-dihydro-9,10 benzo(4,5) cyclohepta(1,2-b)furanne