51829-77-7 BENZ(a)AZULEN-6,9-IMINE, 4b,5,6,7,8,9,9a,10-OCTAHYDRO-11-METHYL-, HYDROCHLORIDE, Benz(a)azulen-6,9-imine, 4b,5,6,7,8,9,9a,10-octahydro-11-methyl-, hydrochloride, (4br-(4b-alpha,6-beta,9-beta,9a-alpha))-