(+)-3,11-Dihydro-3,5-dimethyl-3-(4-methyl-3-pentenyl)pyrano(3,2-a)carbazole 21104-28-9 Pyrano(3,2-a)carbazole, 3,11-dihydro-3,5-dimethyl-3-(4-methyl-3-pentenyl)-, (+)-