4,6,6,9,9-pentamethyl-3,4,6,7,8,9-hexahydro-1H-benzo[g]isochromene, 3,4,6,7,8,9-Hexahydro-4,6,6,9,9-pentamethyl-1H-naphtho(2,3-c)pyran, EINECS 217-652-9, 3,4,6,7,8,9-Hexahydro-4,6,6,9,9-pentamethyl-1-naphtho(2,3-c)pyran, 1H-Naphtho(2,3-c)pyran,3,4,6,7,8,9-hexahydro-4,6,6,9,9-pentamethyl,