67604-65-3 8H-DIPYRANO(3,2-b:3',2'-g)(1)BENZOPYRAN-8-ONE, 2,3,4,4a,12,12a-HEXAHYDRO-9-(1,1- 8H-Dipyrano(3,2-b:3',2'-g)(1)benzopyran-8-one, 2,3,4,4a,12,12a-hexahydro-9-(1,1-dimethyl-2-propenyl)-2-(1-hydroxy-1-methylethyl)-4a-methyl- 8H-Dipyrano(3,2-b:3',2'-g)(1)benzopyran-8-one, 9-(1,1-dimethyl-2-propenyl)-2,3,4,4a,12,12a-hexahydro-2-(1-hydroxy-1-methylethyl)-4a-methyl- Clausmarin Clausmarin A