182052-09-1 6H,7H,11H-Bis[1]benzopyrano[4,3-b:6',7'-e]pyran-7-one, 3,8- dihydroxy-11,11-dimethyl-13-(3-methyl-2-butenyl)-6-(2-methyl-1-propenyl)- Artelastochromene NSC710341