52617-32-0 Bicyclo[3.3.1]non-3-ene-2,9-dione, 3-(3,4-dihydroxybenzoyl)-4-hydroxy-8,8-dimethyl-1,7-bis(3-methyl-2-butenyl)-5-[5-methyl-2-(1-methylethenyl)-5-hexenyl]-, [1S-[1.alpha.,5.alpha.,5(S*),7.beta.]]- NSC247527 XANTHOCHYMOL