80180-30-9

(1R,4aS,5S,8aR,9aS,13S,13aS,13bR)-1,13-dihydroxy-10,13a,14-trimethyl-1,9,9a,13,13a,13b-hexahydro-2H,5H-1,5-methanobenzo[g]pyrano[3,4-e]chromene-2,7,12(6H,8aH)-trione