5H-1,11c.beta.-(Epoxymethano)phenanthro[10,1-bc]pyran-5,10(6a.beta.H)-dione,1,2,3,3a.beta.,4,7,7a.alpha.,11,11a,11b.alpha.-decahydro-1.alpha.,2.alpha.,4.beta.,11.beta.-tetrahydroxy-3.alpha.,8,11a.beta.-trimethyl-, 4-acetate 84062-60-2 B633407K028 HOLACANTHONE NSC126765