30760-22-6 NIGAKIHEMIACETAL C NSC306400 Phenanthro[10,1-bc]pyran-11(1H)-one, 2,3,3a.beta.,4,5,6a.beta.,7,7a.alpha.,8,11a,11b.alpha.,11c-dodecahydro-1.alpha.,2.beta.,5-trihydroxy-10-methoxy-3.alpha.,8.alpha.,11a.beta.,11c.beta.-tetramethyl- Picras-2-en-1-one, 11,12,16-trihydroxy-2-methoxy-, (11.alpha.,12.beta.)-