24148-76-3 NIGAKILACTONE A NSC306397 Phenanthro[10,1-bc]pyran-5,11(1H,4H)-dione, 2,3,3a.beta.,6a.beta.,7,7a.alpha.,8,11a,11b.alpha.,11c-decahydro-1.alpha.,2.beta.-dihydroxy-10-methoxy-3.alpha.,8.alpha.,11a.beta.,11c.beta.-tetramethyl- Picras-2-ene-1,16-dione, 11,12-dihydroxy-2-methoxy-, (11.alpha.,12.beta.)-