2-Propenoic acid, 2-methyl-, 2,3,3a,4,4a,5,7a,8,9,9a-decahydro-9-hydroxy-3,4a,8-trimethyl-2,5-dioxoazuleno[6,5-b]furan-4-yl ester, [3S-(3.alpha.,3a.beta.,4.beta.,4a.alpha.,7a.beta.,8.beta.,9.alpha.,9a.beta.)]- 25873-31-8 NSC220531 RADIATIN