10180-86-6 Angustibalin Azuleno(6,5-b)furan-2,5-dione, 4-(acetyloxy)-3,3a,4,4a,7a,8,9,9a-octahydro-4a,8-dimethyl-3-methylene-, (3aR-(3aalpha,4alpha,4abeta,7aalpha,8alpha,9aalpha))- (9CI) HELANIN ACETATE NSC 166124