5988-99-8 Azuleno(6,50b)furan-2,5-dione, 4-(acetyloxy)-3,3a,4,4a,7a,8,9,9a-octahydro-4a,8-dimethyl-3-methylene-, (3aR-(3aalpha,4beta,4abeta,7aalpha,8alpha,9abeta))- Linifolin A Linifoline A NSC 153859 PF 57