36150-07-9 Azuleno(4,5-b)furan-2,7-dione, 3,3a,4,5,9a,9b-hexahydro-6,9-dimethyl-3-methylene-, (3aS-(3aalpha,9aalpha,9bbeta))- Dehydroleucodin Dehydroleucodine NSC 180034