74312-38-2 BRN 1321995 Dimethylhymenoxon FURO(2',3':5,6)CYCLOHEPTA(1,2-c)PYRAN-2(3H)-ONE, DECAHYDRO-5,7-DIMETHOXY-4a,9-DI Furo(2',3':5,6)cyclohepta(1,2-c)pyran-2(3H)-one, decahydro-5,7-dimethoxy-4a,9-dimethyl-3-methylene-, (3aR-(3a-alpha,4a-beta,5-alpha,7-beta,8a-alpha,9-alpha,10-alpha))- NSC 260892