109883-99-0 3H,6H-3a,8b-Methano-1H-indeno(4,5-c)furan-4-carboxaldehyde, 5a,7,8,8a-tetrahydro-3,4a-dihydroxy-7,7-dimethyl-1-oxo- 9-Hydroxymarasmic acid CCRIS 1703