IUPAC:(1R,1'S,2R,6'S,7'R,9'S)-7'-hydroxy-3,3-dimethyl-10'-methylidene-2',11'-dioxo-3'-oxaspiro[cyclohexane-1,5'-tricyclo[7.2.1.0^{1,6}]dodecane]-2-carbaldehyde
IUPAC:(1R,1'S,2R,6'S,7'R,9'S)-7'-hydroxy-3,3-dimethyl-10'-methylidene-2',11'-dioxo-3'-oxaspiro[cyclohexane-1,5'-tricyclo[7.2.1.0^{1,6}]dodecane]-2-carbaldehyde