IUPAC:(1R,2S,3S,5S,8R,9S,10S)-3,9,10,18-tetrahydroxy-12,12-dimethyl-6-methylidene-17-oxapentacyclo[7.6.2.1^{5,8}.0^{1,11}.0^{2,8}]octadecan-7-one
IUPAC:(1R,2S,3S,5S,8R,9S,10S)-3,9,10,18-tetrahydroxy-12,12-dimethyl-6-methylidene-17-oxapentacyclo[7.6.2.1^{5,8}.0^{1,11}.0^{2,8}]octadecan-7-one