IUPAC:(2S,5S,8R,9S,10S,11R,15S,16S,18S)-9,10,15,18-tetrahydroxy-16-methoxy-12,12-dimethyl-6-methylidene-17-oxapentacyclo[7.6.2.1^{5,8}.0^{1,11}.0^{2,8}]octadecan-7-one
IUPAC:(2S,5S,8R,9S,10S,11R,15S,16S,18S)-9,10,15,18-tetrahydroxy-16-methoxy-12,12-dimethyl-6-methylidene-17-oxapentacyclo[7.6.2.1^{5,8}.0^{1,11}.0^{2,8}]octadecan-7-one