IUPAC:(1R,2S,4S,7S,8R,9S,12S,13S,16S,18S)-16-hydroxy-7,9,13-trimethyl-5-oxapentacyclo[10.8.0.0^{2,9}.0^{4,8}.0^{13,18}]icosan-6-one
IUPAC:(1R,2S,4S,7S,8R,9S,12S,13S,16S,18S)-16-hydroxy-7,9,13-trimethyl-5-oxapentacyclo[10.8.0.0^{2,9}.0^{4,8}.0^{13,18}]icosan-6-one