IUPAC:(1R,2S,5S,6S,9S,12S,13R,16S,18R)-16-hydroxy-2,6,13,17,17-pentamethyl-6-(4-methylpentyl)-7-oxapentacyclo[10.8.0.0^{2,9}.0^{5,9}.0^{13,18}]icosan-8-one
IUPAC:(1R,2S,5S,6S,9S,12S,13R,16S,18R)-16-hydroxy-2,6,13,17,17-pentamethyl-6-(4-methylpentyl)-7-oxapentacyclo[10.8.0.0^{2,9}.0^{5,9}.0^{13,18}]icosan-8-one