Showing structure for 5-({6-[4-(5-carboxy-5,8a-dimethyl-2-methylidene-hexahydro-1h-naphthalen-1-yl)but-2-en-2-yl]-2-methylcyclohex-2-en-1-yl}methyl)-1,4a-dimethyl-7-methylidene-hexahydro-2h-naphthalene-1-carboxylic acid