IUPAC:(1R,4S,5R,9R,10S,11S,13R)-11-hydroxy-5,9-dimethyl-14-methylidene-15-oxotetracyclo[11.2.1.0^{1,10}.0^{4,9}]hexadecane-5-carboxylic acid
IUPAC:(1R,4S,5R,9R,10S,11S,13R)-11-hydroxy-5,9-dimethyl-14-methylidene-15-oxotetracyclo[11.2.1.0^{1,10}.0^{4,9}]hexadecane-5-carboxylic acid