IUPAC:(1R,2R,5S,8R,9R,10R,13R,14R,15S,16R,18R)-15-formyl-16-hydroxy-1,2,14,17,17-pentamethyl-8-(prop-1-en-2-yl)pentacyclo[11.7.0.0^{2,10}.0^{5,9}.0^{14,18}]icosane-5-carboxylic acid
IUPAC:(1R,2R,5S,8R,9R,10R,13R,14R,15S,16R,18R)-15-formyl-16-hydroxy-1,2,14,17,17-pentamethyl-8-(prop-1-en-2-yl)pentacyclo[11.7.0.0^{2,10}.0^{5,9}.0^{14,18}]icosane-5-carboxylic acid