Showing structure for 16-hydroxy-2-(hydroxymethyl)-1,14,17,17-tetramethyl-8-(prop-1-en-2-yl)pentacyclo[11.7.0.0²,¹⁰.0⁵,⁹.0¹⁴,¹⁸]icosane-5,15-dicarboxylic acid