Showing structure for methyl (1r,2r,5r,8r,9r,10s,13s,14s,15s,16r,18r)-15-formyl-16-hydroxy-1,2,14,17,17-pentamethyl-8-(prop-1-en-2-yl)pentacyclo[11.7.0.0²,¹⁰.0⁵,⁹.0¹⁴,¹⁸]icosane-5-carboxylate