Showing structure for [(1r,4s,5r,8r,9r,12s,16r,19r)-8-isopropyl-4,9,12,17,17,19-hexamethyl-18-oxopentacyclo[14.2.1.0¹,¹³.0⁴,¹².0⁵,⁹]nonadec-13-en-19-yl]acetic acid