Showing structure for 2,4,8-trimethyl (1r,2s,3s,4s,5s,8r,9r,12r,13s)-5,13-dihydroxy-4,13-dimethyltetracyclo[10.2.1.0¹,⁹.0³,⁸]pentadecane-2,4,8-tricarboxylate