1-Naphthalenecarboxylic acid, decahydro-5-(5-methoxy-3-methyl-5-oxo-3-pentenyl)-1,4a-dimethyl-6-methylene-, (1R-(1alpha,4abeta,5beta(E),8aalpha))- 139628-86-7 Mecolabate Methyl 18-carboxylabda-8,13-diene-15-oate