79902-60-6 Butanoic acid, 2-ethyl-2-methyl-, 1,2,3,7,8,8a-hexahydro-3,7-dimethyl-8-(2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)ethyl)-1-naphthalenyl ester,(1S-(1alpha,3alpha,7beta,8beta(2S*,4S*),8abeta))-