18296-46-3 Butanoic acid, 3-methyl-, (6-(acetyloxy)-1,4a,5,6,7,7a-hexahydro-7-methylene-1-(3-methyl-1-oxobutoxy)cyclopenta(c)pyran-4-yl)methyl ester, (1S-(1alpha,4aalpha,6alpha,7aalpha))- Desoxidodidrovaltrate