Try searching for...
SCFBio, IIT Delhi
Formula: C11H16O4 | Mol. Weight: 212.24 g/mol
IUPAC: methyl (2S,3R,5E)-5-ethylidene-2,3-dimethyl-6-oxooxane-2-carboxylate
CC=C1CC(C(OC1=O)(C)C(=O)OC)C