2-butenoic acid, 2-methyl-4-oxo-4-phenyl-, methyl ester InChI=1/C12H12O3/c1-9(12(14)15-2)8-11(13)10-6-4-3-5-7-10/h3-8H,1-2H3/b9-8 methyl 2-methyl-4-oxo-4-phenylbut-2-enoate