15206-55-0 71833-42-6 AI3-07037 Benzeneacetic acid, alpha-oxo-, methyl ester EINECS 239-263-3 Glyoxylic acid, phenyl-, methyl ester Methyl benzoylformate Methyl oxophenylacetate Methyl phenylglyoxylate NSC 171206 Phenylglyoxylic acid, methyl ester