Pharmaceutical IntermediateChina High Quality 3-Oxo-4-Phenyl-Butyric Acid Ethyl Ester CAS 5413-05-8, Find details about China Ethyl 3-Oxo-4-Phenylbutanoate, Ethyl 2-Phenyl-3-Oxobutanoate from High Quality 3-Oxo-4-Phenyl-Butyric Acid Ethyl Ester CAS 5413-05-8