title: [Polarographic study on the keto-enol-tautomerism of 4-amidinophenyl pyruvic acid (APPA)].
mesh_terms: D000578:Amidines / Q000032:analysis; D007202:Indicators and Reagents; D010667:Phenylpyruvic Acids / Q000032:analysis*; D011048:Polarography / Q000379:methods*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000578:Amidines; D007202:Indicators and Reagents; D010667:Phenylpyruvic Acids
vernacular_title: Polarographische Untersuchungen zur Keto-Enol-Tautomerie der 4-Amidinophenylbrenztraubensäure (APPA)