Synonyms | Pirfenidone Impurity 22A, Pirfenidone 5-Carboxylic Acid Impurity, 5-Carboxy-N-phenyl-2-1H-pyridone |
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Chemical Name | 6-Oxo-1-phenyl-1,6-dihydro-pyridine-3-carboxylic acid |
CAS No | 77837-08-2 |
Molecular Formula | C12H9NO3 |
Molecular Weight | 215.20 |