4-Carboxy-4'-methyl-2,2'-bipyridine

4-Methyl-4'-carboxy-2,2'-bipyridine

4'-METHYL-2,2'-BIPYRIDINE-4-CARBOXYLIC ACID

2-(4-carboxy-4-Methyl-4,5-dihydropyridin-2-yl)pyridine-4-carboxylic acid