4-(2-Carboxythien-5-yl)pyridine

5-PYRID-4-YLTHIOPHENE-2-CARBOXYLIC ACID

5-(Pyridin-4-yl)thiophene-2-carboxylic acid 97%

4-(2-Carboxythien-5-yl)pyridine, 2-Carboxy-5-(pyridin-4-yl)thiophene