2-Pyridin-3-yl-4,5-dihydro-thiazole-4-carboxylic acid4,5-Dihydro-2-(pyridin-3-yl)-1,3-thiazole-4-carboxylic acid 97%4-Carboxy-4,5-dihydro-2-(pyridin-3-yl)-1,3-thiazole3-(4-Carboxy-4,5-dihydro-1,3-thiazol-2-yl)pyridine2-pyrid-3-yl-4,5-dihydro-1,3-thiazole-4-carboxylic acid