4-Hydroxypyridine-2-carboxylic acid22468-26-4100 % similar Chelidamic acid138-60-360 % similar Pyrrole-2-carboxylic acid634-97-955 % similar 4-Methylpyrrole-2-carboxylic acid18711-59-652 % similar 2-Hydroxyisonicotinic acid22282-72-049 % similar 4-Hydroxy-2-methylpyridine18615-86-642 % similar 2-Fluoro-4-hydroxypyridine22282-69-542 % similar 2-Aminopyridin-4-ol33631-05-942 % similar 2-Bromo-4-hydroxypyridine36953-40-942 % similar 1H-Indole-5-carboxylic acid1670-81-142 % similar 1H-Indole-6-carboxylic acid1670-82-242 % similar Chelidonic acid99-32-141 % similar 1H-Imidazole-5-carboxylic acid1072-84-040 % similar 1H-Pyrazole-5-carboxylic acid1621-91-640 % similar Pyrazole-3,5-dicarboxylic acid3112-31-040 % similar 2H-Pyrazole-3-carboxylic acid797027-83-940 % similar Indole-2-carboxylic acid1477-50-539 % similar 5-Methylindole-2-carboxylic acid10241-97-139 % similar 1,4-Dihydro-4-oxoquinoline-2-carboxylic acid13593-94-739 % similar Kynurenic acid492-27-339 % similar