1H-Imidazole-5-carboxylic acid1072-84-0100 % similar 1-(1H-Imidazol-4-yl)ethan-1-one61985-25-953 % similar 5-Pyrimidinecarboxylic acid4595-61-350 % similar Methyl 1H-imidazole-5-carboxylate17325-26-748 % similar 4-Methylpyrrole-2-carboxylic acid18711-59-647 % similar Pyrrole-2-carboxylic acid634-97-945 % similar Ethyl imidazole-4-carboxylate23785-21-944 % similar 1H-Imidazole-5-acetic acid645-65-844 % similar 1H-Pyrazole-5-carboxylic acid1621-91-644 % similar Pyrazole-3,5-dicarboxylic acid3112-31-044 % similar Pyrazole-4-carboxylic acid37718-11-944 % similar 1,2,4-Triazole-3-carboxylic acid4928-87-444 % similar 2H-Pyrazole-3-carboxylic acid797027-83-944 % similar Dinicotinic acid499-81-043 % similar 5-Hydroxypyrazine-2-carboxylic acid34604-60-943 % similar Imidazole-4,5-dicarboxylic acid570-22-942 % similar 3-(5-Azaindole)carboxylic acid119248-43-042 % similar 1H-Pyrrolo(2,3-c)pyridine-2-carboxylic acid24334-20-142 % similar 1H-Pyrrolo(2,3-c)pyridine-3-carboxylic acid67058-74-642 % similar Urocanic acid104-98-342 % similar