2-Amino-5-pyrimidinecarboxylic acid3167-50-842 % similar 2,5-Pyrazinedicarboxylic acid122-05-441 % similar Chelidamic acid138-60-341 % similar 2-Chloropyrimidine-5-carboxylic acid374068-01-641 % similar Imidazoleacetic acid hydrochloride3251-69-241 % similar 4-Hydroxypyridine-2-carboxylic acid22468-26-440 % similar 1H-Pyrazole-3,5-dicarboxylic acid monohydrate303180-11-240 % similar Oxazole-5-carboxylic acid118994-90-439 % similar 3,5-Dichloroisonicotinic acid13958-93-539 % similar Thiazole-5-carboxylic acid14527-41-439 % similar 1H-Imidazole-2-carboxylic acid16042-25-439 % similar Cinchomeronic acid490-11-939 % similar 2-Methylpyrimidine-5-carboxylic acid5194-32-139 % similar 3,5-Difluoropyridine-4-carboxylic acid903522-29-239 % similar Pyrazinoic acid98-97-539 % similar Isonicotinic acid55-22-139 % similar Alpha-methyl-dl-histidine dihydrochloride32381-18-339 % similar D-Histidine351-50-838 % similar DL-Histidine4998-57-638 % similar Histidine71-00-138 % similar