1-Methyl-3-((2-pyridinylamino)sulfonyl)-1H-pyrazole-4-carboxylic acid 1-Methyl-3-(N-2'-pyridyl)sulfamoylpyrazole-4-carboxylic acid 178880-01-8 1H-Pyrazole-4-carboxylic acid, 1-methyl-3-((2-pyridinylamino)sulfonyl)-