1H-1,2,3-Triazole-4-carboxylic acid, 5-methyl-1-(4-pyridinyl)- 5-26-07-00049 (Beilstein Handbook Reference) 5-Methyl-1-(4-pyridinyl)-1H-1,2,3-triazole-4-carboxylic acid 70292-16-9 BRN 0789294