5-methyl-1H-[1,2,3]triazole-4-carboxylic acid ethyl ester, 5-Methyl-1H-[1,2,3]triazol-4-carbonsaeure-aethylester, 5-Methyl-1,2,3-triazol-carbonsaeure-(4)-aethylester, Ethyl 5-methyl-1H-1,2,3-triazole-4-carboxylate, 1H-1,2,3-Triazole-4-carboxylic acid,5-methyl-,ethyl ester,