1H-[1,2,4]Triazole-3-carboxylic acid1H-1,2,4-Triazole-3-carboxylic acid 97%3-Carboxy-1H-1,2,4-triazole1,2,4-三氮唑-3-羧酸1,2,4-Triazole-3-carboxylic acid5-Carboxy-1H-1,2,4-triazole1H-1,2,4-Triazole-5-carboxylic acid2H-1,2,4-Triazole-3-carboxylic acid1,2,4-Triazole-3-carboxylic AcidNSC 1655271H-1,2,4-Triazole-3-carboxylic AcidNSC 2025744H-1,2,4-Triazole-3-carboxylic Acids-Triazole-3-carboxylic Acid1H-1,2,4-triazole-3-carboxylic acid