Citrazinic acid

• CAT Number: R070361
• CAS Number: 99-11-6
• Molecular Formula: C6H5NO4
• Molecular Weight: 155.11
• Purity: ≥95%
• Synonyms: 2.6-Dihydroxyisonicotinic acid
• Storage: RT
• IUPAC Name: 2-hydroxy-6-oxo-1H-pyridine-4-carboxylic acid
• InChI: InChI=1S/C6H5NO4/c8-4-1-3(6(10)11)2-5(9)7-4/h1-2H,(H,10,11)(H2,7,8,9)
• InChIKey: CSGQJHQYWJLPKY-UHFFFAOYSA-N
• SMILES: C1=C(C=C(NC1=O)O)C(=O)O

Citrazinic acid（Cat No.:R070361）, also known as 2,6-dihydroxyisonicotinic acid, is a heterocyclic aromatic compound with the molecular formula C6H5NO4. It features a pyridine ring substituted with hydroxyl groups at the 2 and 6 positions and a carboxylic acid at the 4 position. This yellow crystalline solid is known for its chelating properties and ability to form stable metal complexes. Citrazinic acid is a degradation product of tryptophan and other biomolecules, and it has been studied for its fluorescence properties, coordination behavior, and potential roles in biological systems, environmental chemistry, and analytical applications.