Tartrazine

• CAT Number: R052556
• CAS Number: 1934-21-0
• Molecular Formula: C16H9N4Na3O9S2
• Molecular Weight: 534.36
• Purity: ≥95%
• Synonyms: 4,5-Dihydro-5-oxo-1-(4-sulfophenyl)-4-[2-(4-sulfophenyl)diazenyl]-1H-pyrazole-3-carboxylic Acid Sodium Salt; Aizen Tartrazine; Acid Yellow 23; Filter Yellow; Hidazid Tartrazine; Hydrazine Yellow; Tartran Yellow; Tartraphenine; Tartrazin; Tartrazine 3
• Storage: room temp
• IUPAC Name: trisodium;5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazole-3-carboxylate
• InChI: InChI=1S/C16H12N4O9S2.3Na/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;;;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3
• InChIKey: UJMBCXLDXJUMFB-UHFFFAOYSA-K
• SMILES: C1=CC(=CC=C1N=NC2C(=NN(C2=O)C3=CC=C(C=C3)S(=O)(=O)[O-])C(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]

Tartrazine（Cat No.:R052556）, is a synthetic organic compound commonly used as a food dye and coloring agent in various food and beverage products. Also known as Yellow 5 or E102, it imparts a bright yellow or lemon-yellow color to foods and is often used in candies, soft drinks, cereals, and processed snacks. Tartrazine undergoes rigorous safety evaluations before its approval as a food additive, but it can cause allergic reactions in some individuals, particularly those with sensitivities to azo dyes.