T0388

Tartrazine

Dye content ≥85 %, Powder

• Synonym(s): Acid Yellow 23
• Empirical Formula (Hill Notation): C₁₆H₉N₄Na₃O₉S₂
• CAS Number: 1934-21-0
• Molecular Weight: 534.36
• Colour Index Number: 19140
• Beilstein: 69850
• EC Number: 217-699-5
• MDL number: MFCD00148908
• UNSPSC Code: 85151701
• PubChem Substance ID: 24899885
• NACRES: NA.47

Properties

• product name: Tartrazine, Dye content ≥85 %
• form: powder
• composition: Dye content, ≥85%
• color: orange
• solubility: H₂O: 10 mg/mL, clear, yellow to orange
• density: 2.12 at 20 °C
• εmax: 435-500 at 425-429 nm in water
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(c2ccc(cc2)S([O-])(=O)=O)C(=O)C1N=Nc3ccc(cc3)S([O-])(=O)=O
• 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
• InChI key: UJMBCXLDXJUMFB-UHFFFAOYSA-K

Description

General description

Tartrazine (Cl 19140) also known as Acid yellow 23, is a hydrophilic polyanionic dye. It is a sulfonic dye, which can be synthesized by the reaction of sulfanilic acid with 3-carboxy-l-(4-sulfophenyl)-5-pyrazolone.

Application

Tartrazine may be used as a reference standard in the determination of tartrazine in food samples using ion-pair liquid chromatography coupled with photodiode-array and electrospray mass spectrometry detector.
The application of Tartrazine is seen in the phloxine-tartrazine procedure for cellular inclusions such as viral aggregates and eosinophil granules. It may be used as a substitute for orange G in a variant of Mallory′s trichrome, and in a methyl violet-tartrazine mixture to stain cryptosporidia in faecal smears and mucosal scrapings.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves