CAS No. 1934-21-0

Molecular Formula: C16H9N4Na3O9S2
Molecular Weight: 534.36


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Molecular Weight: 534.37
Molecular Formula: C16H9N4Na3O9S2
Canonical 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+]
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
Melting Point: >127 °C (dec.)
Purity: 85%
Solubility: Soluble in DMSO (Sparingly, Heated), Water (Slightly)
Storage: Store at -20°C under inert atmosphere
Synonyms: Acid Yellow 23; 4,5-Dihydro-5-oxo-1-(4-sulfophenyl)-4-[2-(4-sulfophenyl)diazenyl]-1H-pyrazole-3-carboxylic Acid Sodium Salt; Aizen Tartrazine; Vondacid Tartrazine; Wool Yellow
Description
Tartrazine, a kind of azo dye, could also be used in pharmaceuticals and has been found to cause allergic and intolerance reactions in patients with asthmatics.


More details are to be found on supplier website