Product Description

ProductAcid Yellow 23
CAS1934-21-0
FormulaC16H9N4O9S2 3Na
SynonymFD&C Yellow No. 5, Acid yellow 23 (INCI), Acid yellow 23 trisodium salt, 3-Carboxy-5-hydroxy-1-p-sulfophenyl-4-p-sulfophenylazopyrazole trisodium salt, CI 19140, DC Yellow No. 5 4,5-Dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl) azo]-1H-pyrazole-3-carboxylic acid trisodium salt, Food yellow 4, 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl) azo]-, trisodium salt, Tartrazine, Tartrazine yellow Trisodium-3-carboxy-5-hydroxy-1-p-sulfophenyl-4-p-sulfophenylazopyrazole

Typical Product Specifications

Atmospheric OH Rate Constant3.69E-11 cm3/molecule-sec
log P (octanol-water)-10.17
NotesAcid Yellow 23 uses and applications include: Dye for polyamide fibers; pigment in printing inks; colorant for cosmetics, hair dyes, foods, pharmaceuticals (orals and topicals), eye use; colorant in paperpaperboard in contact with aqueousfatty foods Suggested storage of Acid Yellow 23: Hygroscopic
ClassSpecialty Chemicals
IndustryCosmetic, Pharmaceutical
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