Yellow 5

Yellow 5 is classified chemically as a pyrazole color that conforms to the formula: C16H12N4O9S2 • 3Na.
CAS Numbers:
  • 1934-21-0
EC/List Numbers:
  • 217-699-5
Technical Names:
  • 1H-Pyrazole-3-Carboxylic Acid, 4,5-Dihydro-5-Oxo-1-(4-Sulfophenyl)-4-[(4-Sulfophenyl)Azo]-, Trisodium Salt
  • 1H-Pyrazole-3-Carboxylic Acid, 4,5-Dihydro-5-Oxo-1-(4-Sulfophenyl)-4-[2-(4-Sulfophenyl)Diazenyl]-, Sodium Salt (1:3)
  • 4,5-Dihydro-5-Oxo-1-(4-Sulfophenyl)-4-[(4-Sulfophenyl)Azo]-1H-Pyrazole-3-Carboxylic Acid, Trisodium Salt
  • Acid Yellow 23 (INCI)
  • Acid Yellow 23, Trisodium Salt
  • CI 19140 (INCI)
  • FD&C Yellow No. 5 (should be used only if batch certified by the U.S. Food and Drug Administration)
  • Hydrazine Yellow
  • Tartraphenine
  • Tartrazin
  • Tartrazine
  • Yellow 5 (INCI)
  • Yellow No. 4
Product Categories:
  • Cleaning Products
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