Sunset Yellow (2783-94-0)

Sunset Yellow FCF Chemical Structure

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What is Sunset Yellow FCF?

Sunset Yellow FCF is principally the disodium salt of 6-hydroxy5-[(4-sulfophenyl)azo]-2-napthalenesulfonic acid. It is an azo dye that is orange in color and is derived from petroleum. It is used to provide an orange color to foods and dietary supplements. It is also used in pharmaceuticals and cosmetics.

Macsen Laboratories is the leading manufacturer and supplier of Sunset Yellow FCF with ISO certification.
PRODUCT SPECIFICATIONS
Name of Product Sunset Yellow FCF
IUPAC Name disodium;6-hydroxy-5-[(4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate
Synonyms C.I. Food Yellow 3; Sunset yellow; FD&C Yellow 6; Orange Yellow S; C.I. Direct Yellow 11; C.I. 15985; E110; Gelborange-S; Amarillo ocaso FCF; Jaune orangé FCF
CAS No 2783-94-0
Molecular Formula C16H10N2Na2O7S2
Molecular Weight 452.4 g/mol
Color Index No 15985
Pubchem CID 17730
Pubchem SID 475523898

CHEMICAL PROPERTIES

SR. No Criteria Limit/Specification
1 Appearance (form) Solid Powder or Granules
2 Appearance (colour) Reddish-yellow to reddish-brown or Orange-red
3 Density 0.617 g/cm3 at 26 °C
4 Melting Point Decomposes without melting when heated to 390 °C
5 Solubility (At 25 °C) 19.0 g/100 mL (In water)
20.0 g/100 mL (In glycerol)
2.2 g/100 mL (In propylene glycol)
6 LogP log Kow = -1.18 (estimated)

Uses

  • Sunset Yellow FCF is presently approved for use in the production of food, medicines, and cosmetics.
  • It is utilized as an orange or yellow-orange coloring agent in candies, pastries, snacks, sauces, and preserved fruits.
  • Sunset yellow is frequently used with E123, Amaranth, to provide a brown hue in chocolates and caramel.

FAQs

Q. Is Sunset Yellow toxic?

According to some studies, Sunset Yellow possesses the potential to be both cytotoxic and genotoxic. However, it has shown no carcinogenicity, genotoxicity, or developmental toxicity in the amounts (0–4 mg/kg) approved for daily intake under both EU and WHO/FAO guidelines.

Q. Is Sunset Yellow dye Natural?

Sunset Yellow FCF is a synthetic azo dye.

Q. Is Sunset Yellow water soluble?

It has a solubility of 190 mg/ml  in water at 25° C.

Q. Is Sunset Yellow FDA-approved?

Sunset yellow FCF, also known as FD&C yellow No. 6 in the United States, is permitted for use in coloring foods, pharmaceuticals, and cosmetics with an acceptable daily consumption of 3.75 mg/kg.

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