Alpha-naphthol orange

CAS Number
2347-72-0
EC Number
219-073-7
E Number
E107

What is Alpha-naphthol orange?

Alpha-naphthol orange (CAS 2347-72-0), also known as E111 and Orange GGN, is a synthetic azo dye approved as a colorant in regulated food and non-food applications.

Where is Alpha-naphthol orange used?

  • Food and beverage: consistent orange coloration
  • Cosmetics: soaps and bath products
  • Textile dyeing: dyebath formulations for natural and synthetic fibers, with batch-to-batch shade consistency
  • Leather finishing: surface colorants and topcoats requiring durable, uniform tone
  • It imparts a characteristic orange hue to finished products.

Good to know: Regulatory acceptance varies by market and application; buyers should confirm regional approval status and purity specifications, including dye content percentage, prior to procurement.

Commercial specifications

  • Food-grade material meeting E111 specifications
  • Dye content percentage to be verified

Other Names (Synonyms)

E 111|2-naphthalenesulfonic acid, 6-hydroxy-5-[2-(3-sulfophenyl)diazenyl]-, sodium salt (1:2)|Orange ggn|Disodium;6-hydroxy-5-[(3-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate|Food orange 2|E111

Contact us for supply of Alpha-naphthol orange

Request Quote
Call Request Quote