Alpha-naphthol orange
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