Associated Documentary Standard(s): PONCEAU 4R; Molecular Formula: C20H11N2Na3O10S3; Container Type: VIAL; Base Control Substance (substance %): N/A

Ponceau 4R United States Pharmacopeia (USP) Reference Standard; Synonyms: 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((4-sulfo-1-naphthalenyl)azo) trisodium salt at Sigma-Aldrich

Ponceau 4R consists essentially of trisodium 2-hydroxy-1-(4-sulfonato-1-naphthylazo) naphthalene-6,8-disulfonate and subsidiary colouring matters together with sodium chloride and/or sodium sulphate as the principal uncoloured components.

Ponceau 4R occurs as red powder or granules. It is principally the trisodium salt of 2-hydroxy-1-(4-sulfonato-1-naphthylazo)-6,8-naphthalenedisulfonate and subsidiary coloring matters, with sodium chloride and/or sodium sulfate as the principal uncolored components.

USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards. Certifications: US Pharmacopea Reference Standard

Shop MilliporeSigma Ponceau 4R United States Pharmacopeia (USP) Reference Standard at Thomas Scientific.

Ponceau 4R is a strawberry red azo dye which can be used in a variety of food products, and is usually synthesized from aromatic hydrocarbons; it is stable to light, heat, and acid but fades in the presence of ascorbic acid.

Buy Ponceau 4R USP compendial standard to determine strength, quality, purity and identity in prescribed USP-NF monograph tests and assays.

Fisher Scientific - Ponceau 4R is a synthetic red azo dye and is used as a food colorant. It is used in range of alcoholic and non-alcoholic beverages, food stuffs, preserved.

Ponceau 4R is a sulfonated azo dye, used as a food colorant to give red color to different food products, such as alcoholic beverages, soft drinks, bakery products, candies, syrups, preserved fruits, etc. An acceptable daily intake (ADI) of 0.4 to 0.7 mg (kg body weight)-1 was set for Ponceau 4R by the European Food Safety Authority (EFSA) in 2009.