Erythrosine B; Erythrosin B sodium salt (C.I. 45430)
CAT No.: ASD‑638
CAS No.: 16423‑68‑0
C.I. Name: Acid Red 51
Color Index No.: 45430
EEC No.: E127
Synonyms: Erythrosine, Food Red 14, Tetraiodofluorescein, Erythrosine B (FD & C Red 3)
Product Overview
Erythrosine B is a synthetic red dye belonging to the xanthene group, commonly known as FD&C Red No. 3. It appears as a dark cherry‑red crystalline powder and produces a bright pink‑red solution when dissolved in water. It is widely used in food, pharmaceuticals, cosmetics, and microbiological media due to its vivid color, stability, and compatibility with aqueous formulations.
Technical Specifications
Appearance: Dark red crystalline powder
Solubility: Freely soluble in water, sparingly soluble in ethanol
Dye Content: ≥ 92%
Loss on Drying: ≤ 11.5%
Water Insoluble Matter: ≤ 0.058%
Heavy Metals (as Pb): ≤ 40 ppm
Arsenic: ≤ 3 ppm
Mercury: ≤ 1 ppm
Lead: ≤ 2 ppm
Chromium: ≤ 5 ppm
Applications
Food Industry: Confectionery, beverages, cake decorations, candied fruits, and processed foods (where permitted).
Pharmaceuticals: Tablet coatings, syrups, and topical preparations.
Cosmetics: Lipsticks, blushes, and personal care products.
Laboratory Use: Indicator dye in microbiological culture media and staining procedures.
Regulatory & Compliance
Approved as FD&C Red No. 3 (E127) in many countries for limited food and pharmaceutical use.
Subject to restrictions in certain markets (e.g., FDA limits use in some food categories).
Supplied with Certificate of Analysis (COA) and compliance documentation.
Packaging & Storage
Pack Sizes: Different
Storage: Store in a cool, dry place, tightly sealed, away from direct sunlight
Shelf Life: 3 years under recommended storage conditions
Key Benefits
Brilliant pink‑red shade with high stability
Consistent quality and purity
Versatile applications across food, pharma, and lab use
Available in bulk packaging for industrial supply
AuSaMicS Life Science supplies Erythrosine B (FD&C Red 3, CAT No: ASD‑638) with full technical support, COA, and regulatory documentation to meet your quality assurance requirements.
