Erioglaucine disodium salt, more commonly recognized as Brilliant Blue FCF (CI 42090) or FD&C Blue No. 1, is a synthetic triphenylmethane dye that imparts a vibrant blue color. Its unique chemical structure and properties make it a valuable ingredient across multiple industries, from food and beverages to pharmaceuticals and even textiles. Understanding its chemical makeup and applications is key for B2B buyers.

The Chemistry Behind the Blue

Brilliant Blue FCF is characterized by its chemical name: disodium N-(4-(N-ethyl-N-3-sulfophenylmethyl)aminophenyl)-2-sulfobenzhydrylidene-2,5-cyclohexadien-1-ylidene)-3-sulfo-benzenemethanaminium. Its molecular formula is C37H34N2Na2O9S3, with a molecular weight of approximately 792.86 g/mol. The presence of sulfonate groups (-SO3Na) renders it soluble in water, a crucial property for its widespread use. The dye's color arises from its conjugated pi system, which absorbs light in the yellow-orange spectrum, reflecting blue light. Its typical appearance is as a red-purple to blue-purple powder or granules, with a purity of at least 85%.

Key Applications of Erioglaucine Disodium Salt

The versatility of Brilliant Blue FCF stems from its stability, color intensity, and regulatory approval for specific uses:

  • Food Industry: It is extensively used as a food colorant in confectioneries, beverages, dairy products, and baked goods. It can be mixed with other primary colors to achieve a wide spectrum of shades, such as green when combined with yellow dyes.
  • Pharmaceuticals: It serves as a coloring agent in tablets, capsules, and oral solutions, aiding in product identification and patient compliance.
  • Cosmetics: Used in makeup products like eyeshadows, lipsticks, and nail polishes, as well as in bath products, to provide attractive blue coloration.
  • Other Uses: It also finds applications as a biological stain and even in certain textile dyeing processes where its specific shade and properties are desired.

Procurement and Supply Chain Considerations

For businesses looking to buy Erioglaucine Disodium Salt, identifying reliable manufacturers is essential. When sourcing from international markets, particularly China, it's vital to partner with suppliers who can guarantee product quality, consistent purity (e.g., ≥85.0%), and adherence to relevant industry standards. Key purchasing considerations include:

  • Supplier Verification: Check for certifications and a history of supplying to your industry.
  • Technical Data: Request COAs and SDS for detailed product information and safety guidelines.
  • Volume Pricing: Obtain quotes for bulk purchases to ensure cost-effectiveness.

Understanding the chemical properties and application spectrum of Erioglaucine Disodium Salt empowers formulators and procurement professionals to make informed decisions. If you are seeking a dependable supplier of Brilliant Blue FCF, exploring options from experienced chemical manufacturers will ensure you receive a high-quality product for your specific needs.