Description

Erythrosin B is a synthetic, water-soluble xanthene dye widely recognized for its vibrant pink to red color. This high-purity colorant is valued for its excellent stability and compatibility in various formulations, making it a critical component for precise coloration. It is primarily utilized by manufacturers in the food, pharmaceutical, cosmetic, and industrial sectors seeking a reliable and compliant red dye solution. Erythrosin B CAS NO 15905-32-5 meets stringent quality standards for applications where color consistency and safety are paramount.

Application

• Food Coloring: Used as a red color additive (E127) in candies, cake decorations, canned fruits, and snack foods.
• Pharmaceuticals: Employed in the coloration of tablets, capsules, and medicinal syrups for product identification and branding.
• Cosmetics & Personal Care: A key pigment in lipsticks, blushes, soaps, and bath products to achieve stable pink and red hues.
• Diagnostic Staining: Utilized in biological and histological stains for microscopy and laboratory analysis.
• Industrial Applications: Functions as a colorant in inks, textiles, paper, and various specialty chemicals.
• Tracer & Marker: Applied in environmental and hydrological studies as a visible water tracer.

Basic Information

Product Name	Erythrosin B
CAS No.	15905-32-5
Molecular Formula	C20H6I4Na2O5
Molecular Weight	879.86 g/mol
Synonyms	Acid Red 51; C.I. 45430; FD&C Red No. 3; Food Red 14; E127; Tetraiodofluorescein Sodium Salt; 2',4',5',7'-Tetraiodo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one disodium salt
EINECS	240-098-2

Quality Control

Our Erythrosin B is manufactured under strict quality management systems to ensure batch-to-batch consistency and compliance with relevant industry specifications, including Food Chemical Codex (FCC) and other international purity standards. Each lot undergoes rigorous analytical testing for identity, purity, and heavy metal content. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials and moisture. This product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Red to brownish-red powder
Identification (IR)	Conforms to Standard
Assay (HPLC)	≥ 85.0%
Loss on Drying	≤ 15.0 %
Water-insoluble matter	≤ 0.2 %
Heavy Metals (as Pb)	≤ 20 ppm
Iodine (as Sodium Iodide)	≤ 0.1 %
Subsidiary Colors	Conforms to Standard

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.