Description

Ponceau 3R is a synthetic azo dye widely recognized for its vibrant red color. Its consistent and reliable hue makes it a valuable coloring agent for a range of industrial and commercial products. This dye is primarily utilized in applications where a stable red colorant is required, such as in the textile and paper industries. We supply high-purity Ponceau 3R to meet the stringent quality demands of global manufacturing sectors.

Application

• Textile Dyeing: Used for coloring natural and synthetic fibers, including cotton, wool, and nylon.
• Paper and Pulp Coloring: Imparts a stable red color to various paper products, including specialty papers and packaging.
• Leather Finishing: Employed in the dyeing process for leather goods to achieve consistent red shades.
• Ink Formulation: Serves as a colorant in the production of printing inks and stamp pads.
• Biological Staining (Historical/Laboratory): Has been used as a histological stain for microscopic analysis of tissue samples.
• Non-Food Colorant: Used in the coloration of non-food items such as soaps, detergents, and cosmetics where regulations permit.

Basic Information

Product Name	Ponceau 3R
CAS No.	3564-09-8
Molecular Formula	C22H16N4Na2O7S2
Molecular Weight	502.43 g/mol
Synonyms	Acid Red 18; C.I. 16255; Food Red 6; New Coccine; Cochineal Red A; Ponceau 3RA; Azorubin S; E124 (when used as a food additive)
EINECS	222-617-2

Quality Control

Our Ponceau 3R is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. The product is tested against rigorous internal specifications for color strength, purity, and solubility. While primarily supplied for industrial use, quality parameters are monitored to ensure they meet the needs of our diverse clientele. A Certificate of Analysis (COA) detailing key specifications is available for every batch upon request.

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 such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (Color Content)	Min. 85%
Loss on Drying	Max. 5.0%
Water Insoluble Matter	Max. 0.2%
Heavy Metals (as Pb)	Max. 20 ppm
Arsenic (As)	Max. 3 ppm

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