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Pigments & Colorants

Ponceau 4R

CAS: 2611-82-7

Overview

Ponceau 4R (CAS 2611-82-7 ), also sold as Cochineal Red A, New Coccine, and listed as E124 in the EU additive register, is a synthetic azo dye that delivers a vivid red-to-pink hue across food, cosmetic, and industrial coloring applications.

Brilliant Scarlet 4R is another recognized trade designation used in textile and printing markets. In food manufacturing, E124 is approved for use in products such as canned fruits, desserts, confectionery, and processed meat to achieve consistent red coloration.

Cosmetic formulators incorporate it into lipsticks, blushes, and rinse-off personal care products where a stable, bright red tone is required. In textile dyeing, it is applied to wool, silk, and nylon substrates using acid dyeing processes.

These processes produce uniform scarlet shades across various materials. Printing ink producers also use it as a colorant in packaging inks where regulatory compliance and color consistency are primary sourcing criteria for high-volume production.

Ponceau 4R is supplied as a water-soluble powder or granule, typically in deep red form. Food-grade material is available meeting E124 specifications under EU Directive standards, with purity levels commonly at or above 85% dye content.

Technical-grade material is available for textile and industrial applications where food compliance is not required. This ensures that manufacturers can select the appropriate grade based on their specific application needs and regulatory requirements.

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Physical Properties

Melting Point>300 °C
Density1.772[at 20℃]
AppearanceDeep red powder
ColorBordeaux to brown
FormPowder
Water Solubility305.21g/L at 20℃
Vapor Pressure0Pa at 25℃
Log P-2.267 at 20℃

Trade & Regulatory

HS Code32041200
Storage Class11 - Combustible Solids
WGK (Germany)2

Other Names

new coccine | cochineal red A | brilliant scarlet 4R | brilliant scarlet 3R | acid red 18 | E124 | C.I. Acid Red 18Trisodium Salt | RefChem:1080550

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Chemical Properties

CAS Number
2611-82-7
EC Number
220-036-2
Mol. Weight
604.5
HS Code
32041200

Industries

Documentation