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SHEET /m/ponceau-4r · PubChem CID 17466 · CAS 2611-82-7 · REV 2026.07

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Ponceau 4R

from source

C20H11N2Na3O10S3 · 604.5 g/mol

new coccine · Coccine · SX Purple

What is Ponceau 4R?

A red azo dye used in Europe and Asia in jellies, sausages, and soups. It is not permitted as a food colouring in the United States. from source

CategoryFood & flavor
Chemical familyAromaticsPhenols
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Fig. 1 · 2D structure RDKit

SMILESC1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C=CC…109 characters

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Where Ponceau 4R leads

Relatedcomputed
Amaranth (dye)63% similarBoth carry a phenol group.Allura Red AC48% similarBoth carry a phenol group.Sunset yellow FCF47% similarBoth carry a phenol group.

Sources & methodology

PubChem CID
17466
Wikidata
Q384709
Structure
PubChem → RDKit
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