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SHEET /m/erythrosine · PubChem CID 3259 · CAS 16423-68-0 · REV 2026.07

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Erythrosine

from source

C20H8I4O5 · 835.9 g/mol

tetraiodofluorescein · Iodeosin

What is Erythrosine?

Red 3, the pink in glacé cherries and some pink candy. The United States moved to revoke its use in food in 2025. from source

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Fig. 1 · 2D structure RDKit

SMILESC1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)I)O)I)I)O)I

Sources & methodology

PubChem CID
3259
Wikidata
Q420101
Structure
PubChem → RDKit
Data refreshed

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