Baby Safety / Compounds / Ponceau 4R (Cochineal Red A; E124)

Is Ponceau 4R (Cochineal Red A; E124) safe for babies and kids?

Elevated risk for kids

Infants are more vulnerable to Ponceau 4R (Cochineal Red A; E124) than children or adults due to immature hepatic/renal clearance, higher intake-to-body-weight ratio, rapid organ development, and increased gastrointestinal absorption.

What is ponceau 4r (cochineal red a; e124)?

The IUPAC name is trisodium;7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate.

Also known as: trisodium;7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate, C.I. Acid Red 18, Trisodium Salt, RefChem:1080550, DTXCID501507484.

IUPAC name: trisodium;7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate
CAS number: 2611-82-7
Molecular formula: C20H11N2Na3O10S3
Molecular weight: 604.5 g/mol
SMILES: C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C=CC4=CC(=CC(=C43)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+].[Na+]
PubChem CID: 17466

Risk for babies

Elevated risk

Neonates and infants up to 12 months have incomplete blood-brain barrier development, immature Phase I/II metabolic enzymes (particularly CYP3A4, UGT1A1), and higher gastrointestinal permeability. Equivalent doses produce higher internal concentrations and longer residence times.

What to do: Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

Risk for pregnant and nursing people

Context-dependent

Pregnancy alters the metabolism and distribution of Ponceau 4R (Cochineal Red A; E124), potentially increasing fetal exposure. The developing embryo/fetus is vulnerable during organogenesis (weeks 3-8) and neurological development. Placental transfer should be assumed.

No specific reproductive toxicity data identified, but pregnancy-specific safety data is limited for most chemicals. Precautionary minimization of exposure is recommended.

What to do: Minimize exposure during pregnancy and lactation. Consult healthcare provider regarding specific risks. Consider alternative products with lower hazard profiles.

Regulatory consensus

3 regulatory and scientific bodies have classified Ponceau 4R (Cochineal Red A; E124). The classifications differ — that's the data.

Agency	Year	Classification
IARC	2009	Not evaluated by IARC for carcinogenicity — Ponceau 4R is a synthetic monoazo trisulfonated dye (CAS 2611-82-7; trisodium (8Z)-7-oxo-8-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalene-1,3,5-trisulfonate; E124; Cochineal Red A; Acid Red 18) permitted in the EU and several countries but banned in the United States, Canada, Japan, Norway, and other jurisdictions; Ponceau 4R was the only synthetic food dye included in BOTH Mix A and Mix B of the Southampton 2007 hyperactivity study (McCann et al., Lancet) — significantly increasing hyperactivity scores in both 3-year-old and 8-9-year-old children in that crossover trial; EU Regulation 1333/2008 mandates a warning label ('may have an adverse effect on activity and attention in children') on all products containing E124; EFSA ADI: 4 mg/kg/day (2009); no carcinogenicity classification exists under any recognized regulatory framework
EPA CTX / Genetox	—	Genotoxicity: negative (Ames: negative, 0 positive / 2 negative reports)
EPA CTX / Genetox	—	Genotoxicity: negative (Ames: negative, 0 positive / 2 negative reports)

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where kids encounter ponceau 4r (cochineal red a; e124)

Industrial Facilities — Manufacturing plants, Chemical storage areas, Waste treatment sites
Occupational Environments — Factories, Warehouses, Transportation vehicles

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Ponceau 4R (Cochineal Red A; E124):

Natural dyes (indigo, madder, weld) where applicable
Trade-offs: Lower colorfastness. Limited palette. Higher cost per unit.

Relative cost: 2-5× conventional
Reactive dyes with lower aquatic toxicity
Trade-offs: Not suitable for all fiber types

Relative cost: 1.2-2×

Frequently asked questions

Is ponceau 4r (cochineal red a; e124) safe for kids?

What products contain ponceau 4r (cochineal red a; e124)?

Ponceau 4R (Cochineal Red A; E124) appears in: Manufacturing plants (Industrial facilities); Chemical storage areas (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).

What should I do if my child is exposed to ponceau 4r (cochineal red a; e124)?

Minimize infant exposure through source control. For breastfeeding mothers: reduce maternal exposure. For formula-fed infants: use certified low-migration bottles and verified water sources. Consult pediatrician regarding any concerns.

Why do regulators disagree about ponceau 4r (cochineal red a; e124)?

Ponceau 4R (Cochineal Red A; E124) has been classified by 3 agencies including IARC, EPA CTX / Genetox, EPA CTX / Genetox, with differing conclusions. Regulators apply different standards of evidence (animal data weighting, exposure-pattern assumptions, epidemiological power thresholds), which is why two scientific bodies can review the same data and reach different conclusions. See the regulatory consensus table on this page for the full picture.

See Ponceau 4R (Cochineal Red A; E124) in the baby app

Look up products containing ponceau 4r (cochineal red a; e124), compare to alternatives, and explore the full data record.

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Sources (1)

Ponceau 4R E124 CAS 2611-82-7 Cochineal Red A Acid Red 18 Trisulfonated Monoazo Dye; EFSA ADI 4 mg/kg/day 2009 Chronic Rat No Neoplasia NOAEL 1000 mg/kg/day Safety Factor 100; Southampton 2007 McCann Lancet Only Dye in BOTH Mix A 12.5mg Mix B 7.5mg; Hyperactivity 3yr 8-9yr Children Statistically Significant CGHAS; EU Regulation 1333/2008 Mandatory Warning Label Adverse Activity Attention; Banned US FDA Canada Japan Norway NZ; UK FSA 2009 Voluntary Removal Replaced Carmine Anthocyanins Beetroot Red; EFSA Azo Bond Gut Reductase Sulfonated Aromatic Amine; Aspirin Cross-Reactivity (2009) — regulatory

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →