Baby Safety / Compounds / Ethylene glycol (antifreeze)

Is Ethylene glycol (antifreeze) safe for babies and kids?

High risk for kids

Infants may be exposed to Ethylene glycol (antifreeze) through residual monomer migration from food-contact plastics, bottles, and packaging. Immature hepatic conjugation and renal clearance prolong internal exposure.

What is ethylene glycol (antifreeze)?

The IUPAC name is ethane-1,2-diol.

Also known as: ethane-1,2-diol, ETHYLENE GLYCOL, 1,2-ethanediol, glycol.

IUPAC name
ethane-1,2-diol
CAS number
107-21-1
Molecular formula
C2H6O2
Molecular weight
62.07 g/mol
SMILES
C(CO)O
PubChem CID
174

Risk for babies

High risk

Infants may be exposed to Ethylene glycol (antifreeze) through residual monomer migration from food-contact plastics, bottles, and packaging. Immature hepatic conjugation and renal clearance prolong internal exposure.

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

Prenatal exposure to residual Ethylene glycol (antifreeze) from food-contact materials is a concern due to potential developmental toxicity. Monomers may leach from plastics at elevated temperatures.

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

6 regulatory and scientific bodies have classified Ethylene glycol (antifreeze). The classifications differ — that's the data.

AgencyYearClassificationNotes
EPA CTX / Genetox—Genotoxicity: negative (Ames: negative, 0 positive / 6 negative reports)
EPA CTX / Genetox—Genotoxicity: negative (Ames: negative, 0 positive / 6 negative reports)
EPA CTX / Skin-Eye—Eye Irritation: Category 2B (score: moderate)
EPA CTX / Skin-Eye—Skin Irritation: Category 2 (score: high)
EPA CTX / Skin-Eye—Eye Irritation: Category 6.4A (Category 2A) (score: high)
EPA CTX / Skin-Eye—skin sensitisation: in vivo (non-LLNA): Not likely to be sensitizing (score: low)

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 ethylene glycol (antifreeze)

  • 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 Ethylene glycol (antifreeze):

  • Physical/mechanical pest control (IPM)
    Trade-offs: More labor-intensive. May not be sufficient for severe infestations.
    Relative cost: 1.2-2×

Frequently asked questions

Is ethylene glycol (antifreeze) safe for kids?

Infants may be exposed to Ethylene glycol (antifreeze) through residual monomer migration from food-contact plastics, bottles, and packaging. Immature hepatic conjugation and renal clearance prolong internal exposure.

What products contain ethylene glycol (antifreeze)?

Ethylene glycol (antifreeze) 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 ethylene glycol (antifreeze)?

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 ethylene glycol (antifreeze)?

Ethylene glycol (antifreeze) has been classified by 6 agencies including EPA CTX / Genetox, EPA CTX / Genetox, EPA CTX / Skin-Eye, EPA CTX / Skin-Eye, EPA CTX / Skin-Eye, 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 Ethylene glycol (antifreeze) in the baby app

Look up products containing ethylene glycol (antifreeze), compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (2)
  1. ASPCA Animal Poison Control Center: Ethylene Glycol (Antifreeze) Toxicity (2021) — report
  2. Dial SM: Antifreeze ingestion: treatment. Vet Clin North Am Small Anim Pract 24(2):307–320 (1994) — journal

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 →