Baby Safety / Compounds / 2-4-5-T

Is 2-4-5-T safe for babies and kids?

High risk for kids

Infants face elevated risk from 2-4-5-T through dietary residues and environmental drift. Developing organ systems and immature detoxification capacity increase vulnerability.

What is 2-4-5-t?

Also known as: 2,4,5-trichlorophenoxyacetic acid, 2,4,5-T, 2-(2,4,5-trichlorophenoxy)acetic acid, Trioxon.

CAS number
93-76-5
Molecular formula
C8H5Cl3O3
Molecular weight
255.5 g/mol
SMILES
C1=C(C(=CC(=C1Cl)Cl)Cl)OCC(=O)O
PubChem CID
1480

Risk for babies

High risk

Infants face elevated risk from 2-4-5-T through dietary residues and environmental drift. Developing organ systems and immature detoxification capacity increase vulnerability.

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

Regulatory consensus

1 regulatory bodyhas classified 2-4-5-T.

AgencyYearClassificationNotes
EDC Assessment—Suspected endocrine disruptor

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 2-4-5-t

  • Agricultural Products — crop treatment

Safer alternatives

Lower-risk approaches that achieve a similar outcome to 2-4-5-T:

  • Organic mulching; Mechanical weeding; IPM
    Trade-offs: Labor-intensive; effective for small-scale or precision applications; no chemical residues; not scalable to large commercial operations without significant cost increase.
    Relative cost: 2-5× conventional

Frequently asked questions

Is 2-4-5-t safe for kids?

Infants face elevated risk from 2-4-5-T through dietary residues and environmental drift. Developing organ systems and immature detoxification capacity increase vulnerability.

What products contain 2-4-5-t?

2-4-5-T appears in: crop treatment (Agricultural products).

What should I do if my child is exposed to 2-4-5-t?

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.

See 2-4-5-T in the baby app

Look up products containing 2-4-5-t, compare to alternatives, and explore the full data record.

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Sources (1)
  1. PubChem (2026) — database

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 →