Baby Safety / Compounds / TCEP (Tris(2-chloroethyl) phosphate)

Is TCEP (Tris(2-chloroethyl) phosphate) safe for babies and kids?

Elevated risk for kids

Infants face disproportionate exposure to TCEP (Tris(2-chloroethyl) phosphate) through dust ingestion (hand-to-mouth behavior), breast milk transfer, and dermal contact with treated textiles in cribs and car seats.

What is tcep (tris(2-chloroethyl) phosphate)?

The IUPAC name is tris(2-chloroethyl) phosphate.

Also known as: tris(2-chloroethyl) phosphate, Tris(2-chloroethyl)phosphate, Celluflex, Disflamoll TCA.

IUPAC name
tris(2-chloroethyl) phosphate
CAS number
115-96-8
Molecular formula
C6H12Cl3O4P
Molecular weight
285.5 g/mol
SMILES
C(CCl)OP(=O)(OCCCl)OCCCl
PubChem CID
8295

Risk for babies

Elevated risk

Infants face disproportionate exposure to TCEP (Tris(2-chloroethyl) phosphate) through dust ingestion (hand-to-mouth behavior), breast milk transfer, and dermal contact with treated textiles in cribs and car seats.

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

High risk

Prenatal exposure to TCEP (Tris(2-chloroethyl) phosphate) through dust inhalation and dietary intake can affect fetal thyroid function and neurodevelopment. Flame retardants accumulate in breast milk.

Known reproductive toxicant (GHS H360) or confirmed endocrine disruptor. Placental transfer is presumed. Fetal exposure during critical developmental windows may cause structural malformations, growth restriction, or functional deficits.

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 TCEP (Tris(2-chloroethyl) phosphate). The classifications differ — that's the data.

AgencyYearClassificationNotes
EPA CTX / IARC—Group 3 - Not classifiable as to its carcinogenicity to humans
EPA CTX / CalEPA—Known human carcinogen
EPA CTX / Genetox—Genotoxicity: positive (Ames: negative, 1 positive / 3 negative reports)
EPA CTX / Genetox—Genotoxicity: positive (Ames: negative, 1 positive / 3 negative reports)
EPA CTX / Skin-Eye—Eye Irritation: Category 2B (score: moderate)
EPA CTX / Skin-Eye—Skin Irritation: Not classified (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 tcep (tris(2-chloroethyl) phosphate)

  • 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 TCEP (Tris(2-chloroethyl) phosphate):

  • Inherently flame-resistant materials (wool, modacrylic, Nomex)
    Trade-offs: Higher material cost. Limited color/texture options.
    Relative cost: 1.2-2×
  • Barrier fabric technology
    Trade-offs: Adds manufacturing step and cost
    Relative cost: 1.2-2×

Frequently asked questions

Is tcep (tris(2-chloroethyl) phosphate) safe for kids?

Infants face disproportionate exposure to TCEP (Tris(2-chloroethyl) phosphate) through dust ingestion (hand-to-mouth behavior), breast milk transfer, and dermal contact with treated textiles in cribs and car seats.

What products contain tcep (tris(2-chloroethyl) phosphate)?

TCEP (Tris(2-chloroethyl) phosphate) 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 tcep (tris(2-chloroethyl) phosphate)?

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 tcep (tris(2-chloroethyl) phosphate)?

TCEP (Tris(2-chloroethyl) phosphate) has been classified by 6 agencies including EPA CTX / IARC, EPA CTX / CalEPA, EPA CTX / Genetox, EPA CTX / Genetox, 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 TCEP (Tris(2-chloroethyl) phosphate) in the baby app

Look up products containing tcep (tris(2-chloroethyl) phosphate), compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (2)
  1. US EPA: Toxicological Review of Tris(2-chloroethyl) Phosphate (TCEP), IRIS Assessment, Group B2 Probable Carcinogen, Drinking Water Candidate Contaminant List CCL4, Neurotoxicity (2012) (2012) — regulatory
  2. California OEHHA: Tris(2-chloroethyl) Phosphate (TCEP) Listed under Proposition 65 as a Carcinogen; NSRL Calculation; EU Toy Safety Directive Restriction; Flame Retardant Monitoring Studies (2013) (2013) — 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 →