Baby Safety / Compounds / 8:2 FTS (8:2 Fluorotelomer sulfonate)

Is 8:2 FTS (8:2 Fluorotelomer sulfonate) safe for babies and kids?

High risk for kids

Infants accumulate 8:2 FTS (8:2 Fluorotelomer sulfonate) through breast milk (bioconcentration), placental transfer, and dust ingestion. Persistent pollutants concentrate in fatty tissues with extended half-lives in developing organisms.

What is 8:2 fts (8:2 fluorotelomer sulfonate)?

The IUPAC name is 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane-1-sulfonic acid.

Also known as: 1h,1h,2h,2h-perfluorooctanesulfonic acid, 1-Octanesulfonic acid, 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoro-, 3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluorooctanesulphonic acid, RefChem:435180.

IUPAC name
3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane-1-sulfonic acid
CAS number
39108-34-4
Molecular formula
C8H5F13O3S
Molecular weight
428.17 g/mol
SMILES
C(CS(=O)(=O)O)C(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F
PubChem CID
119688

Risk for babies

High risk

Infants accumulate 8:2 FTS (8:2 Fluorotelomer sulfonate) through breast milk (bioconcentration), placental transfer, and dust ingestion. Persistent pollutants concentrate in fatty tissues with extended half-lives in developing organisms.

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

Elevated risk

8:2 FTS (8:2 Fluorotelomer sulfonate) persists in maternal adipose tissue and is mobilized during pregnancy and lactation. Lipophilic pollutants concentrate in breast milk and cross the placenta during critical developmental windows.

Suspected reproductive toxicant (GHS H361) or suspected endocrine disruptor. Precautionary approach warranted. Animal studies or limited human data suggest developmental toxicity potential.

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

Regulatory consensus

2 regulatory and scientific bodies have classified 8:2 FTS (8:2 Fluorotelomer sulfonate). The classifications differ — that's the data.

AgencyYearClassificationNotes
EPA——
DoD——Key analyte in DoD PFAS site investigations

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 8:2 fts (8:2 fluorotelomer sulfonate)

  • Firefighting Foam — AFFF concentrates, Fire training area runoff, Airport fire suppression systems
    Primary marker for AFFF contamination at military/airport sites
  • Drinking Water — Groundwater near AFFF sites, Municipal water near military bases
    EPA UCMR5 analyte — detected at multiple DoD installations

Safer alternatives

Lower-risk approaches that achieve a similar outcome to 8:2 FTS (8:2 Fluorotelomer sulfonate):

  • Fluorine-free firefighting foams (F3)
    Trade-offs: Functional performance and cost-effectiveness may vary by application.
    Relative cost: Lower (ingredient elimination)
  • Short-chain 6:2 FTS-based foams (less bioaccumulative transformation products)
    Trade-offs: Functional performance and cost-effectiveness may vary by application.
    Relative cost: 1.2-2×

Frequently asked questions

Is 8:2 fts (8:2 fluorotelomer sulfonate) safe for kids?

Infants accumulate 8:2 FTS (8:2 Fluorotelomer sulfonate) through breast milk (bioconcentration), placental transfer, and dust ingestion. Persistent pollutants concentrate in fatty tissues with extended half-lives in developing organisms.

What products contain 8:2 fts (8:2 fluorotelomer sulfonate)?

8:2 FTS (8:2 Fluorotelomer sulfonate) appears in: AFFF concentrates (firefighting foam); Fire training area runoff (firefighting foam); Groundwater near AFFF sites (drinking water); Municipal water near military bases (drinking water).

What should I do if my child is exposed to 8:2 fts (8:2 fluorotelomer sulfonate)?

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 8:2 FTS (8:2 Fluorotelomer sulfonate) in the baby app

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Sources (1)
  1. — expert_curation

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 →