Baby Safety / Compounds / PFBS (perfluorobutane sulfonate) and analogs

Is PFBS (perfluorobutane sulfonate) and analogs safe for babies and kids?

Severe risk for kids

Infants accumulate PFBS (perfluorobutane sulfonate) and analogs through breast milk (bioconcentration), placental transfer, and dust ingestion. Persistent pollutants concentrate in fatty tissues with extended half-lives in developing organisms.

What is pfbs (perfluorobutane sulfonate) and analogs?

The IUPAC name is azanium 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoate.

Also known as: azanium 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoate, Ammonium perfluorooctanoate, Ammonium pentadecafluorooctanoate, Ammonium perfluorocaprylate.

IUPAC name
azanium 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoate
CAS number
3825-26-1
Molecular formula
C8H4F15NO2
Molecular weight
431.1 g/mol
SMILES
[NH4+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F
PubChem CID
2776282

Risk for babies

Severe risk

Infants accumulate PFBS (perfluorobutane sulfonate) and analogs 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

High risk

GHS Danger classification. Classified for reproductive toxicity.

Regulatory consensus

3 regulatory and scientific bodies have classified PFBS (perfluorobutane sulfonate) and analogs. The classifications differ — that's the data.

AgencyYearClassificationNotes
GHS—Organ damage
GHS—Reproductive toxicity
GHS—Inhalation hazard

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 pfbs (perfluorobutane sulfonate) and analogs

  • Industrial Facilities — Manufacturing plants, Waste treatment sites
  • Occupational Environments — Factories, Warehouses

Safer alternatives

Lower-risk approaches that achieve a similar outcome to PFBS (perfluorobutane sulfonate) and analogs:

  • Non-fluorinated durable water repellents (DWR)
    Trade-offs: Silicone-based or dendrimer-based DWR. Comparable water repellency, lower oil repellency. Not persistent. Requires more frequent reapplication on textiles. Cost comparable to C6.
    Relative cost: 1.2-2×
  • C6 fluorotelomer chemistry
    Trade-offs: Shorter PFAS chain (6 carbons vs 4). Better performance than non-fluorinated. Still generates persistent short-chain PFAS. Industry default since C8 phase-out. Not a true solution.
    Relative cost: 1.2-2×
  • Wax-based treatments (paraffin, carnauba)
    Trade-offs: Fully biodegradable. Adequate for light water repellency. Poor oil/stain resistance. Needs frequent reapplication. Lowest cost option.
    Relative cost: 1.2-2×

Frequently asked questions

Is pfbs (perfluorobutane sulfonate) and analogs safe for kids?

Infants accumulate PFBS (perfluorobutane sulfonate) and analogs 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 pfbs (perfluorobutane sulfonate) and analogs?

PFBS (perfluorobutane sulfonate) and analogs appears in: Manufacturing plants (Industrial facilities); Waste treatment sites (Industrial facilities); Factories (Occupational environments); Warehouses (Occupational environments).

What should I do if my child is exposed to pfbs (perfluorobutane sulfonate) and analogs?

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 pfbs (perfluorobutane sulfonate) and analogs?

PFBS (perfluorobutane sulfonate) and analogs has been classified by 3 agencies including GHS, GHS, GHS, 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 PFBS (perfluorobutane sulfonate) and analogs in the baby app

Look up products containing pfbs (perfluorobutane sulfonate) and analogs, compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (3)
  1. PubChem Compound CID 2776282 — database
  2. EPA CompTox Chemicals Dashboard — DTXSID8037708 — epa
  3. ATSDR Toxicological Profile — CAS 3825-26-1 — reference

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 →