Baby Safety / Compounds / Perfluorooctane sulfonamide (PFOSA)

Is Perfluorooctane sulfonamide (PFOSA) safe for babies and kids?

High risk for kids

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

What is perfluorooctane sulfonamide (pfosa)?

The IUPAC name is 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonamide.

Also known as: 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonamide, Perfluorooctanesulfonamide, Perfluorooctane sulfonamide, Perfluoroctylsulfonamide.

IUPAC name
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonamide
CAS number
754-91-6
Molecular formula
C8H2F17NO2S
Molecular weight
499.15 g/mol
SMILES
C(C(C(C(C(F)(F)S(=O)(=O)N)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F
PubChem CID
69785

Risk for babies

High risk

Infants accumulate Perfluorooctane sulfonamide (PFOSA) 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

Perfluorooctane sulfonamide (PFOSA) 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 Perfluorooctane sulfonamide (PFOSA). The classifications differ — that's the data.

AgencyYearClassificationNotes
IARC—Group 2
UNEP—Persistent Organic Pollutant (POP)

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 perfluorooctane sulfonamide (pfosa)

  • 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 Perfluorooctane sulfonamide (PFOSA):

  • Exposure reduction (environmental contaminant)
    Trade-offs: Removes 95-99% of dissolved contaminants including metals, PFAS, nitrates; wastes 2-4 gallons per gallon produced (improving with newer systems); removes beneficial minerals; $0.05-0.25/gallon; requires pre-treatment for longevity.
    Relative cost: 1.2-2×

Frequently asked questions

Is perfluorooctane sulfonamide (pfosa) safe for kids?

Infants accumulate Perfluorooctane sulfonamide (PFOSA) 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 perfluorooctane sulfonamide (pfosa)?

Perfluorooctane sulfonamide (PFOSA) 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 perfluorooctane sulfonamide (pfosa)?

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 Perfluorooctane sulfonamide (PFOSA) in the baby app

Look up products containing perfluorooctane sulfonamide (pfosa), compare to alternatives, and explore the full data record.

Open in baby View raw API data

Sources (2)
  1. US EPA: Perfluorooctane Sulfonate (PFOS) and Perfluorooctane Sulfonamide (PFOSA) — Risk Assessment, Phase-Out, Scotchgard Legacy, and PFOSA-to-PFOS Metabolic Conversion (2016) — regulatory
  2. ATSDR: Clinical Guidance for Perfluoroalkyl and Polyfluoroalkyl Substances — PFOSA Precursor Status, PFOS Conversion, Neurotoxicity Profile, and Minimum Risk Levels (2021) — 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 →