Pet Safety / Compounds / PFDS (Perfluorodecane sulfonic acid)

Is PFDS (Perfluorodecane sulfonic acid) safe for dogs and cats?

Elevated risk for pets

Bioaccumulative in domestic animals. Limited species-specific data.

What is pfds (perfluorodecane sulfonic acid)?

The IUPAC name is 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-henicosafluorodecane-1-sulfonic acid.

Also known as: perfluorodecane sulfonic acid, 335-77-3, perfluorodecanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-henicosafluorodecane-1-sulfonic acid.

IUPAC name
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-henicosafluorodecane-1-sulfonic acid
CAS number
335-77-3
Molecular formula
C10HF21O3S
Molecular weight
600.15 g/mol
SMILES
C(C(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(F)F)(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F
PubChem CID
67636

Risk for dogs

Elevated risk

Bioaccumulative in domestic animals. Limited species-specific data.

Risk for cats

Elevated risk

Expected high bioaccumulation. Indoor exposure pathway via dust ingestion.

Regulatory consensus

2 regulatory and scientific bodies have classified PFDS (Perfluorodecane sulfonic acid). The classifications differ — that's the data.

AgencyYearClassificationNotes
Stockholm Convention——
ECHA——

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 pets encounter pfds (perfluorodecane sulfonic acid)

  • Drinking Water — Groundwater near fluorochemical plants
    Less common in water than PFOS due to lower production volume but very persistent
  • Wildlife — Polar bear liver tissue, Dolphin plasma, Bald eagle blood
    Detected in Arctic wildlife indicating long-range transport
  • Industrial Discharge — Fluorochemical manufacturing effluent
    Historical manufacturing byproduct

Safer alternatives

Lower-risk approaches that achieve a similar outcome to PFDS (Perfluorodecane sulfonic acid):

  • Non-fluorinated surfactants for chrome plating
    Trade-offs: Hydrocarbon-based mist suppressants available. Lower surface tension performance than PFDS. Adequate for most applications. Being adopted under EPA PFAS Action Plan.
    Relative cost: 1.2-2×
  • Closed-loop chrome plating systems
    Trade-offs: Engineering control that eliminates mist rather than suppressing it. High capital cost ($50K-200K retrofit). Eliminates PFAS discharge entirely. ROI 3-5 years.
    Relative cost: 1.2-2×

Frequently asked questions

Is pfds (perfluorodecane sulfonic acid) safe for pets?

Bioaccumulative in domestic animals. Limited species-specific data.

What products contain pfds (perfluorodecane sulfonic acid)?

PFDS (Perfluorodecane sulfonic acid) appears in: Groundwater near fluorochemical plants (drinking water); Polar bear liver tissue (wildlife); Dolphin plasma (wildlife); Fluorochemical manufacturing effluent (industrial discharge).

See PFDS (Perfluorodecane sulfonic acid) in the pets app

Look up products containing pfds (perfluorodecane sulfonic acid), compare to alternatives, and explore the full data record.

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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 →