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CAS 65545-80-4

Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, ether with α-fluoro-ω-(2-hydroxyethyl)poly(difluoromethylene) (1:1)

This fluorinated surfactant is part of the PFAS family, used to help liquids spread in coatings, inks, and industrial cleaners. Like many PFAS, it persists in water, soil, and dust and can travel far from where it was used [1][2].

Where It Comes From

Made for stain-, water-, and oil-resistant performance in paints, floor finishes, metal plating, textiles, and some firefighting foams; released during manufacture, use, and disposal [2].

How You Are Exposed

Drinking water near contaminated sites, indoor dust, consumer products treated with PFAS, and workplace air or skin contact in PFAS-related jobs [1][2].

Why It Matters

Data on this specific chemical are limited, but PFAS exposure has been linked to immune effects, higher cholesterol, liver and developmental changes, and certain cancers (e.g., PFOA) [1][3][4].

Who Is at Risk

People in areas with PFAS-contaminated water, workers in plating, coatings, or foam, and pregnant people, infants, and children [1][2].

How to Lower Your Exposure

Check local water reports; use certified filters (activated carbon or reverse osmosis); reduce PFAS-treated products; follow fish advisories; wet-dust and vacuum with HEPA; follow workplace protections [1][2][5].

References

  1. [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021. https://www.atsdr.cdc.gov/toxprofiles/tp200.pdf
  2. [2]U.S. EPA. PFAS Explained / Risks of PFAS. https://www.epa.gov/pfas
  3. [3]NTP. Immunotoxicity Associated with Exposure to PFOA or PFOS. 2016. https://ntp.niehs.nih.gov/whatwestudy/assessments/noncancer/ongoing/immune
  4. [4]IARC. PFOA carcinogenic to humans; PFOS possibly carcinogenic (Monographs Vol. 135). 2023. https://monographs.iarc.who.int
  5. [5]ATSDR/CDC. PFAS and Your Health: Reducing Exposure. https://www.atsdr.cdc.gov/pfas/

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