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CAS 178535-23-4

Fatty acids, linseed-oil, γ-ω-perfluoro-C8-14-alkyl esters

This PFAS-based fluorinated coating makes fabrics, paper, and surfaces repel water and oil. Data on this exact mixture are limited, but PFAS persist and some related long‑chain PFAS build up in people and can harm health [1][2].

Where It Comes From

Used as a stain/grease‑repellent for textiles, leather, paper/food packaging, stone/wood sealers, and paints; this mixture can break down to long‑chain perfluoroalkyl acids (C8–C14) [1][2].

How You Are Exposed

Contact with treated products and household dust; eating food from grease‑resistant wrappers; drinking contaminated water; workplace use of fluorinated coatings [1][2].

Why It Matters

PFAS are very persistent; long‑chain PFAS are bioaccumulative. Health effects seen with related PFAS include higher cholesterol, liver changes, reduced vaccine antibody response, and some cancers (e.g., PFOA) [1][3][4].

Who Is at Risk

Workers in textile, paper‑coating, painting/sealing jobs; people near PFAS manufacturing or contaminated water; pregnant people and infants [1][2][3].

How to Lower Your Exposure

Choose PFAS‑free or stain‑resistant‑free goods; limit grease‑resistant food packaging; clean dust with wet methods; at work, use ventilation and PPE; check water reports and consider activated carbon or reverse osmosis filters [1][2][5].

References

  1. [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS). 2021.
  2. [2]U.S. EPA. PFAS Explained.
  3. [3]NTP. Immunotoxicity of PFOA and PFOS (NTP Monograph). 2016.
  4. [4]IARC. PFOA (Group 1) and PFOS (Monographs Vol. 134). 2023.
  5. [5]CDC/ATSDR. PFAS and Your Health: Information for Consumers and Communities.

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