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CAS 4980-53-4

2-Propenoic acid, 2-methyl-, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,16-nonacosafluorohexadecyl ester

This fluorinated methacrylate is used to make water- and stain‑repellent coatings on textiles, paper, leather, and other surfaces. It is a PFAS, a class of chemicals that hardly break down and can transform into other long‑lasting PFAS in the environment [1][2].

Where It Comes From

Made for fluorinated polymers and surface treatments; can be present as residual monomer in coated products and released during manufacturing or use [1][2].

How You Are Exposed

Breathing spray mists or dust from treated items, skin contact during application or at work, and eating/drinking contaminated food or water near PFAS sources [1][2].

Why It Matters

PFAS persist and can build up in people; exposure to some PFAS is linked with higher cholesterol, immune and liver effects, and developmental impacts, and some (e.g., PFOA) are carcinogenic to humans [1][2][3]. Fluorinated acrylates can degrade into persistent perfluoroalkyl acids [1][2].

Who Is at Risk

Workers making or applying fluorinated coatings; people living near PFAS production or waste sites; pregnant people, infants, and children [1][2].

How to Lower Your Exposure

Choose PFAS‑free products; avoid or carefully use waterproofing/stain‑repellent sprays with good ventilation and protection; damp‑dust and HEPA‑vacuum; check local water and consider certified filters effective for PFAS [1][2][4].

References

  1. [1]ATSDR. Toxicological Profile for Perfluoroalkyls (PFAS), 2021. https://www.atsdr.cdc.gov/toxprofiles/tp200.pdf
  2. [2]U.S. EPA. Learn about PFAS. https://www.epa.gov/pfas/learn-about-pfas
  3. [3]IARC. Carcinogenicity of PFOA and PFOS (Press Release 264), 2023. https://www.iarc.who.int/wp-content/uploads/2023/12/pr264_E.pdf
  4. [4]ATSDR/CDC. PFAS and Your Health: Steps You Can Take. https://www.atsdr.cdc.gov/pfas/health-effects/exposure/index.html

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