1-Propanaminium, 3-[[(heptadecafluorooctyl)sulfonyl]amino]-N,N,N- trimethyl-, chloride

Made for stain-, water-, and oil-resistant treatments in textiles, paper, and industrial coatings; used as a specialty surfactant. Some PFAS “precursors” can transform into more persistent PFAS in the environment [1][2].

Drinking water near manufacturing, firefighting foam use, or waste sites; indoor dust from treated carpets/upholstery; food (packaging, fish/wildlife from contaminated areas); workplace exposure where PFAS are made or used [1][2][3].

Studies of related PFAS link exposure with increased cholesterol, reduced vaccine response (immune effects), liver and thyroid changes, pregnancy-induced hypertension, and certain cancers (e.g., kidney/testicular for PFOA) [1][2][4][5].

Workers handling PFAS; residents near PFAS facilities or airports/military bases with AFFF; pregnant people, fetuses, infants/young children; people who eat a lot of locally caught fish from contaminated waters [1][2][3].

Use certified water filters (activated carbon or reverse osmosis) for PFAS; follow local water and fish advisories; choose PFAS-free/“fluorine-free” products; skip optional stain-resistant treatments; reduce indoor dust with HEPA vacuuming and wet mopping [2][3].