1-Octanesulfonamide, N-ethyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-[2-(phosphonooxy)ethyl]-, diammonium salt

Past use in paper and textile treatments; releases during manufacturing and product use; degrades in the environment to PFOS and related PFAS [1][2].

Eating food from grease‑resistant packaging, drinking contaminated water, indoor dust, and certain workplaces (paper/textile treatment, fluorochemical production) [1][2][4].

PFAS are very persistent and can accumulate in the body. PFOS exposure is linked to higher cholesterol, liver enzyme changes, reduced vaccine response, and developmental effects; immune effects are supported by human evidence [1][2][3].

Workers handling PFAS, people in areas with PFAS‑contaminated water, pregnant people and infants, and those eating fish from contaminated waters [1][4].

Check local PFAS water results; consider home treatment (activated carbon or reverse osmosis) to reduce PFAS; limit use of grease‑resistant paper and older stain‑repellent products; follow fish advisories; clean with damp dusting/HEPA vacuum; use workplace hygiene and PPE [2][4].