E451i — Pentasodium triphosphate

Status in the United States (FDA)

Listed in the FDA inventory “Substances Added to Food”, with the regulations 21 CFR 74.302, 172.892, 173.310, 182.90, 182.1810, 182.6810.

Technical effects listed by the FDA: anticaking agent or free-flow agent, antioxidant, drying agent, emulsifier or emulsifier salt, humectant, ph control agent, sequestrant, stabilizer or thickener, texturizer

The inventory is a partial list, and a listing is not an FDA approval of every use; the regulations set the permitted uses.

U.S. Food and Drug Administration, Substances Added to Food (updated 9/8/2026), public domain · CAS 7758-29-4 via Wikidata (CC0)