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CAS 7722-88-5

CAS 7722-88-5 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7722-88-5
CAS 7722-88-5PubChem CID 24403

Tetrasodium Pyrophosphate

Sodium diphosphate is an inorganic sodium salt comprised of a diphosphate(4) anion and four sodium(1+) cations. More commonly known as tetrasodium pyrophosphate, it finds much use in the food industry as an emulsifier and in dental hygiene as a calcium-chelating salt. It has a role as a chelator, a food emulsifier and a food thickening agent. It contains a diphosphate(4-). — ChEBI

IUPAC name
tetrasodium;phosphonato phosphate
Molecular formula
Na4O7P2
Molecular weight
265.90 g/mol
Exact mass
265.87100346 Da
Topological polar surface area
136.0 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
7
Covalent units
5
Defined stereocentres
0

Also known as

Sodium pyrophosphateTSPPTetrasodium diphosphatePhosphotexDiphosphoric acid, tetrasodium saltSodium diphosphateVictor TSPPNatrium pyrophosphat
16 more reported names
Sodium diphosphate, anhydrousPyrophosphoric acid tetrasodium saltSodium phosphate (Na4P2O7)Sodium diphosphate (Na4P2O7)Sodium pyrophosphate, tetrabasicSodium pyrophosphate (Na4P2O7)Anhydrous tetrasodium pyrophosphateTetrasodium pyrophosphate, anhydrousPyrophosphoric acid, tetrasodium saltNSC-56751CHEBI:71240Tetrasodium pyrophosphate (anhydrous)V34 Colour CorrectorRefChem:56039231-767-1Tetranatriumpyrophosphat
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 7722-88-5

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How CAS 7722-88-5 is used on this site

CAS 7722-88-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 7722-88-5 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.