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CAS 7722-88-5 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 3857108/11/2018

TETRASODIUM PYROPHOSPHATE

Tetrasodium pyrophosphate

TETRASODIUM PYROPHOSPHATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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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 Å²
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

ChEBI:CHEBI:71240
ChEMBL:CHEMBL450079
EPA DTXSID:DTXSID9042465

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

Inventory details for TETRASODIUM PYROPHOSPHATE

INCI name

TETRASODIUM PYROPHOSPHATE

INN name

sodium pyrophosphate

Description

Tetrasodium pyrophosphate

Record provenance

Inventory reference: 38571
Imported identity: TETRASODIUM PYROPHOSPHATE
Source update: 08/11/2018

European Commission CosIng source notes

Annex records for TETRASODIUM PYROPHOSPHATE

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Key data

CAS

7722-88-5

231-767-1

Restriction

—

Function

ANTICAKING: Preventing agglomeration of particulate solids into lumps or hard masses (cohesive cake), thus allowing free flow of particles.
BUFFERING: Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.
CHELATING: Forming complexes with metal ions which could affect the stability and/or appearance of cosmetics.
ORAL CARE: Providing cosmetic effects to the oral cavity, e.g. cleansing, deodorising, protecting.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#28693 · TETRASODIUM PYROPHOSPHATE

Ingredients with overlapping formulation functions

SOLUM DIATOMEAEABRASIVE, ABSORBENT, ANTICAKING, OPACIFYING

SOLUM FULLONUMABSORBENT, ANTICAKING, BULKING, GEL FORMING, OPACIFYING, VISCOSITY CONTROLLING

STARCH PHOSPHATEABRASIVE; ABSORBENT; ANTICAKING; ANTI-SEBORRHEIC; ANTIFOAMING; ANTI-SEBUM; ORAL CARE

TALCABRASIVE, ABSORBENT, ANTICAKING, BULKING, OPACIFYING, SKIN PROTECTING

TRICALCIUM PHOSPHATEABRASIVE, ANTICAKING, FRAGRANCE, OPACIFYING, ORAL CARE

TRIMAGNESIUM PHOSPHATEANTICAKING, BULKING, OPACIFYING

TRIMETHYLSILOXY/POLYMETHYLSILSESQUIOXANEANTICAKING, BINDING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

ZEA MAYS STARCHABRASIVE, ABSORBENT, ANTICAKING, SKIN PROTECTING, VISCOSITY CONTROLLING

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How TETRASODIUM PYROPHOSPHATE appears in the CosIng inventory

The CosIng inventory lists TETRASODIUM PYROPHOSPHATE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

TETRASODIUM PYROPHOSPHATE is also tagged with 4 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

TETRASODIUM PYROPHOSPHATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, TETRASODIUM PYROPHOSPHATE carries the following function designation(s):

CAS 7722-88-5 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for TETRASODIUM PYROPHOSPHATE

This page reproduces the CosIng inventory entry for TETRASODIUM PYROPHOSPHATE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research TETRASODIUM PYROPHOSPHATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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