Official EU label nameGlossary entry 28678

TETRAPOTASSIUM PYROPHOSPHATE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:7320-34-5

EC:230-785-7

Ingredient index records:

TETRAPOTASSIUM PYROPHOSPHATE

Cosmetic functions: BUFFERING, CHELATING, ORAL CARE

Tetrapotassium pyrophosphate

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1 matched or reported name

TETRAPOTASSIUM PYROPHOSPHATE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name TETRAPOTASSIUM PYROPHOSPHATE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 7320-34-5

CAS 7320-34-5PubChem CID 23740

Potassium pyrophosphate

Potassium tetrapyrophosphate is a whitish-colored powdered solid. It is toxic by ingestion, and/or inhalation. Contact with the substance should be avoided. — CAMEO Chemicals

IUPAC name: tetrapotassium;phosphonato phosphate

Molecular formula: K4O7P2
Molecular weight: 330.34 g/mol
Exact mass: 329.7667523 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

Potassium diphosphateTKPPTETRAPOTASSIUM PYROPHOSPHATEDiphosphoric acid, tetrapotassium saltTetrapotassium diphosphoratePyrophosphoric acid, tetrapotassium saltB9W4019H5GRefChem:897424

16 more reported names

230-785-7Tetrapotassium diphosphatePotassium pyrophospateDiphosphoric acid, potassium saltEINECS 230-785-7UNII-B9W4019H5GTetra Potassium PyrophosphatePotassium pyrophosphate AnhydrousEC 230-785-7Diphosphoric acid, potassium salt (1:4)tetrapotassium phosphonato phosphateEINECS 233-338-4Diphosphoric acid tetrapotassium saltK4O7P2Potassium diphosphate tetrabasicPotassium pyrophosphate, anhydrous

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External database identifiers

EPA DTXSID:DTXSID3036446

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

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

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 US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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