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CAS 7601-54-9 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 3877615/10/2010

TRISODIUM PHOSPHATE

Trisodium orthophosphate

TRISODIUM PHOSPHATE 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 7601-54-9

CAS 7601-54-9PubChem CID 24243

Trisodium Phosphate

Trisodium phosphate is a sodium phosphate. — ChEBI

IUPAC name: trisodium;phosphate

Molecular formula: Na3O4P
Molecular weight: 163.941 g/mol
Exact mass: 163.92272832 Da
Topological polar surface area: 86.3 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 4
Covalent units: 4
Defined stereocentres: 0

Also known as

Trisodium orthophosphateTrometeTribasic sodium phosphatePhosphoric acid, trisodium saltOakitePhosphoric acid trisodium saltSodium phosphate, anhydrousTrinatriumphosphat

16 more reported names

Nutrifos STPDri-TriAntisal 4Tertiary sodium phosphateSodium phosphate (Na3PO4)Tribasic sodium orthophosphateSodium tertiary phosphateEmulsiphos 440/660Sodium orthophosphate, tertiaryTribasic sodium-phosphateSX01TZO3QZSodium phosphate (tribasic)INS-339(III)E-339(III)SODIUM PHOSPHATE, TRIBASIC, ANHYDROUSSodium phosphate,tribasic

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEBI:CHEBI:37583
ChEMBL:CHEMBL363100
EPA DTXSID:DTXSID2035223

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 TRISODIUM PHOSPHATE

INCI name

TRISODIUM PHOSPHATE

Description

Trisodium orthophosphate

Record provenance

Inventory reference: 38776
Imported identity: TRISODIUM PHOSPHATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for TRISODIUM PHOSPHATE

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Key data

CAS

7601-54-9

231-509-8

Restriction

—

Function

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.

Official EU ingredient-name evidence

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

#29476 · TRISODIUM PHOSPHATE

Ingredients with overlapping formulation functions

TRISODIUM ETHYLENEDIAMINE DISUCCINATECHELATING

TRISODIUM FRUCTOSE DIPHOSPHATEANTIOXIDANT, CHELATING

TRISODIUM HEDTACHELATING

TRISODIUM NTACHELATING

TRISODIUM SULFOSUCCINATEBUFFERING, CHELATING, SURFACTANT - CLEANSING, SURFACTANT - HYDROTROPE

VANILLYLIDENE PENTANEDIONEANTIOXIDANT, CHELATING, SKIN PROTECTING

VERBASCOSIDEANTIOXIDANT, BLEACHING, CHELATING, SKIN PROTECTING

ZINC HEXAMETAPHOSPHATEANTICORROSIVE, BUFFERING, CHELATING

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 TRISODIUM PHOSPHATE appears in the CosIng inventory

The CosIng inventory lists TRISODIUM PHOSPHATE 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.

TRISODIUM PHOSPHATE is also tagged with 2 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

TRISODIUM PHOSPHATE 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, TRISODIUM PHOSPHATE carries the following function designation(s):

CAS 7601-54-9 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 TRISODIUM PHOSPHATE

This page reproduces the CosIng inventory entry for TRISODIUM PHOSPHATE 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 TRISODIUM PHOSPHATE 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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