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CAS 15578-26-4 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 3823215/10/2010

STANNOUS PYROPHOSPHATE

Diphosphoric acid, tin(2+) salt (1:2)

STANNOUS 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 15578-26-4

CAS 15578-26-4PubChem CID 66379

Stannous Pyrophosphate

IUPAC name: phosphonato phosphate;bis(tin(2+))

Molecular formula: O7P2Sn2
Molecular weight: 411.36 g/mol
Exact mass: 411.71574 Da
Topological polar surface area: 136.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 7
Covalent units: 3
Defined stereocentres: 0

Also known as

Diphosphoric acid, tin(2+) salt (1:2)Ditin pyrophosphateTin(2+) pyrophosphateStannous pyrophosphate [USAN]Pyro stannous phosphateMP 4018Tin(2+) diphosphate (1:2)Ditin(2+) pyrophosphate (4-)

16 more reported names

Diphosphoric acid, ditin(2+) saltEINECS 239-635-54DNT29EC86Phosphoric acid, tin(2+) salt (1:2)Diphosphoric acid, tin salt (1:2)Stannous pyrophosphate (USAN)Pyrophosphoric acid, tin(2+) salt (1:2)STANNOUS PYROPHOSPHATE [MI]MP-4018STANNOUS PYROPHOSPHATE [WHO-DD]Tin pyrophosphate (6CI,7CI)RefChem:888984STANNOUS PYROPHOSPHATE [INCI]Pyrophosphoric acid, tin(2+) salt (1:2) (8CI)Tin(II) pyrophosphateStannouspyrophosphate

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID30889643

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 STANNOUS PYROPHOSPHATE

INCI name

STANNOUS PYROPHOSPHATE

INN name

stannous pyrophosphate

Ph. Eur. name

stanni pyrophosphas

Description

Diphosphoric acid, tin(2+) salt (1:2)

Record provenance

Inventory reference: 38232
Imported identity: STANNOUS PYROPHOSPHATE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for STANNOUS PYROPHOSPHATE

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Key data

CAS

15578-26-4

239-635-5

Restriction

—

Function

ANTIPLAQUE: Helping protect against plaque.
ORAL CARE: Providing cosmetic effects to the oral cavity, e.g. cleansing, deodorising, protecting.
SOOTHING: Lightening discomfort of the skin or of the scalp.

Official EU ingredient-name evidence

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

#27684 · STANNOUS PYROPHOSPHATE

Ingredients with overlapping formulation functions

SODIUM GLYCEROPHOSPHATEANTIPLAQUE, ORAL CARE

SODIUM HYDROGENATED HONEY OCTENYLSUCCINATEANTIPLAQUE, CLEANSING, EMULSION STABILISING, HUMECTANT, SKIN CONDITIONING, SURFACTANT - CLEANSING, …

SODIUM MONOFLUOROPHOSPHATEANTIPLAQUE, ORAL CARE

STANNOUS FLUORIDEANTIPLAQUE, ORAL CARE

STREPTOCOCCUS ORALISANTIPLAQUE, ORAL CARE, SKIN CONDITIONING

TETRAPEPTIDE-61ANTIOXIDANT, ANTIPLAQUE, HAIR CONDITIONING, SKIN CONDITIONING, SKIN PROTECTING

TRIPEPTIDE-62ANTIOXIDANT, ANTIPLAQUE, ORAL CARE, SKIN PROTECTING

TRIPEPTIDE-66ANTIOXIDANT, ANTIPLAQUE, HAIR CONDITIONING, NAIL CONDITIONING, SKIN PROTECTING

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 STANNOUS PYROPHOSPHATE appears in the CosIng inventory

The CosIng inventory lists STANNOUS 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.

STANNOUS PYROPHOSPHATE is also tagged with 3 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

STANNOUS 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, STANNOUS PYROPHOSPHATE carries the following function designation(s):

CAS 15578-26-4 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 STANNOUS PYROPHOSPHATE

This page reproduces the CosIng inventory entry for STANNOUS 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 STANNOUS 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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