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CAS 807-28-3 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 8941818/10/2012

TETRAPHENYL DIMETHYL DISILOXANE

Disiloxane, 1,3-dimethyl-1,1,3,3-tetraphenyl-

TETRAPHENYL DIMETHYL DISILOXANE 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 807-28-3

CAS 807-28-3PubChem CID 13121

Tetraphenyl dimethyl disiloxane

IUPAC name: methyl-[methyl(diphenyl)silyl]oxy-diphenylsilane

Molecular formula: C26H26OSi2
Molecular weight: 410.7 g/mol
Exact mass: 410.15221852 Da
Topological polar surface area: 9.2 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

1,1,3,3-Tetraphenyl-1,3-dimethyldisiloxaneDisiloxane, 1,3-dimethyl-1,1,3,3-tetraphenyl-1,3-DIMETHYL-1,1,3,3-TETRAPHENYLDISILOXANEEINECS 212-361-31,1,3,3-TETRAPHENYLDIMETHYLDISILOXANE54A20TN089T 2078RefChem:897393

11 more reported names

1,1,3,3Tetraphenyl1,3dimethyldisiloxane1,3Dimethyl1,1,3,3tetraphenyldisiloxaneTETRAPHENYL DIMETHYL DISILOXANE [INCI]212-361-3Disiloxane,1,3-dimethyl-1,1,3,3-tetraphenyl-1,3-dimethyl-1,1,3,3-tetraphenyl-disiloxaneC26H26OSi2UNII-54A20TN089methyldiphenylsilyl ethermethyl-[methyl(diphenyl)silyl]oxy-diphenyl-silane1,3-Dimethyl-1,1,3,3-tetraphenyldisiloxane #

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External database identifiers

EPA DTXSID:DTXSID7061144

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 TETRAPHENYL DIMETHYL DISILOXANE

INCI name

TETRAPHENYL DIMETHYL DISILOXANE

Description

Disiloxane, 1,3-dimethyl-1,1,3,3-tetraphenyl-

Record provenance

Inventory reference: 89418
Imported identity: TETRAPHENYL DIMETHYL DISILOXANE
Source update: 18/10/2012

European Commission CosIng source notes

Annex records for TETRAPHENYL DIMETHYL DISILOXANE

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Key data

CAS

807-28-3

—

Restriction

—

Function

SKIN CONDITIONING: Maintaining the skin in good condition.

Official EU ingredient-name evidence

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

#28675 · TETRAPHENYL DIMETHYL DISILOXANE

Ingredients with overlapping formulation functions

TETRAPEPTIDE-7SKIN CONDITIONING

TETRAPEPTIDE-73SKIN CONDITIONING

TETRAPEPTIDE-8SKIN CONDITIONING

TETRAPEPTIDE-9SKIN CONDITIONING

TETRASELMIS CHUI EXTRACTSKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

TETRASELMIS SUECICA EXTRACTSKIN CONDITIONING

TETRASODIUM TETRACARBOXYMETHYL NARINGENINCHALCONESKIN CONDITIONING

TEUCRIUM CANADENSE FLOWER/LEAF/STEM EXTRACTSKIN CONDITIONING

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 TETRAPHENYL DIMETHYL DISILOXANE appears in the CosIng inventory

The CosIng inventory lists TETRAPHENYL DIMETHYL DISILOXANE 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.

TETRAPHENYL DIMETHYL DISILOXANE is also tagged with 1 cosmetic function 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

TETRAPHENYL DIMETHYL DISILOXANE 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, TETRAPHENYL DIMETHYL DISILOXANE carries the following function designation(s):

SKIN CONDITIONING

CAS 807-28-3 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 TETRAPHENYL DIMETHYL DISILOXANE

This page reproduces the CosIng inventory entry for TETRAPHENYL DIMETHYL DISILOXANE 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 TETRAPHENYL DIMETHYL DISILOXANE 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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