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CAS 51851-37-7 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 5900615/10/2010

PERFLUOROOCTYL TRIETHOXYSILANE

Triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane

PERFLUOROOCTYL TRIETHOXYSILANE 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 51851-37-7

CAS 51851-37-7PubChem CID 103991

3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluorooctyltriethoxysilan

IUPAC name: triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane

Molecular formula: C14H19F13O3Si
Molecular weight: 510.36 g/mol
Exact mass: 510.0895871 Da
Topological polar surface area: 27.7 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 16
Covalent units: 1
Defined stereocentres: 0

Also known as

1,1,2,2-TetrahydroperfluorooctyltriethoxysilaneRefChem:8602792-perfluorohexylethyltriethoxysilane1h,1h,2h,2h-Perfluorooctyltriethoxysilaneperfluorooctyl triethoxysilaneSilane, triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)-Trifluorooctyl triethoxy silaneC14H19F13O3Si

16 more reported names

Triethoxy-1H,1H,2H,2H-tridecafluoro-n-octylsilaneTriethoxy((perfluorohexyl)ethyl)silane(1h,1h,2h,2h-perfluorooctyl)triethoxysilane2-(Tridecafluorohexyl)ethyltriethoxysilane814P46684UTriethoxy-1H,1H,2H,2H-perfluoro-n-octylsilaneTriethoxy(1H,1H,2H,2H-perfluoro-1-octyl)silane1H,1H,2H,2H-Tridecafluoro-n-octyltriethoxysilaneTridecafluoro-1,1,2,2-tetrahydrooctyl-1-triethoxysilaneEINECS 257-473-3UNII-814P46684U(tridecafluoro-1,1,2,2-tetrahydrooctyl)triethoxysilaneDS-4277CS-01519451H,1H,2H,2H-Perfluorooctyltriethoxysilane, 98%1H,1H,2H,2H-Perfluorooctyltriethoxysilane, high purity

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

EPA DTXSID:DTXSID1074915
PubMed:22540027
PubMed:22303880
PubMed:22117597
PubMed:22044032
PubMed:20594580
PubMed:20348230
PubMed:19788228
PubMed:19432495
PubMed:18603258
PubMed:18312005
PubMed:16453124

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 PERFLUOROOCTYL TRIETHOXYSILANE

INCI name

PERFLUOROOCTYL TRIETHOXYSILANE

Description

Triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane

Record provenance

Inventory reference: 59006
Imported identity: PERFLUOROOCTYL TRIETHOXYSILANE
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for PERFLUOROOCTYL TRIETHOXYSILANE

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Key data

CAS

51851-37-7

257-473-3

Restriction

—

Function

BINDING: Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.

Records sharing a CAS or EC identity

PERFLUOROHEXYLETHYL TRIETHOXYSILANE

Ingredients with overlapping formulation functions

PERFLUOROHEXYLETHYL TRIETHOXYSILANEBINDING; SKIN CONDITIONING - MISCELLANEOUS

PERFLUOROMETHYLCYCLOHEXANEABSORBENT, ANTICAKING, BINDING, EMULSION STABILISING, SKIN CONDITIONING

PERFLUOROMETHYLDECALINABSORBENT, ANTICAKING, BINDING, EMULSION STABILISING, SKIN CONDITIONING

PERFLUORONONYL DIMETHICONE/METHICONE/AMODIMETHICONE CROSSPOLYMERBINDING

PERFLUOROOCTYLETHYL TRISILOXANEBINDING

PHENOXYETHYL METHACRYLATEBINDING

PHYTOSTERYL ISOSTEARYL DIMER DILINOLEATEBINDING, HAIR CONDITIONING, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

PIPERYLENE/BUTENE/PENTENE/PENTADIENE COPOLYMERBINDING, FILM FORMING, 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 PERFLUOROOCTYL TRIETHOXYSILANE appears in the CosIng inventory

The CosIng inventory lists PERFLUOROOCTYL TRIETHOXYSILANE 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.

PERFLUOROOCTYL TRIETHOXYSILANE 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

PERFLUOROOCTYL TRIETHOXYSILANE 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, PERFLUOROOCTYL TRIETHOXYSILANE carries the following function designation(s):

BINDING

CAS 51851-37-7 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 PERFLUOROOCTYL TRIETHOXYSILANE

This page reproduces the CosIng inventory entry for PERFLUOROOCTYL TRIETHOXYSILANE 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 PERFLUOROOCTYL TRIETHOXYSILANE 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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