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InventoryRef cosing-live-590062023-05-23

PERFLUOROHEXYLETHYL TRIETHOXYSILANE

Perfluorohexylethyl Triethoxysilane is the organic compound that conforms to the formula:

PERFLUOROHEXYLETHYL 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 Ų
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 recordPubChem annotations3D structure image
External database identifiers

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

Official European Commission record

CosIng substance ID
59006
Entry status
Active
Published in the Official Journal
Yes
Recorded by the Commission
2023-05-23
Open this entry in the official CosIng database

Fields as published by the European Commission. The link opens the entry itself, not a search for it.

Inventory details for PERFLUOROHEXYLETHYL TRIETHOXYSILANE

INCI name

PERFLUOROHEXYLETHYL TRIETHOXYSILANE

Description

Perfluorohexylethyl Triethoxysilane is the organic compound that conforms to the formula:

Record provenance

Inventory reference
cosing-live-59006
Imported identity
PERFLUOROHEXYLETHYL TRIETHOXYSILANE
Source update
2023-05-23
European Commission CosIng source notes
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Key data

CAS
51851-37-7
EC
257-473-3
Restriction
—
Function
BINDING
Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.
SKIN CONDITIONING - MISCELLANEOUS
Enhancing the appearance of dry and/or damaged skin by reducing flaking and restoring suppleness.

Official EU ingredient-name evidence

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

#20473 · PERFLUOROHEXYLETHYL TRIETHOXYSILANE

Records sharing a CAS or EC identity

PERFLUOROOCTYL TRIETHOXYSILANE

Ingredients with overlapping formulation functions

PEG/PPG-50/20 TOCOPHERYL ETHERANTICAKING, ANTIOXIDANT, BINDING, EMULSION STABILISING, PLASTICISER, SKIN CONDITIONING, SURFACTANT …
PEG/PPG-70/30 TOCOPHERYL ETHERANTICAKING, ANTIOXIDANT, BINDING, EMULSION STABILISING, PLASTICISER, SKIN CONDITIONING, SURFACTANT …
PENTAERYTHRITYL TRIACRYLATEBINDING, FILM FORMING
PERFLUOROCAPRYLYL TRIETHOXYSILYLETHYL METHICONEBINDING, SKIN CONDITIONING - EMOLLIENT
PERFLUOROMETHYLCYCLOHEXANEABSORBENT, ANTICAKING, BINDING, EMULSION STABILISING, SKIN CONDITIONING
PERFLUOROMETHYLDECALINABSORBENT, ANTICAKING, BINDING, EMULSION STABILISING, SKIN CONDITIONING
PERFLUORONONYL DIMETHICONE/METHICONE/AMODIMETHICONE CROSSPOLYMERBINDING
PERFLUOROOCTYL TRIETHOXYSILANEBINDING

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 chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How PERFLUOROHEXYLETHYL TRIETHOXYSILANE appears in the CosIng inventory

The CosIng inventory lists PERFLUOROHEXYLETHYL 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.

PERFLUOROHEXYLETHYL TRIETHOXYSILANE 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

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

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 PERFLUOROHEXYLETHYL TRIETHOXYSILANE

This page reproduces the CosIng inventory entry for PERFLUOROHEXYLETHYL 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 PERFLUOROHEXYLETHYL 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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