Perfluorooctylethyl Trimethoxysilane

INCI: PERFLUOROOCTYLETHYL TRIMETHOXYSILANE

CAS Number
85857-16-5
Function
Surface modifier, hydrophobic coating agent
Safety Rating
POOR

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No specific FDA ban; under MoCRA review

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

PFOA precursor (C8) with methanol release on hydrolysis, environmental persistence, and France ban effective January 2026.

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Concern Level: High

Frequently Asked Questions

Is Perfluorooctylethyl Trimethoxysilane safe in cosmetics?

PFOA precursor (C8) with methanol release on hydrolysis, environmental persistence, and France ban effective January 2026. The EU classifies Perfluorooctylethyl Trimethoxysilane as "permitted". Safety rating: POOR.

Is Perfluorooctylethyl Trimethoxysilane allowed in the EU?

Perfluorooctylethyl Trimethoxysilane EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Perfluorooctylethyl Trimethoxysilane do in cosmetics?

Perfluorooctylethyl Trimethoxysilane functions as: Surface modifier, hydrophobic coating agent. It is classified as a cosmetic ingredient in our database. CAS number: 85857-16-5.

What is the Margin of Safety for Perfluorooctylethyl Trimethoxysilane?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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