Methyl Perfluorobutyl Ether

INCI: METHYL PERFLUOROBUTYL ETHER

CAS Number
163702-07-6
Function
Solvent, Viscosity Controlling Agent
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Explicitly listed by FDA as a common PFAS ingredient found in cosmetics. Allowed but under active assessment per MoCRA.

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

PFAS compound with environmental persistence; the FDA identified it among the most common PFAS ingredients in cosmetic products submitted for registration.. Molecular formula Cโ‚…Hโ‚ƒFโ‚‰O; provides volatility without flammability; functions as a carrier solvent for active ingredients in cosmetic formulations

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Concern Level: Moderate

Frequently Asked Questions

Is Methyl Perfluorobutyl Ether safe in cosmetics?

PFAS compound with environmental persistence; the FDA identified it among the most common PFAS ingredients in cosmetic products submitted for registration.. Molecular formula Cโ‚…Hโ‚ƒFโ‚‰O; provides volatility without flammability; functions as a carrier solvent for active ingredients in cosmetic formulations The EU classifies Methyl Perfluorobutyl Ether as "permitted". Safety rating: MODERATE.

Is Methyl Perfluorobutyl Ether allowed in the EU?

Methyl Perfluorobutyl Ether EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Methyl Perfluorobutyl Ether do in cosmetics?

Methyl Perfluorobutyl Ether functions as: Solvent, Viscosity Controlling Agent. It is classified as a cosmetic ingredient in our database. CAS number: 163702-07-6.

What is the Margin of Safety for Methyl Perfluorobutyl Ether?

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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