Skip to content

Solvent

METHYL PERFLUORO BUTYL/ISOBUTYL ETHER

CAS 163702-07-6,163702-08-7 Updated
35

Safety score · 0–100

Caution

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A short-chain perfluorinated ether solvent (CAS 163702-07-6/08-7). Once marketed as a "safer PFAS", it now falls under the broad EU PFAS-in-cosmetics restriction package — environmental persistence keeps it red despite low acute topical risk.

Function

SOLVENT

Skin benefits

  • Quick-evaporating carrier
  • Smooth glide on skin

Known concerns

  • PFAS-class environmental persistence
  • EU PFAS restriction package
  • Bioaccumulation potential
  • Atmospheric persistence

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related solvents

35
DIETHYLKETONE
Solvent
 35
FORMYL MORPHOLINE
Solvent
 35
HEXYLOXYETHANOL
Solvent
 35
PEG-7 BETA-NAPHTHOL
Solvent
 35
PERFLUORO T-BUTYLCYCLOHEXANE
Solvent
 32
BUTOXYDIGLYCOL
Solvent
 38
C10-11 AROMATIC HYDROCARBONS
Solvent
 32
C12-15 ALKANE/CYCLOALKANE/AROMATIC HYDROCARBONS
Solvent

Check your shelf

Find METHYL PERFLUORO BUTYL/ISOBUTYL ETHER in your products.

Scan any cosmetic product with LuxSense to see if it contains METHYL PERFLUORO BUTYL/ISOBUTYL ETHER and get a full ingredient breakdown with safety scores.

This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.