Rheology Modifier

Methyl Perfluoroisobutyl Ether

INCI: METHYL PERFLUOROISOBUTYL ETHER
CAS 163702-07-6 (commonly reported under the same CAS as the mixture; the individual isobutyl isomer may be referenced separately in some databases)
Propane, 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoro-
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

Solvent, Viscosity Controlling Agent (same functional class as the n-butyl isomer)
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Propane, 2-(difluoromethoxymethyl)-1,1,1,2,3,3,3-heptafluoro-

Reference

Identifiers

CAS Number
163702-07-6 (commonly reported under the same CAS as the mixture; the individual isobutyl isomer may be referenced separately in some databases)
INCI
METHYL PERFLUOROISOBUTYL ETHER
Category
Rheology Modifier
Updated
Apr 2, 2026