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BUTETH-3 CARBOXYLIC ACID.

Valuable CAS 75427-76-8 / 107600-34-0 / SURFACTANT - CLEANSING

A mild anionic surfactant that delivers effective cleansing with reduced irritation potential compared to traditional sulfates. Its unique ether carboxylic acid structure provides exceptional pH stability and makes it suitable for both gentle daily cleansers and specialized treatment formulations.

surfactant cleansing emulsifying hydrotrope

Science

Functions as a surface tension reducer that facilitates the emulsification and removal of oils and impurities from skin. The ether linkage in its molecular structure provides enhanced chemical stability across extreme pH ranges while acting as a hydrotrope to stabilize other formula components.


Research

Medium confidence
Effective range 1–20%
Optimal

10%

Key findings

  1. 01 Patent studies demonstrate effective surfactant action at 1.0-15.0% with reduced irritation versus alkaline alternatives
  2. 02 Formulation stability maintained at 5.0-20.0% concentrations in polycarboxylic acid systems

Transparency

Not commonly dusted

Primary function as surfactant/cleansing agent requires meaningful concentrations to be effective, making dusting unlikely


The Formula

Solubility
Water
Optimal pH 1.5 – 12
0 7 14

Stability

Demonstrates exceptional stability in high-electrolyte environments and particularly stable in acidic conditions (pH 1.5-3.0). Resistant to oxidative degradation from agents like sodium hypochlorite.

Synergies

  • Other anionic surfactants
  • Amphoteric cleansing agents
  • pH buffering systems

Conflicts

  • Cationic surfactants
  • High concentration oxidizing agents

Safety

CIR Status
Safe as used
Max tested
15%
Pregnancy
Safe
Sensitization risk Low

CIR Expert Panel review concluded safety when formulated to be non-irritating as part of alkylether carboxylic acids group assessment


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

A well-tolerated surfactant option that provides effective cleansing with enhanced pH stability and reduced irritation potential across all skin types.


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References