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Moumoujus

3-HEXYLOXYCARBONYL-4,4'-DIAMINODIPHENYLAMINE HCL.

Insufficient Data CAS 2328127-51-9 (free base) / HAIR DYEING

A synthetic diaminodiphenylamine derivative formulated as a hydrochloride salt for enhanced water solubility. While primarily developed and regulated as a hair dye component in the EU Cosmetic Regulation, this ingredient has recently appeared in advanced skincare formulations, though comprehensive dermatological research remains limited.

Summary

Hair dyeing

Science

Mechanism of Action

Functions as a precursor molecule that likely undergoes oxidative coupling reactions to form larger chromophore complexes. In hair applications, it acts as a coupler or developer with hydrogen peroxide, though its specific mechanism of action in topical skincare formulations has not been definitively established.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

No evidence of dusting practices identified in current market research

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Hydrochloride salt formulation provides improved aqueous stability and solubility. May precipitate in alkaline environments where the free base becomes dominant.

Conflicts

  • Strong oxidizing agents
  • Strong bases

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

Listed in EU Cosmetic Regulation Annex III for hair dyeing purposes. No comprehensive SCCS safety assessment available for topical skincare applications.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Insufficient Data

An emerging ingredient with unclear skincare benefits and limited safety data for facial applications.

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