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Moumoujus

3-METHYLPENT-3-EN-2-ONE.

Questionable CAS 565-62-8 / PERFUMING

An alpha,beta-unsaturated ketone compound utilized exclusively as a fragrance component in cosmetic formulations. This organic molecule serves no active skincare function beyond contributing to product scent profiles, functioning purely as a perfuming agent.

Summary

perfuming

Science

Mechanism of Action

Acts solely as a fragrance ingredient with no documented biological activity on skin tissue. Does not provide anti-aging, brightening, or other therapeutic benefits to the skin barrier or cellular processes.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Not typically subject to dusting practices as it serves only fragrance purposes with no active skincare claims

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Exhibits moderate water solubility at 29.1 g/L and dissolves readily in alcohols and organic solvents. Highly flammable with flash point at 34°C. May demonstrate reactivity under extreme acid or base conditions due to its unsaturated ketone structure.

Conflicts

  • Strong oxidizing agents
  • Strong bases
  • Strong reducing agents

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Moderate

Classified under GHS Category 2 for skin and eye irritation potential. Designated as Acute Tox. 4 for harmful skin contact and respiratory toxicity. Lacks comprehensive CIR safety evaluation for cosmetic applications.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Questionable

A fragrance-only ingredient with notable irritation potential and insufficient safety data for skincare applications.

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