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METHYL 3-OXO-PENTENYL-CYCLOPENTANEACETATE.

Optional CAS 39924-52-2 / PERFUMING

Methyl 3-oxo-pentenyl-cyclopentaneacetate is an aromatic compound predominantly incorporated into cosmetic formulations as a fragrance agent. While it naturally functions as a phytohormone in plants, its direct utility for human skin benefits remains unestablished.

Fragrance

Science

Its predominant role in topical products is to impart sensory characteristics through fragrance. Despite its well-documented activity as a plant phytohormone, influencing botanical defense and development, no specific mechanism of action demonstrating benefits like anti-aging or hydration for human skin has been identified.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

This ingredient exhibits robust solubility in oils and various organic solvents, including ethanol, DMSO, and dimethyl formamide. Its solubility in water is limited, measured at approximately 0.34 to 1.01 grams per liter at 25°C. Aqueous solutions are not recommended for extended storage, typically beyond one day, due to potential stability concerns.


Safety

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded this ingredient is safe under current usage conditions. The Research Institute for Fragrance Materials (RIFM) similarly supports its safe incorporation into everyday products. While the PubChem GHS classification indicates no hazard for 81% of reports, a smaller fraction (19%) identifies potential harm if swallowed or serious eye irritation. Notably, its synonym, methyl jasmonate, holds an FDA exemption from food tolerance requirements due to its low toxicity profile.


Your Skin

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

Our Assessment

Optional

As a fragrance component, Methyl 3-oxo-pentenyl-cyclopentaneacetate is considered safe for topical use but currently lacks documented evidence of direct efficacy for specific skin benefits.


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