2-HEPTYLCYCLOPENTANONE

Description: 2-HEPTYLCYCLOPENTANONE — FRAGRANCE, PERFUMING.

All Functions: FRAGRANCE, PERFUMING

Quick Facts:

• Category: fragrance

Proven Benefits At A Glance:

• 2-Heptylcyclopentanone is a fragrance ingredient belonging to the cyclopentanone chemical family
• Its safety profile has been evaluated for skin irritation, eye irritation, allergic reactions, and other potential concerns
• It is used in fragrance applications in consumer products

Safety tier is a starting heuristic from regulatory status and comedogenic rating, not a dermatological verdict — see our Terms for the full disclaimer. Research confidence reflects how many real cited studies back this ingredient, not the strength of their findings.

🧪 2-HEPTYLCYCLOPENTANONE

2-HEPTYLCYCLOPENTANONE

CAS Number: 137-03-1

Also Known As: —

Category: fragrance

EC Number: 205-273-1

Korean Name: 2-헵틸사이클로펜타논

2-Heptylcyclopentanone

2-HEPTYLCYCLOPENTANONE is a fragrance ingredient used in skincare formulations.

🌍 Regulatory Status

📊 Comedogenicity

📚 Research & Evidence

🔬 The Science

2-Heptylcyclopentanone is classified as a fragrance ingredient within the ketones cyclopentanones and cyclopentenones structural group (Food Chem Toxicol, 2012). All members of this group share a common chemical structure: a cyclopentanone or cyclopentenone ring (a five-membered carbon ring with a ketone functional group) attached to a straight or branched chain of carbon atoms. The ingredient has undergone toxicological and dermatological review examining #1: acute toxicity, #2: skin irritation potential, #3: eye irritation potential, #4: skin sensitization (the ability to trigger allergic reactions), #5: phototoxicity (toxic effects triggered by sunlight), #6: photoallergy (allergic reactions triggered by sunlight), and #7: genotoxicity (potential to damage genetic material) (Food Chem Toxicol, 2012).

However, the provided abstract does not contain the actual findings or safety conclusions from these evaluations—it only describes what was reviewed. For a complete safety assessment of this ingredient and the broader cyclopentanone chemical family in fragrance use, the source directs readers to a simultaneous publication by Belsito et al. (2012), which is not included here.

💧 Skin Type Compatibility

⚠️ Don’t Combine With

🧴 Products Containing 2-HEPTYLCYCLOPENTANONE

📄 Related Research

Matched by search — not necessarily verified support for every statement above.

• Scognamiglio J et al. (2012). Fragrance material review on 2-heptylcyclopentanone. Food Chem Toxicol.
• Api AM et al. (2024). Update to RIFM fragrance ingredient safety assessment, 2-heptylcyclopentanone, CAS Registry Number 137-03-1. Food Chem Toxicol.