2-(p-Menth-1-ene-10-yl)cyclopentanone (CAS 95962-14-4) — Woody Top to Middle Note Fragrance Ingredient

ByThe Good Scents
Woody · Green

2-(p-Menth-1-ene-10-yl)cyclopentanone

CAS 95962-14-4

Origin
synthetic
Note
Top to Middle
IFRA
Generally safe
Data as of: Apr 2026

What Is 2-(p-Menth-1-ene-10-yl)cyclopentanone?

2-(p-Menth-1-ene-10-yl)cyclopentanone is a synthetic fragrance ingredient primarily used in perfumery. It is not commonly encountered in everyday products but may appear in niche or artisanal fragrances. This molecule contributes unique olfactory characteristics that are valued in high-end fragrance compositions.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
✓ Safe in regulated products
⚠ Limited safety data available
CAS
95962-14-4
Formula
Mixture
MW
Variable
Odor Family
Woody · Green
Layer 1 · Enthusiast

What Does 2-(p-Menth-1-ene-10-yl)cyclopentanone Smell Like?

This synthetic molecule offers a complex olfactory profile with woody, minty, and slightly camphoraceous nuances. It evolves from a fresh, crisp top note to a heart that balances herbal and woody tones, settling into a dry-down with subtle earthy undertones. The scent is reminiscent of a cool forest breeze with hints of eucalyptus and pine.

Scent Profile
Layer 2

2D Molecular Structure

2-(2-(4-Methyl-3-cyclohexen-1-yl)propyl)cyclopentanone

SMILES: CC(CC1CCCC1=O)C1CCC(C)=CC1

Chemistry, Properties & Perfumer Guide

The Chemistry

2-(p-Menth-1-ene-10-yl)cyclopentanone is a synthetic ketone derived from menthene. It belongs to the class of bicyclic ketones, characterized by a cyclopentanone ring fused with a p-menth-1-ene moiety. The synthesis typically involves the cyclization of menthene derivatives under controlled conditions. Its molecular structure contributes to its unique volatility and olfactory properties.

Physical & Chemical Properties

Perfumer Guide

Note Position
Top to Middle
Volatility
Medium (1-3 hours)
Blending
Good
ApplicationTypical %RangeNotes
Fine Fragrance1-5%Up to 10%Used as a modifier in woody compositions

Classic Accords

Tip: Use in small amounts to add depth to woody or fresh accords.

Alternatives & Comparisons

1
Menthone CAS 89-80-5

A more common minty ketone with similar fresh characteristics but less woody depth.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

General reference only. Consult current IFRA Standards Library before formulating.

IFRA Status

No specific IFRA restrictions currently apply.

RIFM Assessment

Limited safety assessment data available from RIFM.

Sustainability

As a synthetic ingredient, 2-(p-Menth-1-ene-10-yl)cyclopentanone is produced through controlled chemical processes, reducing the environmental impact associated with natural extraction. Its synthetic origin ensures consistent quality and reduces reliance on natural resources.

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References

    Data: PubChem (NIH), PubMed, RIFM, IFRA. Last reviewed: Apr 2026.

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    Ingredient Data Sheet

    CAS 95962-14-4

    Physical Properties

    Molecular Weight220.35 g/mol🔬 PubChem
    LogP (Octanol-Water)3.4🔬 PubChem
    Boiling Point288 °C🔬 EPA CompTox
    Vapor Pressure12.0985 mmHg @ 25°C📊 OPERA
    Flash Point162.5 °C🔬 EPA CompTox
    Involatility Index0.8784💻 Calculated
    log Kp (skin permeability)-1.63💻 Calculated
    SMILESCC1=CCC(CC1)C(C)CC2CCCC2=O🔬 PubChem

    Volatility & Performance

    Fragrance NoteHeart💻 Calculated
    Volatility ClassModerate💻 Calculated
    Persistence Score0.5 / 5💻 Calculated

    Odor & Flavor

    Functional Groupsketonealkene💻 RDKit
    Data Sources & Attribution
    Physical data: PubChem (NIH/NLM), U.S. EPA CompTox Dashboard, EPA OPERA models, RDKit. Odor & flavor: Arctander (Perfume & Flavor Chemicals), Fenaroli's Handbook of Flavor Ingredients, Leffingwell. Thresholds: van Gemert (Compilations of Odour Threshold Values). Regulatory: IFRA Standards 51st, FEMA GRAS. Trade names: Surburg (Common Fragrance & Flavor Materials). All data compiled and cross-referenced for perfumertools.com.

    Physicochemical Properties

    DTXSID: DTXSID3052646

    Physical Properties

    Molecular Weight 220.356 g/mol🔬 EPA CompTox
    Density 0.96 g/cm^3🔬 EPA CTX
    Boiling Point 288 °C🔬 EPA CTX
    Melting Point 61.749 °C📊 OPERA
    Flash Point 162.5 °C🔬 EPA CTX
    Refractive Index 1.492 Dimensionless📊 OPERA
    Molar Volume 231.078 cm^3/mol📊 OPERA

    Partition & Solubility

    LogP (Octanol-Water) 4.321 Log10 unitless📊 OPERA
    LogD (pH 5.5) 4.321 Log10 unitless📊 OPERA
    LogD (pH 7.4) 4.321 Log10 unitless📊 OPERA
    LogKoa (Octanol-Air) 7.45 Log10 unitless📊 OPERA
    Water Solubility 0 mol/L🔬 EPA CTX
    Henry's Law Constant 0 atm-m3/mole📊 OPERA

    Transport Properties

    Vapor Pressure 12.098 mmHg🔬 EPA CTX
    Viscosity 12.897 cP📊 OPERA
    Surface Tension 33.13 dyn/cm📊 OPERA
    Thermal Conductivity 128.853 mW/(m*K)📊 OPERA

    Molecular Descriptors

    Topological Polar Surface Area 17.07 Ų💻 Computed
    H-Bond Donors 0 count💻 Computed
    H-Bond Acceptors 1 count💻 Computed
    Rotatable Bonds 3 count💻 Computed
    Aromatic Rings 0 count💻 Computed
    Molar Refractivity 67.044 cm^3/mol📊 OPERA
    Polarizability 26.578 Å^3📊 OPERA

    Data Sources:

    🔬 EPA Experimental data from U.S. EPA CompTox Chemicals Dashboard & CTX APIs. 📊 OPERA Predicted using EPA's OPERA QSAR models. 💻 Computed Calculated from SMILES using RDKit.

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