Dihydrocarveol (R,R,R) (CAS 38049-26-2) — Green Top to middle Note Fragrance Ingredient

ByThe Good Scents
Green · Citrus

Dihydrocarveol (R,R,R)

CAS 38049-26-2

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

What Is Dihydrocarveol (R,R,R)?

Dihydrocarveol (R,R,R) is a synthetic fragrance ingredient used to add fresh, minty-green notes to perfumes and personal care products. It’s chemically related to natural compounds found in caraway and spearmint. This molecule helps create crisp, clean scent profiles in products like aftershaves, body sprays, and household cleaners where a refreshing herbal character is desired.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
✓ No major safety concerns
⚠ Always patch test new formulations
CAS
38049-26-2
Formula
Mixture
MW
Variable
Odor Family
Green · Citrus
Layer 1 · Enthusiast

What Does Dihydrocarveol (R,R,R) Smell Like?

Dihydrocarveol (R,R,R) delivers a crisp, cooling mintiness with subtle herbal undertones reminiscent of freshly crushed spearmint leaves. The scent evolves from an initial sharp green burst to a smoother, woody-mint dry down. Unlike its carvone relatives, it lacks the intense pungency, offering instead a refined, almost camphoraceous freshness that blends seamlessly with citrus and woody notes. In dilution, it reveals a delicate sweetness akin to peppermint tea leaves.

Scent Profile
Layer 2

2D Molecular Structure

Cyclohexanol, 2-methyl-5-(1-methylethenyl)-, (1R,2R,5R)-rel-

SMILES: C[C@@H]1CC[C@H](C[C@H]1O)C(C)=C

Chemistry, Properties & Perfumer Guide

The Chemistry

Dihydrocarveol (R,R,R) is a saturated monoterpenoid alcohol, the hydrogenated derivative of carveol. As a synthetic material, it’s produced through catalytic hydrogenation of natural terpenes like limonene or carvone. The (R,R,R) stereochemistry gives it distinct olfactory properties compared to other stereoisomers. Being fully saturated makes it more stable than its unsaturated counterparts, with reduced oxidation potential in formulations.

Physical & Chemical Properties

Perfumer Guide

Note Position
Top to middle
Volatility
Medium (2-4 hours)
Blending
Good
ApplicationTypical %RangeNotes
Fine Fragrance0.5-2%Up to 5%Fresh top note modifier
Functional Fragrance1-3%Up to 8%Clean, herbal character

Classic Accords

Tip: Use to add dimensionality to mint accords without overwhelming sweetness.

Alternatives & Comparisons

1
Carvone CAS 99-49-0

For stronger caraway/mint character with unsaturated backbone.

2
Menthone CAS 89-80-5

When sharper peppermint notes are desired.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not currently restricted by IFRA standards.

RIFM Assessment

No specific RIFM assessment found for this stereoisomer.

Sustainability

As a synthetic material, dihydrocarveol (R,R,R) offers consistent quality without natural sourcing pressures. Production typically uses petrochemical feedstocks, though some manufacturers may derive it from renewable terpene sources. The hydrogenation process requires energy input but creates a stable material with longer shelf life than natural terpenes.

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References

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

    Report a data error

    Ingredient Data Sheet

    CAS 38049-26-2

    Physical Properties

    Molecular Weight154.25 g/mol🔬 PubChem
    LogP (Octanol-Water)3🔬 PubChem
    Boiling Point224 °C🔬 EPA CompTox
    Vapor Pressure0.0295 mmHg @ 25°C📊 OPERA
    Flash Point91.7 °C🔬 EPA CompTox
    Involatility Index0.0026💻 Calculated
    log Kp (skin permeability)-1.511💻 Calculated
    SMILESCC1CCC(CC1O)C(=C)C🔬 PubChem

    Volatility & Performance

    Fragrance NoteHeart💻 Calculated
    Volatility ClassVery slow💻 Calculated
    Persistence Score2.7 / 5💻 Calculated

    Odor & Flavor

    Functional Groupsalcoholalkene💻 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: DTXSID70885700

    Physical Properties

    Molecular Weight 154.253 g/mol🔬 EPA CompTox
    Density 0.916 g/cm^3📊 OPERA
    Boiling Point 222.885 °C📊 OPERA
    Melting Point 31.422 °C📊 OPERA
    Flash Point 89.096 °C📊 OPERA
    Refractive Index 1.472 Dimensionless📊 OPERA
    Molar Volume 168.964 cm^3/mol📊 OPERA

    Partition & Solubility

    LogP (Octanol-Water) 3.049 Log10 unitless📊 OPERA
    LogD (pH 5.5) 3.049 Log10 unitless📊 OPERA
    LogD (pH 7.4) 3.049 Log10 unitless📊 OPERA
    LogKoa (Octanol-Air) 6.86 Log10 unitless📊 OPERA
    Water Solubility 0.009 mol/L📊 OPERA
    Henry's Law Constant 0 atm-m3/mole📊 OPERA

    Transport Properties

    Vapor Pressure 0.044 mmHg📊 OPERA
    Viscosity 8.081 cP📊 OPERA
    Surface Tension 30.346 dyn/cm📊 OPERA
    Thermal Conductivity 133.551 mW/(m*K)📊 OPERA

    Molecular Descriptors

    Topological Polar Surface Area 20.23 Ų💻 Computed
    H-Bond Donors 1 count💻 Computed
    H-Bond Acceptors 1 count💻 Computed
    Rotatable Bonds 1 count💻 Computed
    Aromatic Rings 0 count💻 Computed
    Molar Refractivity 47.346 cm^3/mol📊 OPERA
    Polarizability 18.769 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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