3-Hexene, 1-[(2-methyl-2-propenyl)oxy]- (3Z)- (CAS 292605-05-1) — Green Top to Middle Note Fragrance Ingredient

ByThe Good Scents
Green · Woody

3-Hexene, 1-[(2-methyl-2-propenyl)oxy]- (3Z)-

CAS 292605-05-1

Origin
synthetic
Note
Top to Middle
IFRA
Use with awareness
Data as of: Apr 2026

What Is 3-Hexene, 1-[(2-methyl-2-propenyl)oxy]- (3Z)-?

3-Hexene, 1-[(2-methyl-2-propenyl)oxy]- (3Z)- is a synthetic fragrance ingredient primarily used in modern perfumery. It is found in various personal care and household products. This compound is valued for its unique olfactory properties, contributing to innovative scent profiles in contemporary fragrances.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
✓ Safe in regulated concentrations
⚠ Limited safety data available
CAS
292605-05-1
Formula
Mixture
MW
Variable
Odor Family
Green · Woody
Layer 1 · Enthusiast

What Does 3-Hexene, 1-[(2-methyl-2-propenyl)oxy]- (3Z)- Smell Like?

This synthetic molecule offers a fresh, green, and slightly fruity aroma with a subtle woody undertone. It evolves from a bright top note to a more rounded heart, providing a modern twist to traditional green accords. The dry-down retains a clean, slightly metallic edge, making it versatile for contemporary fragrance compositions.

Scent Profile
Layer 2

2D Molecular Structure

(3Z)-1-[(2-Methylprop-2-en-1-yl)oxy]hex-3-ene

SMILES: CC\C=C/CCOCC(C)=C

Chemistry, Properties & Perfumer Guide

The Chemistry

3-Hexene, 1-[(2-methyl-2-propenyl)oxy]- (3Z)- is a synthetic organic compound belonging to the class of unsaturated ethers. It is synthesized through controlled chemical reactions involving unsaturated hydrocarbons and ether-forming reagents. The (3Z)- configuration indicates a specific geometric isomerism, which can influence its olfactory characteristics.

Physical & Chemical Properties

Perfumer Guide

Note Position
Top to Middle
Volatility
Medium (2-4 hours)
Blending
Good
ApplicationTypical %RangeNotes
Fine Fragrance1-3%Up to 5%Used as a green modifier
Household Products0.5-2%Up to 3%Adds freshness

Classic Accords

Tip: Use in small quantities to enhance green and fresh notes without overpowering the composition.

Alternatives & Comparisons

1
Hexenyl acetate CAS 3681-71-8

Offers a similar green note with a more pronounced fruity character.

2
Verdox CAS 88-41-5

Provides a cleaner, more metallic green note suitable for modern fragrances.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not currently restricted by IFRA.

RIFM Assessment

No specific RIFM assessment data available.

Sustainability

As a synthetic ingredient, this compound is produced in controlled laboratory settings, reducing the environmental impact associated with natural extraction. Its synthesis can be optimized for minimal waste and energy consumption.

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References

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

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    Ingredient Data Sheet

    CAS 292605-05-1

    Physical Properties

    Molecular Weight154.25 g/mol🔬 PubChem
    LogP (Octanol-Water)3.1🔬 PubChem
    Boiling Point186 °C🔬 EPA CompTox
    Vapor Pressure0.7748 mmHg @ 25°C📊 OPERA
    Flash Point56.9 °C🔬 EPA CompTox
    Involatility Index0.0672💻 Calculated
    log Kp (skin permeability)-1.44💻 Calculated
    SMILESCCC=CCCOCC(=C)C🔬 PubChem

    Volatility & Performance

    Fragrance NoteTop💻 Calculated
    Volatility ClassSlow💻 Calculated
    Persistence Score0.5 / 5💻 Calculated

    Odor & Flavor

    Primary Descriptorsgreenwoody• leffingwell
    Functional Groupsetheralkene💻 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: DTXSID7051971

    Physical Properties

    Molecular Weight 154.253 g/mol🔬 EPA CompTox
    Density 0.82 g/cm^3🔬 EPA CTX
    Boiling Point 190.36 °C📊 OPERA
    Melting Point -60.894 °C📊 OPERA
    Flash Point 56.683 °C📊 OPERA
    Refractive Index 1.441 Dimensionless📊 OPERA
    Molar Volume 188.475 cm^3/mol📊 OPERA

    Partition & Solubility

    LogP (Octanol-Water) 4.09 Log10 unitless🔬 EPA CTX
    LogD (pH 5.5) 3.2 Log10 unitless📊 OPERA
    LogD (pH 7.4) 3.2 Log10 unitless📊 OPERA
    LogKoa (Octanol-Air) 4.61 Log10 unitless📊 OPERA
    Water Solubility 0.01 mol/L📊 OPERA
    Henry's Law Constant 0.001 atm-m3/mole📊 OPERA

    Transport Properties

    Vapor Pressure 0.775 mmHg🔬 EPA CTX
    Viscosity 1.105 cP📊 OPERA
    Surface Tension 25.023 dyn/cm📊 OPERA
    Thermal Conductivity 133.186 mW/(m*K)📊 OPERA

    Molecular Descriptors

    Topological Polar Surface Area 9.23 Ų💻 Computed
    H-Bond Donors 0 count💻 Computed
    H-Bond Acceptors 1 count💻 Computed
    Rotatable Bonds 6 count💻 Computed
    Aromatic Rings 0 count💻 Computed
    Molar Refractivity 49.749 cm^3/mol📊 OPERA
    Polarizability 19.722 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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