Furan, 2-(1,1-Dimethylethyl)-2,5-dihydro-5-methyl-2-propyl-, (2S,5R)- (CAS 1092785-68-6) — Citrus Unknown Note Fragrance Ingredient

Citrus · Floral

Furan, 2-(1,1-Dimethylethyl)-2,5-dihydro-5-methyl-2-propyl-, (2S,5R)-

CAS 1092785-68-6

Origin
synthetic
Note
Unknown
IFRA
Use with awareness
Data as of: Apr 2026

What Is Furan, 2-(1,1-Dimethylethyl)-2,5-dihydro-5-methyl-2-propyl-, (2S,5R)-?

This synthetic compound is a specialized fragrance ingredient used by perfumers to create unique olfactory effects. While not encountered in everyday products, it plays a role in crafting distinctive scent profiles. Its importance lies in enabling perfumers to achieve specific aromatic characteristics that might be difficult to obtain from natural sources alone, contributing to the diversity of modern fragrances.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
Limited safety data available
Professional handling recommended
CAS
1092785-68-6
Formula
Mixture
MW
Variable
Odor Family
Citrus · Floral
Layer 1 · Enthusiast

What Does Furan, 2-(1,1-Dimethylethyl)-2,5-dihydro-5-methyl-2-propyl-, (2S,5R)- Smell Like?

No specific odor description available for this specialized synthetic compound. As a furan derivative, it might contribute woody, caramelic, or roasted nuances if it has any detectable odor at all. The exact olfactory profile would require empirical testing given the lack of documented sensory data for this particular molecule.

Layer 2

2D Molecular Structure

Furan, 2-(1,1-dimethylethyl)-2,5-dihydro-5-methyl-2-propyl-, (2S,5R)-

SMILES: CCC[C@@]1(O[C@H](C)C=C1)C(C)(C)C

Chemistry, Properties & Perfumer Guide

The Chemistry

This compound is a chiral furan derivative with a complex substituted structure. Furan compounds are heterocyclic organic molecules containing an oxygen atom in a five-membered aromatic ring. The specific stereochemistry at positions 2 and 5 (2S,5R) may influence its olfactory properties if it has any. Synthetic routes would likely involve multi-step organic synthesis with careful control of stereochemistry.

Physical & Chemical Properties

Perfumer Guide

Note Position
Unknown
Volatility
Unknown
Blending
Unknown
ApplicationTypical %RangeNotes

Classic Accords

Tip: Conduct thorough sensory evaluation before incorporating this specialized material into formulations.

Alternatives & Comparisons

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No IFRA restrictions currently listed for this specific compound.

RIFM Assessment

No RIFM assessment data available for this compound.

Sustainability

As a synthetic compound, its environmental impact depends on production methods and scale. Without specific data, general principles of green chemistry should be applied to its synthesis and use. The specialized nature of this material suggests it would be used in very small quantities if at all in fragrance applications.

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References

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

    Report a data error

    Ingredient Data Sheet

    CAS 1092785-68-6

    Physical Properties

    Molecular Weight182.3 g/mol🔬 PubChem
    LogP (Octanol-Water)3.5🔬 PubChem
    Boiling Point221 °C🔬 EPA CompTox
    Vapor Pressure0.912 mmHg @ 25°C📊 OPERA
    Flash Point80.3 °C🔬 EPA CompTox
    Involatility Index0.0728💻 Calculated
    log Kp (skin permeability)-1.327💻 Calculated
    SMILESCCCC1(C=CC(O1)C)C(C)(C)C🔬 PubChem

    Volatility & Performance

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

    Odor & Flavor

    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: DTXSID70889268

    Physical Properties

    Molecular Weight 182.307 g/mol🔬 EPA CompTox
    Density 0.851 g/cm^3📊 OPERA
    Boiling Point 208.446 °C📊 OPERA
    Melting Point -11.608 °C📊 OPERA
    Flash Point 72.612 °C📊 OPERA
    Refractive Index 1.445 Dimensionless📊 OPERA
    Molar Volume 211.8 cm^3/mol📊 OPERA

    Partition & Solubility

    LogP (Octanol-Water) 3.815 Log10 unitless📊 OPERA
    LogD (pH 5.5) 3.815 Log10 unitless📊 OPERA
    LogD (pH 7.4) 3.815 Log10 unitless📊 OPERA
    LogKoa (Octanol-Air) 5.07 Log10 unitless📊 OPERA
    Water Solubility 0.002 mol/L📊 OPERA
    Henry's Law Constant 0.001 atm-m3/mole📊 OPERA

    Transport Properties

    Vapor Pressure 0.586 mmHg📊 OPERA
    Viscosity 3.009 cP📊 OPERA
    Surface Tension 25.784 dyn/cm📊 OPERA
    Thermal Conductivity 105.198 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 2 count💻 Computed
    Aromatic Rings 0 count💻 Computed
    Molar Refractivity 56.424 cm^3/mol📊 OPERA
    Polarizability 22.368 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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