Bacdanol (CAS 28219-61-6) — Woody Base Note Fragrance Ingredient

Bacdanol

CAS 28219-61-6

Origin
Note
IFRA
Generally safe
Data as of: Mar 2026

What Is Bacdanol?

Bacdanol is a synthetic fragrance ingredient used in perfumes and personal care products to add woody, ambery notes. It is commonly found in fine fragrances, body lotions, and soaps. This ingredient matters because it provides a long-lasting, warm base note that enhances the complexity of modern perfumes, making them more appealing and memorable.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
Safe in regulated products
Check for individual sensitivity
CAS
28219-61-6
Formula
Mixture
MW
Variable
Odor Family
Layer 1 · Enthusiast

What Does Bacdanol Smell Like?

Bacdanol offers a rich, woody aroma with subtle amber undertones. It evolves from a slightly sharp initial note to a smooth, warm heart, and finally settles into a deep, lingering base. The dry-down is reminiscent of aged sandalwood, with a creamy, slightly sweet finish that adds depth to any fragrance composition.

Scent Profile

In Famous Fragrances

Fragrance associations may not reflect actual formulations.

Santal 33(Le Labo, 2011)

Bacdanol is used here to enhance the woody, leathery notes, providing a modern twist on traditional sandalwood accords.

Terre d'Hermès(Hermès, 2006)

Adds a warm, ambery depth to the citrus and vetiver heart, creating a balanced, earthy fragrance.

Layer 2

2D Molecular Structure

2-Ethyl-4-(2',2',3-trimethylcyclopent-3'-enyl)but-2-enol

SMILES: CCC(CO)=CCC1CC=C(C)C1(C)C

Chemistry, Properties & Perfumer Guide

The Chemistry

Bacdanol is a synthetic molecule belonging to the class of woody-amber fragrance ingredients. It is typically synthesized through chemical processes that mimic natural woody compounds. The molecule’s structure allows for excellent stability and longevity in fragrance formulations, making it a popular choice for base notes.

Physical & Chemical Properties

Boiling PointN/A
DensityN/A

Perfumer Guide

Note Position
Base
Volatility
Low (hours to days)
Blending
Excellent
ApplicationTypical %RangeNotes
Fine Fragrance5-10%Up to 15%Provides warm, woody base notes
Personal Care1-3%Up to 5%Adds subtle warmth to lotions and soaps

Classic Accords

+ Sandalwood + Vanilla = Woody Gourmand + Patchouli + Bergamot = Modern Chypre

Tip: Use Bacdanol to add depth and warmth to woody or amber accords.

Alternatives & Comparisons

1
Sandalore CAS 65113-99-7

A synthetic sandalwood alternative with similar woody notes but slightly sweeter profile.

2
Ebanol CAS 68039-49-6

Another woody-amber molecule that offers a more pronounced sandalwood character.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

General reference only. IFRA, REACH, EU Cosmetics Regulation standards update periodically. Consult current IFRA Standards Library before formulating. Not legal or regulatory advice.

IFRA Status

No restrictions under current IFRA standards.

RIFM Assessment

RIFM has assessed Bacdanol as safe for use in current applications.

Sustainability

Bacdanol is a synthetic ingredient, reducing the need for harvesting natural sandalwood, which is often overexploited. Its production is scalable and consistent, ensuring a stable supply without environmental degradation.

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References

  1. PubChem: Bacdanol PubChem

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

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Ingredient Data Sheet

CAS 28219-61-6
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: DTXSID0044814

Physical Properties

Molecular Weight 208.345 g/mol🔬 EPA CompTox
Density 0.896 g/cm^3📊 OPERA
Boiling Point 280.898 °C📊 OPERA
Melting Point 41.885 °C📊 OPERA
Flash Point 123.175 °C📊 OPERA
Refractive Index 1.478 Dimensionless📊 OPERA
Molar Volume 232.928 cm^3/mol📊 OPERA

Partition & Solubility

LogP (Octanol-Water) 4.354 Log10 unitless📊 OPERA
LogD (pH 5.5) 4.354 Log10 unitless📊 OPERA
LogD (pH 7.4) 4.354 Log10 unitless📊 OPERA
LogKoa (Octanol-Air) 9.2 Log10 unitless📊 OPERA
Water Solubility 0.001 mol/L📊 OPERA
Henry's Law Constant 0 atm-m3/mole📊 OPERA

Transport Properties

Vapor Pressure 0.002 mmHg📊 OPERA
Viscosity 4.421 cP📊 OPERA
Surface Tension 28.851 dyn/cm📊 OPERA
Thermal Conductivity 130.557 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 4 count💻 Computed
Aromatic Rings 0 count💻 Computed
Molar Refractivity 65.981 cm^3/mol📊 OPERA
Polarizability 26.157 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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