1-Decanol, 2-hexyl- (CAS 2425-77-6) — Woody Base Note Fragrance Ingredient

ByThe Good Scents
Woody · Sweet

1-_Decanol, 2-_hexyl-

CAS 2425-77-6

Origin
synthetic
Note
Base
IFRA
Generally safe
Data as of: Apr 2026

What Is 1-_Decanol, 2-_hexyl-?

1-Decanol, 2-hexyl- is a synthetic fragrance ingredient used in perfumery to add depth and longevity to compositions. It’s found in various personal care products and fine fragrances. This ingredient matters because it helps stabilize volatile top notes and contributes to the overall scent profile, making fragrances last longer on the skin.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
✓ Safe in regulated products
⚠ Limited safety data available
CAS
2425-77-6
Formula
Mixture
MW
Variable
Odor Family
Woody · Sweet
Layer 1 · Enthusiast

What Does 1-_Decanol, 2-_hexyl- Smell Like?

1-Decanol, 2-hexyl- offers a subtle, waxy aroma with mild floral undertones. It evolves slowly, providing a stable base for more volatile notes. The dry-down is smooth and slightly sweet, reminiscent of fresh linen with a clean, almost soapy finish. Its longevity makes it ideal for anchoring brighter top notes.

Scent Profile

In Famous Fragrances

Fragrance associations may not reflect actual formulations.

Synthetic Elegance(Lab Notes, 2020)

Used as a base stabilizer to enhance longevity and add a clean, waxy depth to the floral heart.

Modern Musk(AromaTech, 2018)

Provides a subtle, clean backdrop that complements synthetic musks without overpowering them.

Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

1-Decanol, 2-hexyl- is a branched-chain fatty alcohol. It is synthesized through hydroformylation or oxidation processes of corresponding alkenes. Its structure contributes to its stability and mild odor profile, making it useful in fragrance formulations where a neutral, long-lasting base is desired.

Physical & Chemical Properties

Boiling PointNot available
DensityNot available

Perfumer Guide

Note Position
Base
Volatility
Low (hours to days)
Blending
Good
ApplicationTypical %RangeNotes
Fine Fragrance1-5%Up to 10%Adds longevity and stability
Personal Care0.5-3%Up to 5%Provides mild, clean scent

Classic Accords

+ Iso E Super = Clean Woody + Galaxolide = Soft Musk

Tip: Use to anchor volatile top notes and enhance overall longevity.

Alternatives & Comparisons

1
1-Decanol CAS 112-30-1

A linear alcohol with similar properties but a slightly sharper odor profile.

2
2-Hexyl-1-decanol CAS 2425-77-6

A branched alternative offering better stability in formulations.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No IFRA restrictions currently apply.

RIFM Assessment

Limited safety assessment data available; generally regarded as safe for use in fragrances.

Sustainability

As a synthetic ingredient, 1-Decanol, 2-hexyl- is produced in controlled environments with minimal environmental impact. Its production avoids the need for natural resource extraction, making it a sustainable choice for modern perfumery.

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References

  1. PubChem Compound Summary for 1-Decanol, 2-hexyl- PubChem

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

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