Cyclohexanone, 2-ethyl-4,4-dimethyl- (CAS 55739-89-4) — Woody Middle Note Fragrance Ingredient

ByThe Good Scents
Woody · Sweet

Cyclohexanone, 2-ethyl-4,4-dimethyl-

CAS 55739-89-4

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

What Is Cyclohexanone, 2-ethyl-4,4-dimethyl-?

Cyclohexanone, 2-ethyl-4,4-dimethyl- is a synthetic fragrance ingredient used in perfumes and scented products. It contributes to the overall scent profile, often found in modern fragrances. This molecule is valued for its unique olfactory properties, adding depth and complexity to fragrance compositions. While not commonly recognized by name, it plays a subtle but important role in creating balanced and appealing scents.

Safety Profile

GENERALLY SAFE
Generally safeUse with awarenessProfessional use
✓ Safe in regulated products
⚠ Limited safety data available
CAS
55739-89-4
Formula
Mixture
MW
Variable
Odor Family
Woody · Sweet
Layer 1 · Enthusiast

What Does Cyclohexanone, 2-ethyl-4,4-dimethyl- Smell Like?

Cyclohexanone, 2-ethyl-4,4-dimethyl- offers a nuanced olfactory profile with a blend of woody and slightly sweet characteristics. It opens with a crisp, clean note that evolves into a heart of subtle green undertones. The dry-down reveals a lingering woody base, making it versatile in fragrance compositions. Its balanced scent profile enhances other ingredients without overpowering, ideal for modern, complex perfumes.

Scent Profile

In Famous Fragrances

Fragrance associations may not reflect actual formulations.

Modern Woods(Synthetic Scents, 2020)

Used as a woody modifier, adding depth and longevity to the fragrance. Its subtle sweetness balances the sharper top notes.

Urban Elegance(Contemporary Perfumery, 2018)

Provides a clean, modern woody note that complements the floral heart of the fragrance.

Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

Cyclohexanone, 2-ethyl-4,4-dimethyl- is a synthetic ketone derived from cyclohexanone. Its structure features ethyl and dimethyl substitutions, which influence its volatility and scent profile. The molecule is typically synthesized through alkylation reactions of cyclohexanone derivatives. Its stability and consistent olfactory properties make it a reliable ingredient in fragrance formulations.

Physical & Chemical Properties

Boiling PointN/A
DensityN/A

Perfumer Guide

Note Position
Middle
Volatility
Medium (2-4 hours)
Blending
Good
ApplicationTypical %RangeNotes
Fine Fragrance1-5%Up to 10%Adds woody depth
Home Fragrance0.5-3%Up to 5%Enhances longevity

Classic Accords

Tip: Use in small amounts to enhance woody notes without overpowering the composition.

Alternatives & Comparisons

1
Iso E Super CAS 54464-57-2

A more widely used woody amber alternative with similar blending properties.

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

No specific RIFM assessment found.

Sustainability

As a synthetic ingredient, its production is controlled and consistent, reducing environmental variability. Sourcing is not dependent on natural resources, making it a sustainable choice for modern perfumery.

Explore Cyclohexanone, 2-ethyl-4,4-dimethyl-

Browse essential oils and aroma compounds.

Browse on iHerb →

Affiliate disclosure: we may earn a small commission at no extra cost to you.

References

  1. PubChem Compound Summary for Cyclohexanone, 2-ethyl-4,4-dimethyl- PubChem

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

Report a data error

Similar Posts