Ethanone, 1-(2,3-dimethylbicyclo[2.2.1]hept-2-yl)- (CAS 854737-10-3) — Woody Middle Note Fragrance Ingredient

Woody · Green

Ethanone, 1-_(2,_3-_dimethylbicyclo[2.2._1]_hept-_2-_yl)_-

CAS 854737-10-3

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

What Is Ethanone, 1-_(2,_3-_dimethylbicyclo[2.2._1]_hept-_2-_yl)_-?

This synthetic fragrance ingredient is a specialized compound used in modern perfumery to create unique olfactory effects. It’s found in niche and experimental fragrances. Though not widely recognized by name, it contributes to complex scent profiles that push creative boundaries in contemporary perfume design.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
Limited safety data available
Professional handling recommended
CAS
854737-10-3
Formula
Mixture
MW
Variable
Odor Family
Woody · Green
Layer 1 · Enthusiast

What Does Ethanone, 1-_(2,_3-_dimethylbicyclo[2.2._1]_hept-_2-_yl)_- Smell Like?

This bicyclic ketone delivers a sharp, camphoraceous opening with woody-herbal undertones. The initial burst evolves into a dry, pine-like heart with subtle smoky facets. In dry-down, it leaves a lingering mineralic impression reminiscent of hot stones or volcanic ash. The overall effect is angular and modern, with excellent diffusion that makes it useful for creating structural elements in avant-garde compositions.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

This bicyclic ketone belongs to the class of bridged polycyclic compounds, characterized by its rigid molecular framework. The dimethyl substitution pattern on the bicyclo[2.2.1]heptane skeleton creates steric constraints that influence its odor profile. Synthesized through Diels-Alder reactions followed by oxidation, its production requires specialized organic chemistry techniques. The strained geometry contributes to its distinctive volatility pattern and olfactory characteristics.

Physical & Chemical Properties

Perfumer Guide

Note Position
Middle
Volatility
Medium (2-4 hours)
Blending
Moderate
ApplicationTypical %RangeNotes
Fine Fragrance0.1-0.5%Up to 1%Used as structural element
Functional Fragrance0.05-0.2%Up to 0.5%Limited applications

Classic Accords

Tip: Use in trace amounts to add dimensionality to woody bases without overwhelming the composition.

Alternatives & Comparisons

1
Norlimbanol CAS 70788-30-6

Offers similar woody-mineralic effects with better substantivity and more established safety profile.

2
Isobornyl cyclohexanol CAS 471-89-8

Provides comparable structural woody character with less harshness in top notes.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

Not currently restricted by IFRA standards.

RIFM Assessment

No RIFM assessment available for this specific compound.

Sustainability

As a synthetic material, production involves petrochemical feedstocks and energy-intensive processes. The specialized synthesis route limits large-scale production, making it a boutique material with corresponding environmental impacts. Future green chemistry approaches may improve its sustainability profile.

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References

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

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