(2R*,4R*,4aR*,9bS*)- 2,4-dimethyl-4,4a,5,9b-tetrahydroindeno[ 1,2- d][1,3]dioxine (CAS 578020-40-3) — Woody Unknown Note Fragrance Ingredient

Woody · Balsamic

(2R*,4R*,4aR*,9bS*)- 2,4-dimethyl-4,4a,5,9b-tetrahydroindeno[ 1,2- d][1,3]dioxine

CAS 578020-40-3

Origin
synthetic
Note
Unknown
IFRA
Professional use
Data as of: Apr 2026

What Is (2R*,4R*,4aR*,9bS*)- 2,4-dimethyl-4,4a,5,9b-tetrahydroindeno[ 1,2- d][1,3]dioxine?

This synthetic molecule is a specialized fragrance ingredient used in modern perfumery. It does not occur naturally and is encountered primarily in niche or avant-garde fragrance formulations. Its complex structure allows perfumers to create unique olfactory effects that cannot be achieved with traditional materials.

Safety Profile

PROFESSIONAL USE
Generally safeUse with awarenessProfessional use
Limited safety data available
Requires professional handling
CAS
578020-40-3
Formula
Mixture
MW
Variable
Odor Family
Woody · Balsamic
Layer 1 · Enthusiast

What Does (2R*,4R*,4aR*,9bS*)- 2,4-dimethyl-4,4a,5,9b-tetrahydroindeno[ 1,2- d][1,3]dioxine Smell Like?

No specific odor description available for this obscure synthetic compound. As a complex dioxine derivative, it may contribute woody or balsamic nuances to fragrance compositions, but its olfactory profile remains undocumented in public literature. Perfumers likely use it as a subtle modifier or fixative in experimental formulations.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

This compound belongs to the class of tetrahydroindeno-dioxines, characterized by a fused indene-dioxine structure with four stereocenters. The specific stereochemistry (2R*,4R*,4aR*,9bS*) suggests potential chiral effects on odor perception. As a purely synthetic material, it would typically be prepared through multi-step organic synthesis involving cyclization reactions of appropriately substituted indene precursors.

Physical & Chemical Properties

Perfumer Guide

Note Position
Unknown
Volatility
Unknown
Blending
Unknown
ApplicationTypical %RangeNotes
Experimental PerfumeryTrace amounts0.1-1%Used for novel effects

Classic Accords

Tip: This material should only be used by experienced perfumers with proper safety protocols.

Alternatives & Comparisons

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No IFRA restrictions documented for this obscure synthetic.

RIFM Assessment

No RIFM assessment found for this compound.

Sustainability

As a synthetic material, this compound’s environmental impact depends on production methods. Without specific manufacturing data, sustainability cannot be assessed. Synthetic materials generally avoid natural resource depletion but may involve energy-intensive processes.

Explore (2R*,4R*,4aR*,9bS*)- 2,4-dimethyl-4,4a,5,9b-tetrahydroindeno[ 1,2- d][1,3]dioxine

Browse essential oils and aroma compounds.

Browse on iHerb →

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

References

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

    Report a data error

    Similar Posts