Phenol, 4-(3,6-dihydro-4-methyl-2H-pyran-2-yl)-2-methoxy- (CAS 128489-02-1) — Woody Heart to base Note Fragrance Ingredient

Woody · Balsamic

Phenol, 4-(3,6-dihydro-4-methyl-2H-pyran-2-yl)-2-methoxy-

CAS 128489-02-1

Origin
synthetic
Note
Heart to base
IFRA
Use with awareness
Data as of: Apr 2026

What Is Phenol, 4-(3,6-dihydro-4-methyl-2H-pyran-2-yl)-2-methoxy-?

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. The molecule’s complex structure allows perfumers to craft novel scent profiles that can’t be achieved with natural materials alone.

Safety Profile

USE WITH AWARENESS
Generally safeUse with awarenessProfessional use
Limited safety data available
Professional handling recommended
CAS
128489-02-1
Formula
Mixture
MW
Variable
Odor Family
Woody · Balsamic
Layer 1 · Enthusiast

What Does Phenol, 4-(3,6-dihydro-4-methyl-2H-pyran-2-yl)-2-methoxy- Smell Like?

This synthetic molecule presents an intriguing duality – it opens with a sharp, almost medicinal phenolic character that quickly softens into a warm, slightly sweet woody-mossy core. The methoxy group lends a subtle powdery nuance, while the dihydropyran moiety contributes a faintly herbal, tea-like quality. As it dries down, the fragrance evolves into a sophisticated base reminiscent of sun-warmed oak barrels with a whisper of dried tobacco leaves.

Scent Profile
Layer 2

Chemistry, Properties & Perfumer Guide

The Chemistry

This synthetic phenol derivative belongs to the class of methoxyphenols with a dihydropyran substitution. The molecule features a methoxy group at the 2-position and a 3,6-dihydro-4-methyl-2H-pyran moiety at the 4-position of the phenolic ring. Its synthesis typically involves the condensation of appropriately substituted phenols with dihydropyran precursors under acidic conditions. The compound’s stereochemistry may influence its olfactory properties, though specific data on chiral forms is currently limited in published literature.

Physical & Chemical Properties

AppearanceNot documented
ColorNot documented

Perfumer Guide

Note Position
Heart to base
Volatility
Moderate (2-4 hours)
Blending
Good with woody and oriental accords
ApplicationTypical %RangeNotes
Fine Fragrance0.5-2%Up to 5%Used as a modifier in woody compositions
Functional Fragrance0.1-0.5%Up to 1%Restricted use in consumer products

Classic Accords

Tip: Use sparingly to add phenolic depth to woody bases without overwhelming the composition.

Alternatives & Comparisons

1
Guaiacol CAS 90-05-1

Simpler phenolic alternative with smoky character, used when less complexity is desired.

2
4-Ethylguaiacol CAS 2785-89-9

Provides similar phenolic warmth with additional spicy nuances.

Layer 3

Safety, Regulatory & Sustainability

⚠ Regulatory Disclaimer

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

IFRA Status

No specific IFRA restrictions found. General phenol guidelines apply.

RIFM Assessment

Full safety assessment not yet completed by RIFM.

Sustainability

As a synthetic material, this ingredient’s production avoids natural resource depletion but requires careful assessment of chemical synthesis routes for environmental impact. The specialized nature of its production suggests moderate energy inputs and potential for byproduct formation that requires proper management.

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References

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

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