PF
← Ingredient library
← prevnext →

ORTHO-TERTIARY-BUTYL-4,5-DIMETHYL PHENOL

CAS
—
EC
—
Material type
synthetic aroma chemical
Canonical source
arctander
Formulation

Usage guidance

Suggested min
—
Suggested max
—
Cost
—
Stock
—
Compatibility tags
leatherchyprefougerewoodytobaccoincense
How it behaves

Olfactory profile

Family
industrial
Note tendency
Middle
Descriptors
woodyphenolic

A dry, phenolic aroma chemical with a distinctly leathery, smoky character reminiscent of birch tar or creosote softened by an alkyl-phenol woodiness. Over time it settles into a tenacious dry-wood and cade-like nuance with a faint animalic edge.AI · claude-opus-4-7

Intensity
7 / 10
Tenacity
8 / 10
Volatility
3 / 10
Members

The rest of this material

Composition, IFRA restriction figures, allergen concentrations and where this material is bought are part of Perfume Foundry’s curated library and need an account. Create one or sign in.

chemicals · No. 446

Arctander monograph

Perfume and Flavor Chemicals, page 191.

BASEtenacity · moderatepower · strong
phenolicwoodytarry
MW
178.28
BP
—
MP
—
Sp.Gr.
—
Refractive n
—
Rotation
—
Appearance

Colorless oily liquid, yellowish after exposure to air and daylight.

Solubility

Slightly soluble in water, soluble in alcohol and oils.

Odor

Powerful, but not very pleasant 'tanning' type of odor, sometimes described as 'Oak-moss-like' — at other times described as 'Cuir de Russie' type. Most observers will agree that the odor is distinctly phenolic, very dry and almost woody, tarry.

Uses in perfumery

There are many other better odorants in this fragrance class and it is most likely that the subject phenol will remain a curiosity, not commercially available.

Production

Produced from iso-Butylene plus Xylenol, using Phosphoric acid as a condensing agent.

Identity
Aliases · 1
2-tertiary-Butyl-4,5-dimethylphenol
Compliance note. Restriction data is sourced directly from IFRA publications and preserved with its document excerpt. Perfume Foundry is a compliance-support tool — not a substitute for a qualified safety assessor (CPSR / PIF).