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ALPHA-TERPINENE

CAS
99-86-5
EC
—
Material type
synthetic aroma chemical
Canonical source
arctander
Formulation

Usage guidance

Suggested min
—
Suggested max
—
Cost
—
Stock
—
Compatibility tags
citrus-colognepine-accordherbalfougere
How it behaves

Olfactory profile

Family
citrus
Note tendency
Top
Descriptors
citrusy

A light, dry citrus-terpene note with a lemony-woody character reminiscent of lime peel and pine needle. Fresh and slightly turpentine-like on top, fading quickly to a faint woody-herbal dryness.AI · claude-opus-4-7

Intensity
5 / 10
Tenacity
2 / 10
Volatility
9 / 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.

Reverse-composition

Contained in

Other ingredients whose composition declares this material as a constituent. The percentage shown is the supplier-declared concentration in that parent.

chemicals · No. 2873

Arctander monograph

Perfume and Flavor Chemicals, page 1272.

tenacity · lowG.R.A.S.
refreshinglemonycitrusy
MW
136.24
BP
176°C
MP
—
Sp.Gr.
0.84
Refractive n
—
Rotation
—
Appearance

Colorless oily liquid.

Solubility

Insoluble in water, soluble in alcohol and oils.

Odor

Refreshing, lemony-citrusy odor of poor tenacity.

Flavor

The taste is mostly lemony in concentrations below 40 ppm, but becomes rather bitter at higher levels.

Uses in perfumery

The title terpene has recently become an article of commerce, mainly for the purpose of making it available for those interested in making artificial essential oils. It has found use in artificial Lemon oil, Mint oils, and in trace amounts in other essential oils, mainly for flavor purposes.

Production

1) by isolation from the Terpene fraction of sweet Orange oil or 'Orange terpenes'. The title material may constitute as much as 8 to 10% of the total Monoterpenes. 2) by isolation from fractions of American Turpentine oil. 3) from 1-Methyl-4-iso-propylcyclohexadien-1-3-one-2. 4) from Terpinene dihydrochloride with Aniline.

Identity
Aliases · 3
p-Mentha-1,3-dieneJ-Methyl-4-iso-propylcyclohexadienepara-Menthadiene
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).