Fenchol

What Fenchol smells like

Fenchol has a clean, cooling, camphoraceous odour, piney with woody-eucalyptol and slight green-herbal-minty nuances at 1%, in ChemicalBook's description; its taste is camphoraceous and piney with an earthy undertone and minty-citrus lime notes. Supplier listings give woody, earthy, citrus-lime; The Good Scents Company camphor, borneol, pine, woody, dry, sweet and lemon. Takasago describes it as powerful and camphor-like, blending well with lemon-lime notes.

Leading note

Cool camphor-pine

Supporting facets

Lime, earthy

Faint facets

Minty

Character

Clean, cool, powerful

• camphoraceous
• earthy
• lime
• piney

What makes Fenchol distinctive

Camphor and pine with a lime twist — the note that ties a lime accord to its terpenes.

How Fenchol is used

Used in lime, pine and fresh-herbal accords, and in flavours.

Typical role: modifier (used in small amounts to change the character of a blend).

How Fenchol differs from similar materials

Fenchone

Fenchone is warmer and more earthy-bitter; fenchol is cleaner and cooler, with pine and lime.

Borneol

Borneol is drier and more angular, camphor-pine with a peppery earthiness; fenchol carries a lime-citrus note.

Fenchyl Acetate

Fenchyl acetate is softer and sweeter, fir-like and balsamic; fenchol is the cooler, more camphoraceous alcohol.

Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.

Formulation considerations

Low-melting solid; warm gently or predissolve before weighing.

Identity and classification

Type

Aroma chemical

Origin

Occurs in nature

Odour family

Aromatic / Citrus

Note position

Top to heart note

Physical form at room temperature

Solid

Also known as

Fenchyl alcohol, 1,3,3-Trimethylbicyclo[2.2.1]heptan-2-ol

CAS number

1632-73-1

Molecular formula

C10H18O

Molecular weight

154.25 g/mol

IUPAC name

1,3,3-trimethylbicyclo[2.2.1]heptan-2-ol

The CAS number, formula and molecular weight are taken from PubChem compound 15406, whose own record lists this CAS number; checked 19 October 2026.

Safety and compliance

Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory report it as not meeting the GHS hazard criteria (1,590 of 1,632 reports). Unless it is harmonised, this is the notifiers' own classification, not a binding one.

This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.

Materials it works with

• Lime Oil (Expressed)

  Essential oil · Citrus / Green — citrus, green, zesty, aromatic

• Fenchyl Acetate

  Aroma chemical · Aromatic / Citrus — piney, fresh, herbal, citrus

• Borneol

  Aroma chemical · Aromatic / Woody — camphoraceous, earthy, piney, woody

• Eucalyptol

  Aroma chemical · Aromatic / Green — camphoraceous, cool, medicinal

Fenchol is also suggested as a partner on the pages for Fenchone.

Used in formulas and accords

Not currently used in any published formula.

The Formula & Accord Library lists Fenchol here as soon as a published formula, accord or base uses it.

Further reading

• Citrus Oils in Perfumery: Bergamot, Lemon, Orange and Their Limits

  The main citrus oils, phototoxicity and FCF bergamot, why citrus fades and how to extend it, oxidation, allergens, and grades from expressed to terpeneless.

• Aromatic Notes in Perfumery: Lavender, Sage, Rosemary and Mint

  The aromatic family for formulators: lavender, lavandin and spike, clary sage, rosemary, mint and basil — chemistry, chemotypes and EU allergen status.

Questions about Fenchol

Sources

• PubChem — compound 15406, checked 19 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• ChemicalBook — fenchol (CAS 1632-73-1) — odour database.
• The Good Scents Company — fenchol (with Takasago's description) — odour database.
• Parchem — alpha-fenchol — distributor's description.
• Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 21 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.