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Trepanol

Q: Is Trepanol natural or synthetic?

. Extraction: Synthetic molecule. Production details not publicly disclosed..

GREENS, HERBS AND FOUGERES / green · fresh

Trepanol

Category	GREENS, HERBS AND FOUGERES
Subcategory	green · fresh
Origin
Volatility	Top Note
Botanical	N/A — synthetic molecule (a Swiss fragrance house)
Appearance	colorless clear liquid
Odor Strength	High
Producing Countries	Switzerland (a Swiss fragrance house)
Pyramid	Top

Fresh, green-ozonic, and dewy.

Scent
The Full Story
Fun Fact
Extraction & Chemistry
In Perfumery

Scent

Fresh, green, and dewy with a light ozonic-metallic edge. More naturalistic than Calone (which is aggressively marine-mel on). Greener and more transparent than Hedione (which has a jasmine-radiant quality). Less herbal than cis-3-hexenol; more clean.

The impression is of a garden in early morning — wet grass, cool air, the faint metallic scent of dew on metal.

Evolution over time

Immediately

Bright, dewy, green-ozonic — morning garden freshness

After a few hours

Softer, transparent greenness — less metallic, more natural

After a few days

Faint, clean, green trace — quiet and disappearing

The Full Story

It provides a transparent, dewy freshness that reads as natural and green rather than synthetic and aquatic — a distincti on that matters in contemporary use where the aggressive marine notes of the 1990s have given way to subtler, more naturalistic freshness.

The molecule occupies a space between pure green notes (cis-3-hexenol, galbanum) and ozonic-aquatic molecules (Calone, Helional). This middle ground — dewy, green, slightly metallic but not aggressively marine — is commercially valuable for contemporary fresh fragrances.

It is used in fine fragrance and premium functional perfumery where a clean green freshness is desired.

This note in Première Peau. Nuit Elastique · Rose Monotone. Sample all seven extraits in the Discovery Set.

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Related: Acronychia Pedunculata · Adoxal · Agave · Algae · Aloe Vera · Aromatic Notes · Asparagus · Avocado

Did You Know?

Did you know?

The shift from aggressive ozonic-marine molecules (1990s-2000s) to subtler, green-dewy freshness molecules (2010s-present) reflects one of the clearest style changes in contemporary use — what perfumers call moving from 'shower gel fresh' to 'garden fresh.'

Extraction & Chemistry

Extraction method: Synthetic molecule. Production details not publicly disclosed.

Molecular Formula	C10 H20 O
CAS Number	13019-22-2
Botanical Name	N/A — synthetic molecule (a Swiss fragrance house)
IFRA Status	No known restrictions
Synonyms	9-DECEN-1-OL · BIOACTIVITY SUMMARY:LISTING · DG SANTE FOOD FLAVOURINGS:02.138 DEC-9-EN-1-OL · DG SANTE FOOD FLAVOURINGS:02.138 DEC-9-EN-1-OL · ECHAEINECS - REACH PRE-REG:235-878-6 · FOOD CHEMICALS CODEX LISTED:NO · FORMULA:C10 H20 O · FRAGRANCE DEMO FORMULAS · INSOLUBLE IN: · MDL:MFCD00002992 · MOLECULAR WEIGHT:156.26860000 · NMR PREDICTOR:PREDICT · NMR PREDICTOR:PREDICT (WORKS WITH CHROME · EDGE OR FIREFOX) · NIKKAJI WEB:J34.877E · NOTES:works with ROSE NOTES.
Physical Properties
Odor Strength	High
Lasting Power	340 hours
Appearance	colorless clear liquid
Boiling Point	234.00 to 238.00 °C. @ 760.00 mm Hg
Flash Point	210.00 °F. TCC ( 99.00 °C. )
Specific Gravity	0.84000 to 0.84800 @ 25.00 °C.
Refractive Index	1.44600 to 1.45100 @ 20.00 °C.

In Perfumery

Trepanol is a top-to-heart note providing clean green-ozonic freshness. It modernizes fresh compositions by offering naturalistic dewiness without the aggressive aquatic character of older marine molecules. Useful in green, fresh, floral-fresh, and contemporary masculine fragrance families.