Undecavertol (G)

Undecavertol is the perfumer’s green maestro — a synthetic aroma chemical engineered to crystallise the delicate, dewy essence of fresh violet leaf and garden greenery with crystalline clarity. Unlike heavier or wax‑laden natural absolutes, it delivers a transparent, rain‑kissed green note that lifts and modernises compositions.

In fine fragrance creation, this molecule acts as both a fresh top note enhancer and a heart‑note modifier, weaving subtle floral and fruity undertones into complex accords. Its versatility shines in contemporary florals, chypres, aromatic fougères, and innovative green bouquets, where clean, evocative freshness is paramount.

Undecavertol is a top‑to‑heart accord co‑modifier that breathes transparent freshness into fragrances. It is used by perfumers to impart:

• Crisp green foliage effects
• Violet leaf nuance without waxy detritus
• Juicy accents in fruity and floral accords

Typical professional usage levels range from trace amounts up to ~0.5 % in fine fragrance compositions (higher in functional scent products), depending on the desired green impact and blend balance. 

Givaudan describe Undecavertol as being developed in connection with structural elucidation work on unknown trace components of lily-of-the-valley. It has a powerful green-floral character, somewhat related to lily-of-the-valley, with natural, fresh, fruity violet leaf and linden-blossom aspects. It can be used successfully in rose and fruity pear accords.

Although easy to use in most perfumery types, Undecavertol requires careful dosage and blending due to its exceptional strength.

Remarkably persistent for a green note, with a lasting green‑fresh impression on blotter beyond 24 hours and real‑world presence through heart and dry‑down stages.

Product specification.

CAS No: 81782‑77‑6
Odour Description (decreasing): Fresh, Green, Crisp, Violet Leaf, Floral, Lily of the Valley, Subtle Fruity, Pear, Kiwi
Odour Strength: Medium, but highly diffusive
Usage: Effective from the smallest traces, through to 0.5%
Substantivity: 31 hour(s) at 100%
Solvent: None
Synonyms: 4‑methyldec‑3‑en‑5‑ol, Violet Decenol, Methyl Decenol, Figovert
Name: 4‑methyl-3-decen‑5‑ol
Molecular Formula: C₁₁H₂₂O
IFRA: Not restricted

Signal word: Warning

Hazard statements:

Precautionary statements:

• P273 Avoid release to the environment.
• P501 Dispose of contents/container in accordance with local regulations.

Professional/Industrial use only.