Geranyl Formate

Aroma chemical · Floral / Green

rosy, green, fresh, leafy — top to heart note.

Aroma illustration for Geranyl Formate: a red rose and green leaves, for its rosy, green and leafy notes. It illustrates smell associations, not the material or its source.Skeletal formula of Geranyl Formate (Geraniol formate), C11H18O2, drawn from PubChem's 2D record. Stereochemistry is not shown.
Aroma View: an illustration of what Geranyl Formate smells like (rosy, green, leafy), drawn by RUŌOD Lab — not its appearance or its source.Skeletal formula drawn by RUŌOD Lab from PubChem's 2D record (CID 5282109). Stereochemistry is not shown; the coloured background is decoration.
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By the RUŌOD Lab TeamRevision 1Updated

In short

Geranyl formate is the formate ester of geraniol, found in geranium oil. It has a fresh, green-rosy and leafy odour.

What Geranyl Formate smells like

Geranyl formate is fresh, green, leafy and rose-like. A chemical reference gives fresh, green, leafy and rose; Prodasynth lists fresh, green, leafy, rosy; Bedoukian a fresh, dry, ethereal green, useful for a lofty green top note. Other listings add tea rose, neroli and tea-leaf facets, a pear-like fruitiness (Moellhausen) or a gentle rose-geranium body. One supplier stresses that it is resolutely fresh and dry, with no sweetness.

Leading note
Fresh green rose
Clear facets
Leafy
Supporting facets
Tea rose, tea leaf
Faint facets
Neroli, pear
Character
Fresh, dry, green, ethereal
  • rosy
  • green
  • fresh
  • leafy

What makes Geranyl Formate distinctive

Dryness. It is the least sweet of the geranyl esters — a lofty, leafy, tea-rose green rather than a fruity rose.

Where the descriptions disagree: Some describe fruity-sweet facets; one supplier insists it has no sweetness at all.

How Geranyl Formate is used

Used to give a fresh, green, leafy lift to rose and geranium compositions and to top notes.

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

How Geranyl Formate differs from similar materials

Citronellyl Formate
Citronellyl formate is a more pungent rose petal with pronounced leafy geranium and a honeyed undertone; geranyl formate is drier and more ethereal, with tea-rose notes.

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.

Identity and classification

Type
Aroma chemical
Origin
Occurs in nature
Odour family
Floral / Green
Note position
Top to heart note
Physical form at room temperature
Liquid
Also known as
Geraniol formate
CAS number
105-86-2
Molecular formula
C11H18O2
Molecular weight
182.26 g/mol
IUPAC name
[(2E)-3,7-dimethylocta-2,6-dienyl] formate

The CAS number, formula and molecular weight are taken from PubChem compound 5282109, 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 classify it (1,708 reports): H317 may cause an allergic skin reaction (77.4% of reports). 357 of the reports find it does not meet the hazard criteria. A skin sensitiser classification concerns handling the neat material and the dose in a finished product; the IFRA Standards, where they apply, set the limits. 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

Used in formulas and accords

Used in 1 published formula

Geranyl Formate is an ingredient in 1 perfume formula in the Formula & Accord Library.

RUŌOD House Originals

Original compositions by RUŌOD House.

Further reading

Questions about Geranyl Formate

Is Geranyl Formate natural or synthetic?

The molecule occurs in nature. Commercial Geranyl Formate may be made by synthesis or obtained from natural sources, so check the supplier's specification if the distinction matters to you.

What is the CAS number of Geranyl Formate?

105-86-2. It was checked against PubChem on 19 October 2026.

Which published formulas use Geranyl Formate?

Geranyl Formate is used in 1 published formula in the RUŌOD Lab Formula & Accord Library: Cut Stem Atelier. Each is listed with a link under "Used in formulas and accords" on this page.

Sources

Your own records, next to the reference

Keep your own record of Geranyl Formate — supplier, cost, stock, dilutions and where it is used — in RUŌOD Lab's material library.