In short
Geranyl isovalerate is the isovaleric ester of geraniol. JECFA describes it as a colourless to pale yellow liquid with a rose odour.
What Geranyl Isovalerate smells like
JECFA, as published by PubChem, describes geranyl isovalerate as a colourless to pale yellow liquid with a rose odour. PubChem links it to natural-product databases. Sigma-Aldrich's food-grade listing describes it differently, as apple, blueberry, green, fruity and pineapple.
- Leading note
- Rose
What makes Geranyl Isovalerate distinctive
A heavier geranyl ester whose published description is simply rose.
Where the descriptions disagree: JECFA gives a rose odour, while Sigma-Aldrich's listing is wholly fruity — apple, blueberry and pineapple — with no rose.
How Geranyl Isovalerate is used
JECFA evaluates it as a flavouring agent, and Sigma-Aldrich sells a food-grade grade with a fruity profile. In perfumery it softens rose and fruity-floral accords, where its rose (in JECFA's description) and apple-pineapple fruitiness (in Sigma-Aldrich's) both play.
Typical role: modifier (used in small amounts to change the character of a blend).
How Geranyl Isovalerate differs from similar materials
- Geranyl Butyrate
- Geranyl butyrate is described as fruity and rose-like; geranyl isovalerate simply as rose.
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 / Fruity
- Note position
- Heart note
- Physical form at room temperature
- Liquid
- Also known as
- Geranyl 3-methylbutanoate
- CAS number
- 109-20-6
- Molecular formula
- C15H26O2
- Molecular weight
- 238.37 g/mol
- IUPAC name
- [(2E)-3,7-dimethylocta-2,6-dienyl] 3-methylbutanoate
The CAS number, formula and molecular weight are taken from PubChem compound 5362830, whose own record lists this CAS number; checked 24 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 (308 of 308 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
Used in formulas and accords
Used in 1 published formula
Geranyl Isovalerate is an ingredient in 1 accord in the Formula & Accord Library.
Further reading
Questions about Geranyl Isovalerate
Is Geranyl Isovalerate natural or synthetic?
The molecule occurs in nature. Commercial Geranyl Isovalerate 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 Isovalerate?
109-20-6. It was checked against PubChem on 24 October 2026.
Which published formulas use Geranyl Isovalerate?
Geranyl Isovalerate is used in 1 published formula in the RUŌOD Lab Formula & Accord Library: Pineapple Accord. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 5362830, checked 24 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- PubChem — Geranyl isovalerate (CID 5362830): JECFA organoleptic description — odour database.
- Sigma-Aldrich — geranyl isovalerate (W251801) — manufacturer's description.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 26 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.






