In short
Stemone (5-methyl-3-heptanone oxime) is a Givaudan oxime with a green, leafy and fig-leaf character.
What Stemone smells like
Stemone (Givaudan) is a green, leafy material most associated with fig leaf. The Good Scents Company lists galbanum, fig leaf, green and weedy; suppliers describe snapped green leaves and stems with a hint of anise, and The Fragrance Foundry adds ivy and blackcurrant. It is of medium strength, and it is most often used in fig-leaf accords; one supplier notes it can partly replace galbanum oil.
- Leading note
- Fig leaf
- Clear facets
- Snapped green stems
- Supporting facets
- Galbanum-like, ivy
- Faint facets
- Anise, blackcurrant
- Character
- Green, leafy, sappy, fresh
What makes Stemone distinctive
It is the fig-leaf green. Where the leaf alcohols smell of grass and the galbanum materials of sharp resin and pepper, Stemone has the milky-green, sappy stem-and-leaf character associated with fig.
How Stemone is used
Used to enrich and modernise green top notes in floral, citrus and fruity compositions, and as the backbone of fig-leaf accords.
Typical role: modifier (used in small amounts to change the character of a blend).
How Stemone differs from similar materials
- Galbanum Oil
- One supplier says Stemone can partly replace galbanum oil; galbanum is sharper, more bitter and resinous, Stemone lighter and fig-leaf-like. (compared directly by a cited source)
- Triplal
- Triplal is cut grass with citrus-peel tartness; Stemone is fig leaf and ivy with a hint of anise.
An asterisk marks a difference that a cited source states directly. The others compare the published descriptions of each material. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.
Formulation considerations
Strong; dose carefully.
Identity and classification
- Type
- Aroma chemical
- Origin
- Synthetic
- Odour family
- Green / Fruity
- Note position
- Top to heart note
- Physical form at room temperature
- Liquid
- CAS number
- 22457-23-4
- Molecular formula
- C8H17NO
- Molecular weight
- 143.23 g/mol
- IUPAC name
- N-(5-methylheptan-3-ylidene)hydroxylamine
The CAS number, formula and molecular weight are taken from PubChem compound 90787, 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 (1,648 reports): H319 causes serious eye irritation (78.3% of reports). 302 of the reports find it does not meet the hazard criteria. 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
-
cis-3-Hexenol
Aroma chemical · Green / Fruity — green, cut grass, leafy, fresh
-
gamma-Decalactone
Aroma chemical · Fruity / Gourmand — peach, fruity, creamy
-
Iso E Super
Aroma chemical · Woody / Amber — woody, velvety, amber, cedar
Stemone is also suggested as a partner on the pages for Figuene 3597 and Milk Lactone.
Used in formulas and accords
Used in 8 published formulas
Stemone is an ingredient in 5 perfume formulas and 3 accords in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Stemone
Is Stemone natural or synthetic?
Stemone is synthetic — it is made by chemical synthesis.
What is the CAS number of Stemone?
22457-23-4. It was checked against PubChem on 19 October 2026.
Which published formulas use Stemone?
Stemone is used in 8 published formulas in the RUŌOD Lab Formula & Accord Library, including Fig Accord, Green Fig Shade and Green Pod Theory. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 90787, checked 19 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- The Good Scents Company — Stemone (Givaudan) — odour database.
- The Fragrance Foundry — Stemone (Givaudan) — distributor's description.
- Scentspiracy — Stemone — distributor's description.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 20 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.