In short
Lactojasmone, also called dihydrojasmone lactone, is a gamma-lactone (5-hexyl-5-methyloxolan-2-one). JECFA describes a jasmine odour.
What Lactojasmone smells like
JECFA, as published by PubChem, describes dihydrojasmone lactone as a clear, colourless liquid with a jasmine odour. Fraterworks describes an intensely floral aroma recalling jasmine and tuberose, with a distinctive creamy, lactonic character and subtle fruity undertones of yellow plum and peach.
- Leading note
- Jasmine
What makes Lactojasmone distinctive
A lactone whose published description is jasmine.
Concentration and dilution
Fraterworks lists 10% as a common dilution.
How Lactojasmone is used
Fraterworks uses it to enrich white florals and jasmine accords, to add milky sandalwood facets and to make fruit notes more realistic.
Typical role: modifier (used in small amounts to change the character of a blend).
How Lactojasmone differs from similar materials
- Jasmine Lactone
- Jasmine lactone is creamy, peachy and jasmine; lactojasmone is described simply as jasmine.
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
- Synthetic
- Odour family
- Floral / Fruity
- Note position
- Heart to base note
- Physical form at room temperature
- Liquid
- Also known as
- Dihydrojasmone lactone, 5-Hexyl-5-methyloxolan-2-one
- CAS number
- 7011-83-8
- Molecular formula
- C11H20O2
- Molecular weight
- 184.27 g/mol
- IUPAC name
- 5-hexyl-5-methyloxolan-2-one
The CAS number, formula and molecular weight are taken from PubChem compound 285097, 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 (273 of 300 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 2 published formulas
Lactojasmone is an ingredient in 1 perfume formula and 1 accord in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Lactojasmone
Is Lactojasmone natural or synthetic?
Lactojasmone is synthetic — it is made by chemical synthesis.
What is the CAS number of Lactojasmone?
7011-83-8. It was checked against PubChem on 24 October 2026.
Which published formulas use Lactojasmone?
Lactojasmone is used in 2 published formulas in the RUŌOD Lab Formula & Accord Library: Jasmine Rice Accord and Magnolia Cartography. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 285097, checked 24 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- PubChem — Dihydrojasmone lactone (CID 285097): JECFA organoleptic description — odour database.
- Fraterworks — Lactojasmone — distributor'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.






