In short
Romandolide is a Firmenich alicyclic musk with a clean, ambrette-like, slightly fruity musk note.
What Romandolide smells like
Romandolide (Firmenich) is a delicate musky note that behaves like a top-note musk, less fruity and less ambrette than Helvetolide, with more tenacity and volume on the drydown, in Firmenich's own description. It is classed as an alicyclic musk.
- Leading note
- Delicate clean musk
- Faint facets
- Ambrette, fruity
- Character
- Delicate, clean, voluminous
What makes Romandolide distinctive
A musk that shows from the top: delicate and clean, with volume in the drydown.
How Romandolide is used
Used to give a musky lift from the top note through the drydown in fine and functional fragrance.
Typical role: fixative (slow to evaporate; helps a blend last and holds lighter notes); lift (adds diffusion and radiance, especially at the top).
How Romandolide differs from similar materials
- Helvetolide
- Helvetolide is fruitier and more ambrette, with pear; Romandolide is cleaner, with more tenacity and volume. (compared directly by a cited source)
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
Stable in most bases.
Identity and classification
- Type
- Aroma chemical
- Origin
- Synthetic
- Odour family
- Musky / Fruity
- Note position
- Base note
- Physical form at room temperature
- Liquid
- CAS number
- 236391-76-7
- Molecular formula
- C15H26O4
- Molecular weight
- 270.36 g/mol
- IUPAC name
- [2-[1-(3,3-dimethylcyclohexyl)ethoxy]-2-oxoethyl] propanoate
The CAS number, formula and molecular weight are taken from PubChem compound 21933618, 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 (171 reports): H411 toxic to aquatic life with long lasting effects (100% of 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
-
Helvetolide
Aroma chemical · Musky / Fruity — musky, fruity, pear, radiant
-
Habanolide
Aroma chemical · Musky / Metallic — musky, clean, metallic, powdery
-
Hedione
Aroma chemical · Floral / Citrus — jasmine, transparent, citrus, airy
Used in formulas and accords
Used in 27 published formulas
Romandolide is an ingredient in 25 perfume formulas, 1 accord and 1 base in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Romandolide
Is Romandolide natural or synthetic?
Romandolide is synthetic — it is made by chemical synthesis.
What is the CAS number of Romandolide?
236391-76-7. It was checked against PubChem on 19 October 2026.
Which published formulas use Romandolide?
Romandolide is used in 27 published formulas in the RUŌOD Lab Formula & Accord Library, including Ambrette Halo, Asphalt Peony and Bitter Ferry. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 21933618, checked 19 October 2026.
- PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
- dsm-firmenich — Romandolide — manufacturer's description.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 21 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.