In short
Adoxal is a trade name for 2,6,10-trimethylundec-9-enal, a branched aliphatic aldehyde with a fresh, marine-aldehydic odour. It is used for clean, ozonic lift in aldehydic and aquatic accords.
What Adoxal smells like
Adoxal (Givaudan) is a fresh, aldehydic, floral, waxy and watery material, listed by The Good Scents Company in its marine category. A distributor describes it as ozonic, aldehydic and marine, with a waxy lily-of-the-valley undertone and a faint ambergris-like warmth, and places it close to Calone's watermelon-marine territory but with more aldehydic complexity. Givaudan's own technical description was not found.
- Leading note
- Watery aldehydic
- Clear facets
- Marine, ozonic
- Supporting facets
- Waxy floral, muguet
- Faint facets
- Ambergris-like warmth, melon
- Character
- Fresh, watery, waxy, clean
What makes Adoxal distinctive
It is a marine note built on an aldehyde: watery and ozonic like Calone, but waxier and more floral, with an aldehydic complexity.
How Adoxal is used
Used for fresh, watery-aldehydic and marine effects, including in functional products.
Typical role: modifier (used in small amounts to change the character of a blend); lift (adds diffusion and radiance, especially at the top).
How Adoxal differs from similar materials
- Calone
- A distributor places Adoxal close to Calone's marine territory but with more aldehydic complexity; Calone is saltier and more mineral, Adoxal waxier and more floral. (compared directly by a cited source)
- Myrac Aldehyde
- Myrac aldehyde is fresh air with orange and fruit; Adoxal is more watery and marine, with a waxy floral undertone.
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.
Identity and classification
- Type
- Aroma chemical
- Origin
- Synthetic
- Odour family
- Aldehydic / Aquatic
- Note position
- Heart note
- Physical form at room temperature
- Liquid
- Also known as
- 2,6,10-Trimethylundec-9-enal
- CAS number
- 141-13-9
- Molecular formula
- C14H26O
- Molecular weight
- 210.36 g/mol
- IUPAC name
- 2,6,10-trimethylundec-9-enal
The CAS number, formula and molecular weight are taken from PubChem compound 98403, 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 (1,643 reports): H400 very toxic to aquatic life (84% of reports); H410 very toxic to aquatic life with long lasting effects (83.5% of reports); H317 may cause an allergic skin reaction (79.1% of reports). 261 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
-
Aldehyde C-12 MNA
Aroma chemical · Aldehydic / Woody — aldehydic, resinous, ambergris, incense
-
Calone
Aroma chemical · Aquatic / Metallic — marine, watermelon, ozonic, watery
-
Aldehyde C-11 Undecylenic (10-Undecenal)
Aroma chemical · Aldehydic / Floral — aldehydic, waxy, clean, ozonic
-
Hedione
Aroma chemical · Floral / Citrus — jasmine, transparent, citrus, airy
Used in formulas and accords
Used in 6 published formulas
Adoxal is an ingredient in 3 perfume formulas and 3 accords in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Adoxal
Is Adoxal natural or synthetic?
Adoxal is synthetic — it is made by chemical synthesis.
What is the CAS number of Adoxal?
141-13-9. It was checked against PubChem on 19 October 2026.
Which published formulas use Adoxal?
Adoxal is used in 6 published formulas in the RUŌOD Lab Formula & Accord Library, including Blood Accord, Blue Accord and Champagne Static. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- PubChem — compound 98403, 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 — Adoxal (marine odour category) — odour database.
- Fraterworks — Adoxal — 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.