RUŌOD Lab

Scentenal

Aroma chemical · Aquatic / Green

marine, watery, green, floral, aldehydic — top to heart note.

Aroma illustration for Scentenal: blue sea waves, green leaves and pink flowers, for its marine, green and floral notes. It illustrates smell associations, not the material or its source.Skeletal formula of Scentenal, C12H18O2, drawn from PubChem's 2D record. Stereochemistry is not shown.
Aroma View: an illustration of what Scentenal smells like (marine, green, floral), drawn by RUŌOD Lab — not its appearance or its source.Skeletal formula drawn by RUŌOD Lab from PubChem's 2D record (CID 163529). Stereochemistry is not shown; the coloured background is decoration.
Images

By the RUŌOD Lab TeamRevision 1Updated

In short

Scentenal is a dsm-firmenich aldehyde with a marine note and a watery, green floral character. It is a strong modifier of ozone and marine notes.

What Scentenal smells like

Firmenich describes Scentenal as a complex aldehyde marine note associated with a watery green floral character and slightly mossy undertones, with discrete fruity pear facets and a slightly alcoholic side; it is best with other green notes, in chypres, colognes, masculine notes and sheer florals, and an excellent modifier of other ozone-marine notes. Scentspiracy describes a high-impact green-aldehydic, metallic-ozonic freshness with cucumber facets.

Leading note
Marine aldehyde
Clear facets
Watery green
Supporting facets
Floral
Faint facets
Mossy, pear
Character
Fresh, diffusive
  • marine
  • watery
  • green
  • floral
  • aldehydic

What makes Scentenal distinctive

An aldehyde that carries the marine note on a green, floral watery body.

How Scentenal is used

Firmenich recommends it with green notes and as a modifier of other ozonic marine materials.

Typical role: modifier (used in small amounts to change the character of a blend).

How Scentenal differs from similar materials

Floralozone
Floralozone is a cleaner, neutral fresh-air note; Scentenal is aldehydic and marine with a green, mossy floral side.

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
Aquatic / Green
Note position
Top to heart note
Physical form at room temperature
Liquid
Also known as
Octahydro-5-methoxy-4,7-methano-1H-indene-2-carboxaldehyde
CAS number
86803-90-9
Molecular formula
C12H18O2
Molecular weight
194.27 g/mol
IUPAC name
8-methoxytricyclo[5.2.1.02,6]decane-4-carbaldehyde

The CAS number, formula and molecular weight are taken from PubChem compound 163529, whose own record lists this CAS number; checked 24 October 2026.

Safety and compliance

The IFRA Standards Library lists a Standard covering Scentenal:

  • "Methoxy dicyclopentadiene carboxaldehyde" — Restriction, 49th Amendment, published 2020-01

Limits differ by product category and are set out in the Standard itself; this page does not reproduce them. The list above reflects the library as read on 19 October 2026.

Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory classify it (1,354 reports): H317 may cause an allergic skin reaction (100% of reports); H411 toxic to aquatic life with long lasting effects (100% of reports). 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

  • Calone

    Aroma chemical · Aquatic / Metallic — marine, watermelon, ozonic, watery

  • Floralozone

    Aroma chemical · Aquatic / Floral — ozonic, marine, floral, airy

  • Helional

    Aroma chemical · Aquatic / Floral — ozonic, watery, green, floral

Used in formulas and accords

Used in 3 published formulas

Scentenal is an ingredient in 1 perfume formula and 2 accords in the Formula & Accord Library.

Community formulas

RUŌOD House Originals

Original compositions by RUŌOD House.

  • Reef Light

    RUŌOD House Original · listed as “Scentenal 10% DPG”, at 10% in DPG

Further reading

  • Aquatic and Marine Notes in Perfumery

    The materials behind aquatic, marine and ozonic perfumes — Calone, watery aldehydes, dihydromyrcenol — and how to build and dose an aquatic accord.

Questions about Scentenal

Is Scentenal natural or synthetic?

Scentenal is synthetic — it is made by chemical synthesis.

What is the CAS number of Scentenal?

86803-90-9. It was checked against PubChem on 24 October 2026.

Which published formulas use Scentenal?

Scentenal is used in 3 published formulas in the RUŌOD Lab Formula & Accord Library: Blue Accord, Reef Light and Sea Salt Accord. Each is listed with a link under "Used in formulas and accords" on this page.

Is Scentenal covered by an IFRA Standard?

Yes. The IFRA Standards Library lists a Standard covering it: "Methoxy dicyclopentadiene carboxaldehyde" — Restriction, 49th Amendment. The limits depend on the product category; read the Standard itself before formulating.

Sources

  • PubChem — compound 163529, checked 24 October 2026.
  • PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
  • IFRA — Standards Library, read 19 October 2026.
  • Firmenich — Scentenal 981810 marketing sheet — manufacturer's description.
  • Scentspiracy — Scentenal — distributor's description.
  • Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 24 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.

Your own records, next to the reference

Keep your own record of Scentenal — supplier, cost, stock, dilutions and where it is used — in RUŌOD Lab's material library.

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