About this material
Scentenal
Discover the quiet sophistication of Scentenal by Firmenich — a refined marine aldehyde note crafted for perfumers who seek both clarity and depth.
Scentenal unveils a luminous aquatic character, where airy marine freshness meets a delicate green floral heart.
Its profile is elegantly nuanced: a translucent watery brightness softened by subtle mossy undertones, evoking the sensation of sea breeze drifting across verdant coastal landscapes.
The result is a modern, polished material that feels both clean and intriguingly complex.
Highly prized for its versatility, Scentenal excels when woven into green accords, bringing lift and natural fluidity to chypres, eau de colognes, and contemporary masculine compositions.
In floral creations, it lends a sheer, dewy freshness—enhancing petals without overwhelming their natural beauty.
It also serves as an exceptional modifier for ozone and marine notes, refining their sharpness into something more rounded, sophisticated, and wearable.
Technically reliable as well as olfactively elegant, Scentenal remains stable across most formulation mediums.
Its impact is powerful even at minimal levels, typically used below 0.5% in fine fragrance—often in mere traces to achieve a subtle yet transformative effect.
For functional applications such as soaps and candles, it can be employed more generously, up to 2%, while maintaining its distinctive freshness.
Scentenal is not simply a marine note—it is a tool of precision, designed to elevate compositions with clarity, balance, and modern refinement.
Scent character
Highlights from the material’s listed odour profile.
Note position
Heart note
Material character
A closer lookOdour strength
Listed qualitative strength
Tenacity / substantivity
287 hour(s)
at 100%
Listed reference conditions
Supplied strength is 1% in DPG.
Fragrance development
Heart note
Illustrative note development · no measured evaporation data
Molecular identity

C12H18O2
CAS-linked compound reference — Scentenal
This compound record is linked to the explicitly recorded CAS number. It is not supplier confirmation of the supplied grade, purity, stereochemistry, isomer proportions or complete composition.
Named active material only. These properties do not describe the complete supplied dilution or carrier.
- Reference molecular weight
- 194.27 g/mol
- Reference IUPAC name
- 8-methoxytricyclo[5.2.1.02,6]decane-4-carbaldehyde
More compound properties
Computed and structural reference properties for the named compound. These are not measured supplier specifications or properties of a complete dilution, mixture or batch.
- XLogP (computed)
- 1.4
- Exact mass (Da)
- 194.130679813
- Monoisotopic mass (Da)
- 194.130679813
- Topological polar surface area (Ų)
- 26.3
- Complexity
- 251
- Formal charge
- 0
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 2
- Heavy atoms
- 14
- Isotope atoms
- 0
- Atom stereocentres
- 6
- Bond stereocentres
- 0
- Covalent units
- 1
- SMILES
- COC1CC2CC1C3C2CC(C3)C=O
- InChI
- InChI=1S/C12H18O2/c1-14-12-5-8-4-11(12)10-3-7(6-13)2-9(8)10/h6-12H,2-5H2,1H3
- InChIKey
- UOGMZEGKCNHMBF-UHFFFAOYSA-N
Reference data checked 2026-10-27.
CAS 86803-90-9 · reference checked 2026-10-27.
Fragrance allergen reference
Generic regulatory reference only. This is not a supplier allergen declaration, measured composition, allergen-free claim or finished-product labelling assessment.
Raw undiluted material reference. These data refer to the named active material, not the complete supplied dilution. A raw-material IFRA ceiling is not a use level for this diluted product. The assessor must account for the actual concentration, carrier and all other formula contributions.
European Union / Northern Ireland
No direct listed-entry CAS match in this jurisdiction’s held reference set. This does not mean the material is allergen-free. Constituents, grouped entries and natural-material composition may require further review.
Finished-cosmetic declaration thresholds: greater than 0.001% leave-on; greater than 0.01% rinse-off. Apply the current target-market rules to the actual complete formulation; no concentration is inferred here.
Commission Regulation (EU) 2023/1545 · Regulation (EU) 2023/1545 with 11 November 2025 corrigendum; checked 2026-10-26.
Held EU transition dates: placing noncompliant products on the market until 2026-07-31; making them available until 2028-07-31. Check applicability and current law for the intended market. 2025 corrigendum.
Great Britain
No direct listed-entry CAS match in this jurisdiction’s held reference set. This does not mean the material is allergen-free. Constituents, grouped entries and natural-material composition may require further review.
Finished-cosmetic declaration thresholds: greater than 0.001% leave-on; greater than 0.01% rinse-off. Apply the current target-market rules to the actual complete formulation; no concentration is inferred here.
Regulation (EC) No 1223/2009, Annex III (Great Britain) · legislation.gov.uk current text checked 2026-10-26.
Current supplier composition or allergen declarations are required to assess naturals, bases, mixtures and actual concentrations. Reference data checked 2026-10-26; bundle 2026-10-27. Supplementary private documents remain separate.
Product specification
| CAS number | 86803-90-9 |
|---|---|
| Odour description (decreasing) | Fresh, Marine, Sea Breeze, Watery, Floral, Ozone |
| Odour strength | High |
| Perfumery use | Effective from the smallest traces through to 2%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 287 hour(s) at 100% |
| Solvent | DPG to give a 1% solution of Scentenal |
| Physical state | Liquid |
| Synonyms | octahydro-5-methoxy-4,7-methano-1H-indene-2-carboxaldehyde, ocean carboxaldehyde |
| IFRA document scope | Where an IFRA document is shared with the raw material, it refers to the raw, undiluted material. It is supplied as a reference for this diluted product; its stated limits are not limits for the supplied dilution. Check the document scope and assess the intended finished formulation. This notice does not confirm that a document is available. |
Safety & handling
Hazard statements:
- H317 May cause an allergic skin reaction.
- H411 Toxic to aquatic life with long lasting effects.
Precautionary statements:
- P261 Avoid breathing mist/vapours.
- P272 Contaminated work clothing should not be allowed out of the workplace.
- P273 Avoid release to the environment.
- P302+P352 IF ON SKIN: Wash with plenty of soap and water.
- P333+P313 If skin irritation or rash occurs: Get medical advice/attention.
- P391 Collect spillage.
Datasheets & customer documents
Available documents are attached to eligible completed orders in your account.
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Supplementary documents are supplied only where explicitly listed and available. Check documentation information
Purchased as a guest? Follow the SDS request guidance in our Documentation Supply Policy and provide proof of purchase.
Documentation Supply PolicyIFRA formulation guide
Generic reference only — not an IFRA certificate, compliance decision or use recommendation. The Responsible Person and qualified safety assessor must assess the actual finished formula using current applicable IFRA Standards, supplementary documentation where available and the CPSR.
Raw undiluted material reference. These data refer to the named active material, not the complete supplied dilution. A raw-material IFRA ceiling is not a use level for this diluted product. The assessor must account for the actual concentration, carrier and all other formula contributions.
Source: 51st Amendment overview, held source checked 2026-10-21. Bundle 2026-10-27. Individual Standards prevail over the overview.
Methoxy dicyclopentadiene carboxaldehyde
RESTRICTION · CAS 86803-90-9
Category 4 — fine fragrance: 1.1% in the finished consumer product
All applicable specification, purity and other Standard conditions must also be met.
All IFRA categories and Standard conditions
| Category 1 | 0.19% in the finished consumer product |
|---|---|
| Category 2 | 0.057% in the finished consumer product |
| Category 3 | 1.2% in the finished consumer product |
| Category 4 | 1.1% in the finished consumer product |
| Category 5A | 0.27% in the finished consumer product |
| Category 5B | 0.27% in the finished consumer product |
| Category 5C | 0.27% in the finished consumer product |
| Category 5D | 0.091% in the finished consumer product |
| Category 6 | 0.63% in the finished consumer product |
| Category 7A | 2.2% in the finished consumer product |
| Category 7B | 2.2% in the finished consumer product |
| Category 8 | 0.091% in the finished consumer product |
| Category 9 | 2.1% in the finished consumer product |
| Category 10A | 2.1% in the finished consumer product |
| Category 10B | 7.5% in the finished consumer product |
| Category 11A | 0.091% in the finished consumer product |
| Category 11B | 0.091% in the finished consumer product |
| Category 12 | No numeric restriction in this overview cell; review the full Standard and other applicable requirements. |
CAS numbers (comment): The scope of this Standard includes, but is not limited to the CAS number(s) indicated above; any other CAS number(s) used to identify this fragrance ingredient should be considered in scope as well.
Contributions from other sources: None to consider
Flavor use consideration: Due to the possible ingestion of small amounts of fragrance ingredients from their use in products in Categories 1 and 6, materials must not only comply with IFRA Standards but must also be recognized as safe as a flavoring ingredient as defined by the IOFI Code of Practice (www.iofi.org). For more details see chapter 1 of the Guidance for the use of IFRA Standards.
IFRA Standard type: RESTRICTION
Intrinsic property driving the risk management measure: DERMAL SENSITIZATION AND SYSTEMIC TOXICITY
Amendment revised: 49
Existing creations deadline: February 10, 2022
New creations deadline: February 10, 2021
IFRA source overview · Individual IFRA Standards and supplementary documentation
Supplier certificates and private documents are separate evidence. Their availability does not determine whether this generic guide is shown. This is a dated local reference, not a live regulatory feed.
Creative ideas to explore
Creative directions, not tested formulas.Salt air and peel
With citrus and transparent woodsExplore a marine sketch with a bright citrus opening and a spare wood outline. Compare it with the marine reference alone, deciding whether the impression suggests open air, a mineral shoreline or a more abstract aquatic direction.
A flower by the sea
With rose and airy floral notesPlace the marine character beside a simple floral accord. Evaluate the flower reference and the aquatic variation together, noticing whether the contrast suggests dewy petals or pushes the composition towards a different watery scene.
Driftwood study
With a dry wood and musk directionSketch a shoreline idea around a restrained wood backdrop. Keep a matching wood-only reference and compare the marine contribution through the evaluation, choosing whether you prefer a noticeable aquatic accent or a subtler atmospheric contrast.








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