About this material
Precyclemone B TOCO by IFF is a distinguished ozonic-aldehydic molecule crafted for contemporary fine fragrance architecture.
Stabilised with tocopherol for enhanced oxidative resilience, this advanced format ensures superior performance, longevity, and formulation stability in premium compositions.
Celebrated by perfumers for its crystalline diffusion and refined freshness, Precyclemone B TOCO delivers an unmistakable impression of open air, sunlit citrus peel, and soft floral transparency.
It introduces a polished, luminous lift to top accords while extending a clean, airy signature deep into the drydown.
An essential building block in modern aquatic, citrus, and white floral fragrances, it imparts sophistication without sharpness — freshness elevated to couture standard.
Precyclemone B TOCO is used as a freshness amplifier and radiance enhancer across fine fragrance, body care, and luxury functional perfumery.
Elevates citrus and hesperidic top notes
Enhances marine and ozonic accords
Adds lift and space to white florals
Polishes aldehydic constructions
Modernises classic chypre and fougère structures
Typical usage ranges from trace amounts for brilliance to higher levels for signature freshness impact.
Precyclemone B TOCO represents the evolution of clean sophistication — a molecule that captures the sensation of expansive horizons and immaculate air. Discerning perfumers rely on its precision, clarity, and elegant diffusion to create fragrances that feel effortlessly modern yet timelessly refined.
Heritage of Use in Iconic Fresh Fragrances
Precyclemone B has played a discreet yet defining role in shaping some of the most recognisable fresh fragrances of the modern era. While proprietary formulae remain confidential, this molecule is widely acknowledged in perfumery literature as a key contributor to the luminous marine-ozonic signatures that defined an entire generation of perfumery.
Men’s Fragrance Icons
Davidoff Cool Water for Men
The fragrance that established the aquatic fougère genre. Precyclemone B supports its expansive marine freshness and clean, open-horizon character.
Calvin Klein Eternity for Men
A benchmark of crisp citrus clarity and effortless outdoor refinement, elevated by radiant aldehydic lift.
Paco Rabanne XS for Men
Celebrated for its bold, vibrant citrus-green opening, enhanced by diffusive ozone transparency.
Escape for Men by Calvin Klein
A vivid aromatic expression of freedom, where fresh air brightness and fluid diffusion define the top accord.
Herrera for Men by Carolina Herrera
A refined masculine signature blending green facets with polished freshness.
Luxury & Lifestyle Creations
Dolce Vita by Dior
Within its sophisticated floral structure lies an airy radiance — a luminous freshness that adds space and elegance.
Floral “Flore” Interpretations
Across multiple maisons, fresh floral compositions utilise this molecule for its crystalline ozone-fresh lift and clean diffusion.
Ô de Lancôme for Men
A timeless citrus-fresh expression where aquatic brightness enhances classical cologne structure.
Additional References in Fresh Perfumery
The Precyclemone B profile is also cited in relation to creations such as:
Horizon
Duende
Select fresh compositions by Creed
Fresh-oriented releases from Faconnable
A Discreet Architect of Freshness
Precyclemone B does not dominate — it refines. It amplifies the sensation of open air, extending citrus brightness and polishing green and marine accords with seamless diffusion.
Its presence in these iconic compositions underscores its status as a foundational molecule of modern fresh perfumery — a silent architect behind some of the industry’s most enduring signatures.
Scent character
Highlights from the material’s listed odour profile.
Note position
Top note · Base note
Material character
A closer lookOdour strength
Listed qualitative strength
Tenacity / substantivity
100 hour(s)
at 100%
Listed reference conditions
Fragrance development
Top note · Base note
Illustrative note development · no measured evaporation data
Molecular identity
C14H22O
- Molecular weight
- 206.32 g/mol
- IUPAC name
- 1-methyl-4-(4-methylpent-3-enyl)cyclohex-3-ene-1-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)
- 3.3
- Exact mass (Da)
- 206.167065321
- Monoisotopic mass (Da)
- 206.167065321
- Topological polar surface area (Ų)
- 17.1
- Complexity
- 282
- Formal charge
- 0
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 4
- Heavy atoms
- 15
- Isotope atoms
- 0
- Atom stereocentres
- 1
- Bond stereocentres
- 0
- Covalent units
- 1
- SMILES
- CC(=CCCC1=CCC(CC1)(C)C=O)C
- InChI
- InChI=1S/C14H22O/c1-12(2)5-4-6-13-7-9-14(3,11-15)10-8-13/h5,7,11H,4,6,8-10H2,1-3H3
- InChIKey
- VUIWFNRBSGUSIN-UHFFFAOYSA-N
Reference data checked 2026-10-27.
This molecular reference matches the catalogue’s recorded CAS and formula. It does not confirm the supplied grade, purity, stereochemistry, isomer proportions, composition, impurities or unlisted constituents.
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-material reference based on recorded CAS numbers. A CAS match identifies a reference entry; it does not verify the supplied grade, composition, purity or finished-product compliance. Naturals, bases and mixtures require composition review.
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 | 52475-86-2 |
|---|---|
| Odour description (decreasing) | Ozonic, Aldehydic, Citrus Zest, Clean Linen, Grapefruit, Soft Green Floral (Muguet nuance) |
| Odour strength | Medium |
| Perfumery use | Effective from the smallest traces, through to 10%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 100 hour(s) at 100% |
| Solvent | None |
| Physical state | Liquid |
| Synonyms | Precyclemone B IFF, Stabilised Precyclemone B, PCB, Myrcenol, Marinal, Aldemone, Myrmac Aldehyde |
| Recorded name / preparation | Reaction mass of 1-methyl-3-(4-methyl-3-pentenyl)cyclohex-3-ene-1-carbaldehyde and 1-methyl-4-(4-methyl-3-pentenyl)cyclohex-3-ene-1- |
| Molecular formula | C₁₄H₂₂O |
Safety & handling
Contains: TOCOPHEROL (10191-41-0). May produce an allergic reaction.
Hazard statements:
- H410 Very toxic to aquatic life with long lasting effects.
Precautionary statements:
- P273 Avoid release to the environment.
- P391 Collect spillage.
- P501 Dispose of contents/ container to an approved waste disposal plant.
Professional/Industrial use only.
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
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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-material reference based on recorded CAS numbers. A CAS match identifies a reference entry; it does not verify the supplied grade, composition, purity or finished-product compliance. Naturals, bases and mixtures require composition review.
Source: 51st Amendment overview, held source checked 2026-10-21. Bundle 2026-10-27. Individual Standards prevail over the overview.
No direct IFRA overview entry matched the recorded CAS in this held dataset. This does not mean unrestricted use, absence of relevant Standards or compliance. Constituent restrictions may still apply.
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.Polished petals
With rose and soft floral notesExplore an aldehydic floral silhouette around a simple rose accord. Compare the opening and later impression with an unchanged floral reference; decide whether the effect feels airy, waxy or abstract before adding further complexity.
Citrus in white
With bergamot and a musk directionBuild a study around citrus brightness and a restrained musk backdrop. Let the aldehydic material be the changing variable, then note whether it supports the peel impression or takes the sketch towards a more abstract clean accord.
A softer frame
With sandalwood and powdery notesSet the listed aldehydic character against a soft wood or powder direction. Compare the balance through the evaluation rather than judging only the first impression, and keep any successful version simple enough to understand what changed.







Luiza Every (verified owner) –
Lovely product