Precyclemone B TOCO (I)
A Modern Icon of Radiant Freshness
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.
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Elevates citrus and hesperidic top notes
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Enhances marine and ozonic accords
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Adds lift and space to white florals
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Polishes aldehydic constructions
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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
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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.
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Calvin Klein Eternity for Men
A benchmark of crisp citrus clarity and effortless outdoor refinement, elevated by radiant aldehydic lift.
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Paco Rabanne XS for Men
Celebrated for its bold, vibrant citrus-green opening, enhanced by diffusive ozone transparency.
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Escape for Men by Calvin Klein
A vivid aromatic expression of freedom, where fresh air brightness and fluid diffusion define the top accord.
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Herrera for Men by Carolina Herrera
A refined masculine signature blending green facets with polished freshness.
Luxury & Lifestyle Creations
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Dolce Vita by Dior
Within its sophisticated floral structure lies an airy radiance — a luminous freshness that adds space and elegance.
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Floral “Flore” Interpretations
Across multiple maisons, fresh floral compositions utilise this molecule for its crystalline ozone-fresh lift and clean diffusion.
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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:
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Horizon
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Duende
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Select fresh compositions by Creed
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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.
Product specification.
CAS No: 52475-86-2
Odour Description (decreasing): Ozonic, Aldehydic, Citrus Zest, Clean Linen, Grapefruit, Soft Green Floral (Muguet nuance)
Odour Strength: Medium
Usage: Effective from the smallest traces, through to 10%
Substantivity: 100 hour(s) at 100%
Solvent: None
Synonyms: Precyclemone B IFF, Stabilised Precyclemone B, PCB, Myrcenol, Marinal, Aldemone, Myrmac Aldehyde
Name: 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
IFRA:
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.





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