About this material
Cassiffix
Cassiffix is a synthetic aroma chemical developed by International Flavors & Fragrances (IFF), renowned for its vibrant, non-sulfurous blackcurrant (cassis) character.
It possesses impressive diffusion and potency, imparting a fresh, sparkling, green juiciness to fragrances.
It offers a remarkable bloom that fills the room and pairs exceptionally well with natural Cassis notes.
Cassis notes play a crucial role in perfumery and are commonly linked to ingredients that contain a sulfur atom.
The accidental discovery of Cassiffix occurred during IFF R&D’s pursuit of creating new cyclic ethers with oxabicyclooctane structures, initially expecting an amber scent derived from the campholenic backbone. Ultimately, the structure of Cassiffix revealed a distinct Cassis aroma.
Among the limited number of long-lasting Cassis ingredients available, Cassiffix stands out as a noteworthy exception to the typical top note nature of Cassis scents.
Cassiffix is versatile and can be used in various fragrance types, including:
Red berry and tropical accords
Sweet, vanilla, and powdery formulations, where it imparts a gourmand feel
Citrus compositions, enhancing their brightness
It is commonly utilised in fine fragrances, shampoos, shower gels and other personal care products and stands out as a unique, long-lasting cassis ingredient, offering a non-sulfurous alternative to traditional blackcurrant notes in perfumery.
Its ability to enhance and brighten various fragrance profiles makes it a valuable component in modern fragrance design and a worthy contender to the classic Cassis Base 345B
It blends well with Ambrettolide, Delta Damascone and Cashmeran
Scent character
Highlights from the material’s listed odour profile.
Note position
Top note · Heart note
Material character
A closer lookOdour strength
(Recommend smelling in a 10.00% solution or less)
Listed qualitative strength
Tenacity / substantivity
24 hour(s)
at 100.00%
Listed reference conditions
Supplied strength is 10% in DPG.
Fragrance development
Top note · Heart note
Illustrative note development · no measured evaporation data
Molecular identity
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 | 426218-78-2 · 139539-66-5 · 139539-67-6 |
|---|---|
| Odour description (decreasing) | Herbal, Fruity, Blackcurrant, Cassis, Green, Berry |
| Odour strength | Medium (Recommend smelling in a 10.00% solution or less) |
| Perfumery use | Effective from the smallest traces, through to 5%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 24 hour(s) at 100.00% |
| Solvent | DPG to give a 10% solution of Cassiffix |
| Physical state | Liquid |
| Synonyms | Cassiffix, Cassiffix IFF |
| Recorded name / preparation | 3-Cyclohexene-1-methanol, 3(or 4)-methyl-1-(2,2,3-trimethyl-3-cyclopenten-1-yl)-, acid-isomerized |
| Named active molecular formula | C₁₆H₂₆O |
| 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. |
Additional listed details
CAS No: 426218-78-2 / 139539-66-5 / 139539-67-6
Safety & handling
Hazard statements:
- H315 Causes skin irritation.
- H319 Causes serious eye irritation.
- H411 Toxic to aquatic life with long lasting effects.
Precautionary statements:
- P273 Avoid release to the environment.
- P280 Wear protective gloves/ eye protection/ face protection.
- P337+P313 If eye irritation persists: Get medical advice/ attention.
- P362+P364 Take off contaminated clothing and wash it before reuse.
- 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
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.
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.An aromatic opening
With bergamot and a peel accordExplore a citrus-and-herb opening that keeps the herbal character distinct. Compare a brighter peel variation with a gentler citrus reference, noting whether the imagined result feels like a garden cologne or a more culinary aromatic study.
Herb among petals
With geranium and a floral accordPlace the herbal material beside a familiar flower, using the flower alone as your reference. Compare the green and floral impressions through the evaluation and decide whether the herb should read clearly or remain an accent.
Dry aromatic woods
With cedar-like and sandalwood directionsBuild a simple herbal wood sketch and compare a dry wood option with a smoother one. Keep the aromatic material constant so the study reveals which setting gives your idea the clearest shape and most useful contrast.








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