About this material
Scent character
Highlights from the material’s listed odour profile.
Note position
Top note · Heart note
Material character
A closer lookOdour strength
Listed qualitative strength
Tenacity / substantivity
>6 hour(s) at 100%
Listed reference conditions
Fragrance development
Top note · Heart note
Illustrative note development · no measured evaporation data
Molecular identity
C10H16O3
- Molecular weight
- 184.23 g/mol
- IUPAC name
- [(4Z)-cyclooct-4-en-1-yl] methyl carbonate
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)
- 2.8
- Exact mass (Da)
- 184.109944368
- Monoisotopic mass (Da)
- 184.109944368
- Topological polar surface area (Ų)
- 35.5
- Complexity
- 187
- Formal charge
- 0
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 3
- Heavy atoms
- 13
- Isotope atoms
- 0
- Atom stereocentres
- 1
- Bond stereocentres
- 1
- Covalent units
- 1
- SMILES
- COC(=O)OC1CCC/C=C\CC1
- InChI
- InChI=1S/C10H16O3/c1-12-10(11)13-9-7-5-3-2-4-6-8-9/h2-3,9H,4-8H2,1H3/b3-2-
- InChIKey
- LDHHCYCOENSXIM-IHWYPQMZSA-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 | 87731-18-8 |
|---|---|
| Odour description (decreasing) | Floral, Violet-Leaf, Green, Tagette (Marigold) with Fruity Banana Undertones. |
| Odour strength | High |
| Perfumery use | Effective from small traces through to 2%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | >6 hour(s) at 100% |
| Solvent | None |
| Physical state | Liquid |
| Synonyms | Violet Methyl Carbonate, Violiff IFF |
| Recorded name / preparation | cyclooct-4-en-1-yl methyl carbonate |
| Molecular formula | C₁₀H₁₆O₃ |
| Supplier IFRA information | Catalogue copy mentions IFRA information, but no reviewed supplier-document record is available in this profile. No certificate, use limit or compliance status is confirmed. |
Safety & handling
Contains: 87731-18-8 cyclooct-4-en-1-yl methyl carbonate 10191-41-0 Tocopherol
Hazard statements:
- H317 May cause an allergic skin reaction.
Precautionary statements:
- P261 Avoid breathing mist or vapours.
- P272 Contaminated work clothing should not be allowed out of the workplace.
- P280 Wear protective gloves.
- P302+P352 IF ON SKIN: Wash with plenty of water.
- P333+P313 If skin irritation or rash occurs: Get medical advice/ attention.
- 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.Petals and peel
With bergamot and a light citrus ideaExplore a brighter version of the floral character using a simple citrus counterpoint. Compare it with the unchanged flower accord and note whether the citrus frames the bloom or becomes the main subject of the sketch.
Stem and blossom
With geranium and leafy notesSketch the flower with a greener setting, keeping leaf and blossom as distinct ideas. Compare a clean floral reference with the greener version to decide how much of the imagined stem and garden belongs in the composition.
Petals over wood
With a transparent wood directionPlace the floral material against a spare wood backdrop and follow the balance through the evaluation. Try a softer wood variation separately, then choose whether your flower needs an open, airy setting or a smoother, more enveloping frame.







Somer (verified owner) –
On point no frills wow
Walter White (verified owner) –
Perfectly suited for my latest project, will be back for more as this is such an incredible material. Also cannot fault the quality of the products and the speed of delivery from Perfume Extract!