Florosa (G)
Fresh, Clean, Soft, Floral, Muguet, Sweet
About this material
Florosa is a synthetic fragrance ingredient developed by Givaudan, renowned for its creamy, soft floral scent reminiscent of lily of the valley (muguet).
It serves as a versatile general floraliser, enhancing floral character in various compositions.
It’s scent can be adapted in different directions, ranging from herbal to citrus notes.
It is commonly used in combination with muguet aldehydes such as Bourgeonal and Dupical.
Softer, creamier and more affordable than Florol by Firmenich.
Primarily used as a heart note, with some radiance towards the top.
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
24 hour(s)
at 100%
Listed reference conditions
Fragrance development
Heart note
Illustrative note development · no measured evaporation data
Molecular identity
C10H20O2
- Molecular weight
- 172.26 g/mol
- IUPAC name
- 4-methyl-2-(2-methylpropyl)oxan-4-ol
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)
- 1.9
- Exact mass (Da)
- 172.146329876
- Monoisotopic mass (Da)
- 172.146329876
- Topological polar surface area (Ų)
- 29.5
- Complexity
- 145
- Formal charge
- 0
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 2
- Heavy atoms
- 12
- Isotope atoms
- 0
- Atom stereocentres
- 2
- Bond stereocentres
- 0
- Covalent units
- 1
- SMILES
- CC(C)CC1CC(CCO1)(C)O
- InChI
- InChI=1S/C10H20O2/c1-8(2)6-9-7-10(3,11)4-5-12-9/h8-9,11H,4-7H2,1-3H3
- InChIKey
- YVSNOTITPICPTB-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 | 63500-71-0 |
|---|---|
| Odour description (decreasing) | Fresh, Clean, Soft, Floral, Muguet, Sweet |
| Odour strength | Medium |
| Perfumery use | Effective from 2% through to 10%Listed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 24 hour(s) at 100% |
| Solvent | None |
| Physical state | Liquid |
| Synonyms | Floral Pyranol, Floriffol, Florol, Florosol S, Pyranol, Flowerol, Florolan, Muguetol, Florosa Givaudan |
| Recorded name / preparation | 2-Isobutyl-4- methyltetrahydro-2H- pyran-4-ol |
| Molecular formula | C₁₀H₂₀O₂ |
Safety & handling
Hazard statements:
- H319 Causes serious eye irritation.
Precautionary statements:
- P264 Wash hands and other contacted skin thoroughly after handling.
- P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
- P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- P337+P313 If eye irritation persists: Get medical advice/attention.
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.







RJR (verified owner) –
Soft, airy and lily like
Anonymous (verified owner) –
Great product
rjrmagic (verified owner) –
Flurosa is a gorgeous rose fragrance that’s bright and elegant. It gives you that fresh “just bloomed” effect without the heaviness or old school powder,
it’s incredibly versatile and works well in both floral and woody blends. It also plays nicely with citrus, musks and ambers. If you want a rose note that’s smooth and modern, Flurosa is an absolute joy to work with.