About this material
Strawberry Furanone (F)
Strawberry Furanone otherwise known as Furaneol is a naturally occurring aroma compound that contributes a brown sugar, caramel-like, fruity and nutty aroma to various foods and beverages, including whiskey.
Although malodorous in its pure form and at high concentrations, emanating a rather rancid odour, this powerful material truly comes to life at concentrations up to 1%.
Strawberry Furanone offers an abundance of brown sugar, rich caramel and fruity nuances in dilution, is somewhat evocative of cotton candy at varying concentrations and exudes a very sweet strawberry aroma when heavily diluted.
While not a primary flavour component of traditional whiskey, it can be present in some whiskies, particularly those that have undergone certain fermentation or aging processes. It can also be intentionally added as a flavoring agent in non-alcoholic whiskey alternatives to mimic the taste of traditional whiskey
It is especially prominent in strawberries, pineapples, coffee, tomatoes, and other fruits and is a key component in strawberry, pineapple, and exotic fruit accords; frequently employed to create a jammy, sweetened fruit effect.
A powerful and indispensable ingredient that is marginally less fruity than Mesifuran and less maple/nutty than Sotolon.
Often used in trace amounts to add a sweet gourmand note.
Scent character
Highlights from the material’s listed odour profile.
Note position
Base note
Material character
A closer lookOdour strength
(recommend smelling in a 1% solution or less)
Listed qualitative strength
Tenacity / substantivity
320 hour(s)
at 20%
Listed reference conditions
Supplied strength is 10% in DPG.
Fragrance development
Base note
Illustrative note development · no measured evaporation data
Molecular identity
C6H8O3
- Molecular weight
- 128.13 g/mol
- IUPAC name
- 4-hydroxy-2,5-dimethylfuran-3-one
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)
- 0.7
- Exact mass (Da)
- 128.047344113
- Monoisotopic mass (Da)
- 128.047344113
- Topological polar surface area (Ų)
- 46.5
- Complexity
- 181
- Formal charge
- 0
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 3
- Rotatable bonds
- 0
- Heavy atoms
- 9
- Isotope atoms
- 0
- Atom stereocentres
- 1
- Bond stereocentres
- 0
- Covalent units
- 1
- SMILES
- CC1C(=O)C(=C(O1)C)O
- InChI
- InChI=1S/C6H8O3/c1-3-5(7)6(8)4(2)9-3/h3,8H,1-2H3
- InChIKey
- INAXVXBDKKUCGI-UHFFFAOYSA-N
Reference data checked 2026-10-27.
Structure of the named active material; product supplied at 10% in DPG.
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 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 | 3658-77-3 |
|---|---|
| Odour description (decreasing) | Powerful, Burnt Brown Sugar, Boozy, Sweet, Fruity, Caramel, Curry, Cotton Candy-like, Strawberry, Cooked Pineapple |
| Odour strength | High (recommend smelling in a 1% solution or less) |
| Perfumery use | Up to 0.25% of the fragrance concentrateListed perfumery guidance; this is not an IFRA limit. |
| Substantivity | 320 hour(s) at 20% |
| Solvent | DPG to give a 10% solution of Strawberry Furanone (Furaneol) |
| Physical state | Liquid |
| Synonyms | Strawberry Furanone, Pineapple Ketone, Furaneol (Firmenich) |
| Recorded name / preparation | 2,5-Dimethyl-4-hydroxy-3-furanone, 4_HYDROXY-2,5-DIMETHYL-3(2H)-FURANONE |
| Named active molecular formula | C₆H₈O₃ |
| 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. |
Safety & handling
Hazard statements:
- H302 Harmful if swallowed.
Precautionary statements:
- P264 Wash hands and other contacted skin thoroughly after handling.
- P270 Do no eat, drink or smoke when using this product.
- P301+P312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
- P330 Rinse mouth.
- P501 Dispose of contents/container to: approved disposal site.
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.
4-Hydroxy-2,5-dimethyl-3(2H)-furanone
RESTRICTION · CAS 3658-77-3
Category 4 — fine fragrance: 0.25% in the finished consumer product
All applicable specification, purity and other Standard conditions must also be met.
All IFRA categories and Standard conditions
| Category 1 | 0.045% in the finished consumer product |
|---|---|
| Category 2 | 0.014% in the finished consumer product |
| Category 3 | 0.27% in the finished consumer product |
| Category 4 | 0.25% in the finished consumer product |
| Category 5A | 0.064% in the finished consumer product |
| Category 5B | 0.064% in the finished consumer product |
| Category 5C | 0.064% in the finished consumer product |
| Category 5D | 0.021% in the finished consumer product |
| Category 6 | 0.15% in the finished consumer product |
| Category 7A | 0.52% in the finished consumer product |
| Category 7B | 0.52% in the finished consumer product |
| Category 8 | 0.021% in the finished consumer product |
| Category 9 | 0.49% in the finished consumer product |
| Category 10A | 0.49% in the finished consumer product |
| Category 10B | 1.8% in the finished consumer product |
| Category 11A | 0.021% in the finished consumer product |
| Category 11B | 0.021% in the finished consumer product |
| Category 12 | No numeric restriction in this overview cell; review the full Standard and other applicable requirements. |
CAS numbers (comment): The scope of this Standard includes, but is not limited to the CAS number(s) indicated above; any other CAS number(s) used to identify this fragrance ingredient should be considered in scope as well.
Contributions from other sources: None to consider
Contributions from other sources: notes: 4-Hydroxy-2,5-dimethyl-3(2H)-furanone has been found in natural extracts but only at trace levels.
Flavor use consideration: Due to the possible ingestion of small amounts of fragrance ingredients from their use in products in Categories 1 and 6, materials must not only comply with IFRA Standards but must also be recognized as safe as a flavoring ingredient as defined by the IOFI Code of Practice (www.iofi.org). For more details see chapter 1 of the Guidance for the use of IFRA Standards.
IFRA Standard type: RESTRICTION
Intrinsic property driving the risk management measure: DERMAL SENSITIZATION AND SYSTEMIC TOXICITY
Amendment revised: 49
Existing creations deadline: February 10, 2022
New creations deadline: February 10, 2021
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.Fruit with its peel
With citrus and leafy contrastsExplore a fruit sketch that includes a suggestion of peel or leaf. Compare those accents separately against the fruity reference, noticing whether they create a fresher impression or pull the idea away from the fruit you imagined.
An orchard in bloom
With rose or another familiar flowerPlace the fruity direction beside a simple floral accord. Keep a flower-only comparison and assess whether the fruit reads as a supporting accent, a juicy centre or a separate note that needs a different setting.
Fruit and cream
With vanilla and soft wood directionsSketch a more rounded fruit idea with vanilla as one variation and soft wood as another. Compare sweetness and texture before combining both, leaving room for the original fruity character to remain identifiable in the study.







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