Ethyl Cyclopentenolone (ECP)
This product is not a finished fragrance or flavor. It is a single aroma chemical that provides a specific scent character determined by its chemical structure. It is intended to be used only as a raw material for creating fragrance or flavor formulations, or for other research and development purposes.
Ethyl Cyclopentenolone (ECP) is a very powerful maple/caramellic, coffee‑roasted note with nutty, burnt sugar facets. A trace dose gives realism to gourmand tones, tobacco, woods, and roasted nut effects.
Fragrance Family: Gourmand – Caramel/Maple, Roasted
Top Notes: Caramellic, coffee roast
Heart Notes: Maple syrup, nutty, brown sugar
Base Notes: Toasted, woody, smoky sweet
Applications:
- Fine Fragrance: typical 0.005%, range 0.001–0.050%
- Body Care Products: typical 0.003%, range 0.0005–0.030%
- Home Care Products: typical 0.005%, range 0.001–0.030%
- Candles & Diffusers: typical 0.010%, range 0.002–0.030%
IFRA Restrictions:
Refer to the latest IFRA Standards for applicable categories.
Allergen Declaration (EU):
Not determined. Consult IFRA/SDS for allergen listing.
Storage: Store in a cool, dry place away from direct sunlight and heat sources. Keep container tightly closed.
Shelf Life: 24–36 months when stored properly
CAS Number: 21835-01-8
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| Test Name | Specification |
|---|---|
| Appearance | Light yellow crystals |
| Purity | 98-100% |
| Melting point (℃) | 39-43℃ |
| Infrared spectrum | Conforms to Structure |
| Other Names |
|---|
| coffee pentenolone |
| cyclopent-2-en-1-one, 3-ethyl-2-hydroxy- |
| 2-cyclopenten-1-one, 3-ethyl-2-hydroxy- |
| ECP 50% PG |
| ECP powder |
| ethyl cyclo pentenolene 50% in PG |
| 3-ethyl cyclopentan-1,2-dione |
| ethyl cyclopentenolone 50% PG |
| ethyl cyclopentenolone in 50% P.G. |
| ethyl cyclopentenolone pure |
| ethyl cyclotene |
| 3-ethyl-2-cyclopenten-2-ol-1-one |
| 3-ethyl-2-hydroxy-2-cyc1openten-1-one 50% in P.G. |
| 3-ethyl-2-hydroxy-2-cyclopenten-1-one |
| 3-ethyl-2-hydroxycyclopent-2-en-1-one |
| ethylcyclo-pentenolone |
| 3-ethylcyclopentan-1,2-dione |
| ethylcyclopentenolone |
| 2-hydroxy-3-ethyl-2-cyclopenten-1-one |
| 2-hydroxy-3-ethyl-2-cyclopentene-1-one |
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