2-Pentyl-3-methyl-2-cyclopenten-1-one
- CAS No.
- 1128-08-1
- Chemical Name:
- 2-Pentyl-3-methyl-2-cyclopenten-1-one
- Synonyms
- FEMA 3763;DI JASMONE;DIHYDROJASMON;DIHYDROJASMONE;Jasmone, dihydro-;DIHYDROJASMONE(RG);Dihydrojasmone >Tetrahydroprethrone;DIHYDROJASMONE 98+%;Tetrahy-dropyrethrone
- CBNumber:
- CB4487865
- Molecular Formula:
- C11H18O
- Molecular Weight:
- 166.26
- MDL Number:
- MFCD00036480
- MOL File:
- 1128-08-1.mol
- MSDS File:
- SDS
| Boiling point | 120-121 °C12 mm Hg(lit.) |
|---|---|
| Density | 0.916 g/mL at 25 °C(lit.) |
| refractive index |
n |
| FEMA | 3763 | 3-METHYL-2-(N-PENTANYL)-2-CYCLOPENTEN-1-ONE |
| Flash point | 230 °F |
| storage temp. | Store at -20°C |
| solubility | DMSO:100.0(Max Conc. mg/mL);601.45(Max Conc. mM) |
| form | clear liquid |
| color | A colourless, slightly oily liquid with a floral-like odour |
| Specific Gravity | 0.914～0.916 (20/4℃) |
| Odor | at 100.00 %. fresh outdoor jasmin myrrh woody spice herbal |
| Odor Type | floral |
| JECFA Number | 1406 |
| BRN | 1906471 |
| LogP | 3.25 |
| CAS DataBase Reference | 1128-08-1(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | 2-PENTYL-3-METHYL-2-CYCLOPENTEN-1-ONE |
| EWG's Food Scores | 1 |
| FDA UNII | Y953R7PP90 |
| NIST Chemistry Reference | Dihydrojasmone(1128-08-1) |
| EPA Substance Registry System | 2-Cyclopenten-1-one, 3-methyl-2-pentyl- (1128-08-1) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H303 | |||||||||
| Precautionary statements | P270-P301+P312-P403-P501c | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | GY7302000 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29142990 | |||||||||
| Toxicity | The acute oral LD50 in rats was reported as 2.5 g/kg (1.79-3.50 g/kg) (Keating, 1972). The acute dermal LD50 value in rabbits was reported as 5 g/kg (Keating, 1972). | |||||||||
| NFPA 704 |
|
2-Pentyl-3-methyl-2-cyclopenten-1-one price More Price(14)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W376302 | Dihydrojasmone ≥98%, stabilized, FG | 1128-08-1 | sample-k | $59.8 | 2024-03-01 | Buy |
| Sigma-Aldrich | W376302 | Dihydrojasmone ≥98%, stabilized, FG | 1128-08-1 | 100g | $77.7 | 2024-03-01 | Buy |
| Sigma-Aldrich | W376302 | Dihydrojasmone ≥98%, stabilized, FG | 1128-08-1 | 1kg | $246 | 2024-03-01 | Buy |
| Sigma-Aldrich | W376302 | Dihydrojasmone ≥98%, stabilized, FG | 1128-08-1 | 5kg | $1120 | 2024-03-01 | Buy |
| TCI Chemical | D1440 | Dihydrojasmone >98.0%(GC) | 1128-08-1 | 25mL | $27 | 2024-03-01 | Buy |
2-Pentyl-3-methyl-2-cyclopenten-1-one Chemical Properties,Uses,Production
Aroma
Intensely floral and fresh odor with fruity and somewhat Myrrh-like undertone. 2-Pentyl-3-methyl-2-cyclopenten-1-one is often described as the "closest to ci&Jasmone in odor". In proper dilution it has a pleasant, sweet, herbaceous-floral taste which is easily twisted towards a fruity note in presence of traces of fruity chemicals. It has an excellent softening effect upon the overly "chemical" fruit materials.
Uses in Perfume
2-Pentyl-3-methyl-2-cyclopenten-1-one is widely used in perfume compositions, not only for artificial Jasmin and Bergamot, but in general as a floralizer in the more fruityfloral fragrance types: Ylang, Lily, Tuberose, Magnolia, etc. and it introduces a pleasant undertone in Citrus type fragrances.
Chemical Properties
2-Pentyl-3-methyl-2-cyclopenten-1-one is a colorless,
slightly viscous liquid with a typical jasmine odor, resembling that of the naturally
occurring (Z)-jasmone. Dihydrojasmone is produced by an acid-catalyzed
rearrangement of 4-methyl-??-decalactone, which is readily obtained by
radical addition of 2-octanol to acrylic acid.
Dihydrojasmone is used in perfumery in jasmine bases and, more generally, in
floral and fruity fragrances.
Chemical Properties
3-Methyl-2-(n-pentanyl)-2-cyclopenten-1-one has a fresh, fruity, jasmine odor with woody and herbal nuances.
Occurrence
Has apparently not been reported to occur in nature.
Preparation
Hexyl bromide plus levulinic ester yields a lactone, which is reacted with polyphosphoric acid or phosphorus pentoxide to produce hydrojasmone.
Definition
ChEBI: 3-methyl-2-pentylcyclopent-2-en-1-one is a cyclic ketone.
Taste threshold values
Taste characteristics at 10 ppm: sweet, floral, green, herbal with a citrus nuance.
Synthesis Reference(s)
Canadian Journal of Chemistry, 56, p. 2301, 1978 DOI: 10.1139/v78-379
Journal of the American Chemical Society, 92, p. 7428, 1970 DOI: 10.1021/ja00728a029
2-Pentyl-3-methyl-2-cyclopenten-1-one Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Weibang Biotechnology Co., Ltd | +8615531157085 | abby@weibangbio.com | China | 8806 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-81148696 +86-15536356810 | 1022@dideu.com | China | 3882 | 58 |
| Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12832 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531153977 | allison@yan-xi.com | China | 5857 | 58 |
| Hebei Kingfiner Technology Development Co.Ltd | +86-15532196582 +86-15373005021 | lisa@kingfinertech.com | China | 3009 | 58 |
| JINING XINHE CHEMICAL CO., LTD | +8615318402391 | sales@xinhepharma.com | China | 809 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29880 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Shanghai Longyu Biotechnology Co., Ltd. | +8619521488211 | info@longyupharma.com | China | 2557 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39894 | 58 |
View Lastest Price from 2-Pentyl-3-methyl-2-cyclopenten-1-one manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-11-19 | Dihydrojasmone
1128-08-1
|
US $34.00 / mg | 99.74% | 10g | TargetMol Chemicals Inc. | ||
 |
2024-11-04 | 2-Pentyl-3-methyl-2-cyclopenten-1-one
1128-08-1
|
US $1.00 / kg | 1kg | 99% | 10 mt | Hebei Weibang Biotechnology Co., Ltd | |
 |
2024-10-25 | DIHYDRO JASMONE
1128-08-1
|
US $1.00 / kg | 1kg | 99% | 20tons | Hebei Yanxi Chemical Co., Ltd. |
-
- Dihydrojasmone
1128-08-1
- US $34.00 / mg
- 99.74%
- TargetMol Chemicals Inc.
-
- 2-Pentyl-3-methyl-2-cyclopenten-1-one
1128-08-1
- US $1.00 / kg
- 99%
- Hebei Weibang Biotechnology Co., Ltd
-
- DIHYDRO JASMONE
1128-08-1
- US $1.00 / kg
- 99%
- Hebei Yanxi Chemical Co., Ltd.