- Dihydrojasmone
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- $29.00 / 1g
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2026-05-11
- CAS:1128-08-1
- Min. Order:
- Purity: 99.75%
- Supply Ability: 10g
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| Product Name: | 2-Pentyl-3-methyl-2-cyclopenten-1-one | | Synonyms: | 3-METHYL-2-PENTYL-2-CYCLOPENTEN-1-ONE;3-METHYL-2-PENTYL-2-CYCLOPENTENONE;DihydrojasMone (mixture of isomers);3-Methyl-2-(n-pentanyl)-2-cyclopenten-1-one;3-methyl-2-pentyl-2-cyclopenten-1-on;3-methyl-2-pentylcyclopent;Jasmone, dihydro-;Tetrahy-dropyrethrone | | CAS: | 1128-08-1 | | MF: | C11H18O | | MW: | 166.26 | | EINECS: | 214-434-5 | | Product Categories: | | | Mol File: | 1128-08-1.mol |  |
| | 2-Pentyl-3-methyl-2-cyclopenten-1-one Chemical Properties |
| Boiling point | 120-121 °C12 mm Hg(lit.) | | density | 0.916 g/mL at 25 °C(lit.) | | FEMA | 3763 | 3-METHYL-2-(N-PENTANYL)-2-CYCLOPENTEN-1-ONE | | refractive index | n20/D 1.479(lit.) | | Fp | 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 | | biological source | synthetic | | JECFA Number | 1406 | | BRN | 1906471 | | Major Application | flavors and fragrances | | Cosmetics Ingredients Functions | PERFUMING | | InChI | 1S/C11H18O/c1-3-4-5-6-10-9(2)7-8-11(10)12/h3-8H2,1-2H3 | | InChIKey | YCIXWYOBMVNGTB-UHFFFAOYSA-N | | SMILES | CCCCCC1=C(C)CCC1=O | | LogP | 3.25 | | CAS DataBase Reference | 1128-08-1(CAS DataBase Reference) | | NIST Chemistry Reference | Dihydrojasmone(1128-08-1) | | EPA Substance Registry System | 2-Cyclopenten-1-one, 3-methyl-2-pentyl- (1128-08-1) |
| WGK Germany | 2 | | RTECS | GY7302000 | | TSCA | TSCA listed | | HS Code | 29142990 | | Storage Class | 10 - Combustible liquids | | 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). |
| | 2-Pentyl-3-methyl-2-cyclopenten-1-one Usage And Synthesis |
| 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 | 3-Methyl-2-(n-pentanyl)-2-cyclopenten-1-one has a fresh, fruity, jasmine odor with woody and herbal nuances. | | 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. | | Occurrence | Has apparently not been reported to occur in nature. | | Uses | flavors and fragrances | | 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 |
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