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2-Pentyl-3-methyl-2-cyclopenten-1-one

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Company Name: Hebei Mojin Biotechnology Co., Ltd
Tel: +8613288715578
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Products Intro: Product Name:2-Pentyl-3-methyl-2-cyclopenten-1-one
CAS:1128-08-1
Purity:99% Package:25KG
Company Name: Hebei Yanxi Chemical Co., Ltd.
Tel: +8617531190177
Email: peter@yan-xi.com
Products Intro: Product Name:DIHYDRO JASMONE
CAS:1128-08-1
Purity:99% Package:1kg;1USD Remarks:Factory direct sales
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Products Intro: Product Name: 2-Pentyl-3-methyl-2-cyclopenten-1-one
CAS:1128-08-1
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Products Intro: Product Name:2-Pentyl-3-methyl-2-cyclopenten-1-one
CAS:1128-08-1
Purity:0.99 Package:5KG;1KG
Company Name: Hebei Guanlang Biotechnology Co., Ltd.
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Products Intro: Product Name:2-Pentyl-3-methyl-2-cyclopenten-1-one
CAS:1128-08-1
Purity:99% Package:1PCS;1USD

2-Pentyl-3-methyl-2-cyclopenten-1-one manufacturers

  • DIHYDRO JASMONE
  • DIHYDRO JASMONE pictures
  • $1.00 / 1kg
  • 2023-09-06
  • CAS:1128-08-1
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: 20tons
2-Pentyl-3-methyl-2-cyclopenten-1-one Basic information
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;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;2-N-AMYL-3-METHYL-2-CYCLOPENTEN-1-ONE
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 Structure
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
Specific Gravity0.914～0.916 (20/4℃)
color A colourless, slightly oily liquid with a floral-like odour
Odorat 100.00 %. fresh outdoor jasmin myrrh woody spice herbal
Odor Typefloral
JECFA Number1406
BRN 1906471
LogP3.25
CAS DataBase Reference1128-08-1(CAS DataBase Reference)
NIST Chemistry ReferenceDihydrojasmone(1128-08-1)
EPA Substance Registry System2-Cyclopenten-1-one, 3-methyl-2-pentyl- (1128-08-1)
Safety Information
WGK Germany 2
RTECS GY7302000
TSCA Yes
HS Code 29142990
toxicityThe 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).
MSDS Information
ProviderLanguage
2-Pentyl-3-methyl-2-cyclopenten-1-one English
SigmaAldrich English
ALFA English
2-Pentyl-3-methyl-2-cyclopenten-1-one Usage And Synthesis
Chemical Properties3-Methyl-2-(n-pentanyl)-2-cyclopenten-1-one has a fresh, fruity, jasmine odor with woody and herbal nuances.
Chemical Properties2-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.
OccurrenceHas apparently not been reported to occur in nature.
PreparationHexyl bromide plus levulinic ester yields a lactone, which is reacted with polyphosphoric acid or phosphorus pentoxide to produce hydrojasmone.
DefinitionChEBI: 3-methyl-2-pentylcyclopent-2-en-1-one is a cyclic ketone.
Taste threshold valuesTaste 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 materials6-Benzylaminopurine-->Jasmone-->n-Hendecane
Tag:2-Pentyl-3-methyl-2-cyclopenten-1-one(1128-08-1) Related Product Information
2-METHYL-2-CYCLOPENTEN-1-ONE 2-Pentyl-3-methyl-2-cyclopenten-1-one 2-Cyclopenten-1-one DIHYDROJASMONE LACTONE DIHYDROJASMONE Methyl dihydrojasmonate 3-methylcyclopent-2-en-1-one PROSTAGLANDIN B1 2-PENTYL-2-CYCLOPENTEN-1-ONE 1-ETHYL-2-METHYLCYCLOPENTENE 1-Methylcyclopentene 3-NONANONE Jasmone 1-BUTYLCYCLOPENTENE 1,2-DIMETHYLCYCLOPENTENE 1-ETHYL-1-CYCLOPENTENE 2,3-DIMETHYL-2-CYCLOPENTEN-1-ONE di-Calciphor