2-(3-Methyl-2-butenyl)cyclopentanone

Overview IFRA Request a quote

  • Identifiers

    CAS number
    2520-60-7

    Molecular formula
    C10H16O

    SMILES
    CC(=CCC1CCCC1=O)C

  • Odor profile

    Fragrance
    Floral 75.18%
    Jasmin 53.45%
    Herbal 52.28%
    Fresh 50.11%
    Mint 47.43%
    Fruity 40.04%
    Woody 36.7%
    Sweet 34.98%
    Spicy 34.73%
    Citrus 34.48%

     

    Flavor
    Herbal 62.48%
    Fresh 53.04%
    Minty 47.57%
    Spicy 41.02%
    Spice 38.23%
    Mint 34.34%
    Green 33.2%
    Celery 29.22%
    Herb 29.13%
    Floral 27.17%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    2.4

    pKa est.
    8.64 (weak base)

    Molecular weight
    152.23 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    230°C

    Flash point

    • 78.24 ˚C est.
    • 74 to 76 °F (NTP, 1992)

    Solubility expt.

    • less than 1 mg/mL at 66 °F (NTP, 1992)

  • Synonyms

    • 2-(3-Methyl-2-butenyl)cyclopentanone
    • Pentenyl cyclopentanone
    • 2520-60-7
    • 2-(3-Methylbut-2-enyl)cyclopentan-1-one
    • 2-prenylcyclopentanone
    • Cyclopentanone, 2-(3-methyl-2-butenyl)-
    • EINECS 219-748-6
    • Cyclopentanone, 2-(3-methyl-2-buten-1-yl)-
    • UNII-N61U1R78XS
    • N61U1R78XS
    • AI3-36076
    • DTXSID0025579
    • 2-prenyl cyclopentanone
    • 2-(3-methylbut-2-en-1-yl)cyclopentanone
    • penten-1-yl cyclopentanone
    • DTXCID205579
    • SCHEMBL3507013
    • AKOS010639850
    • NS00027833
    • Q27284598
    • 219-748-6

  • Applications

    2-(3-Methyl-2-butenyl)cyclopentanone (CAS 2520-60-7) is primarily used as an aroma-related compound and fragrance intermediate in perfumery and consumer products. Typical applications include: as a fragrance ingredient or intermediate in perfumery and fragrance systems; as a fragrance component in cosmetics and personal care; as a fragrance additive in household products such as cleaners and detergents; as a synthesis-building block in industrial manufacturing for terpenoid aroma chemicals; and as a fragrance additive in polymers, coatings, and inks. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 913.65
    methanol 559.16
    isopropanol 983.0
    water 1.94
    ethyl acetate 848.63
    n-propanol 739.67
    acetone 868.51
    n-butanol 794.76
    acetonitrile 1121.59
    DMF 660.93
    toluene 580.17
    isobutanol 631.38
    1,4-dioxane 1307.24
    methyl acetate 760.99
    THF 1429.87
    2-butanone 877.27
    n-pentanol 519.53
    sec-butanol 787.33
    n-hexane 163.01
    ethylene glycol 126.54
    NMP 556.81
    cyclohexane 253.28
    DMSO 520.97
    n-butyl acetate 793.5
    n-octanol 414.4
    chloroform 3087.55
    n-propyl acetate 497.74
    acetic acid 674.01
    dichloromethane 2309.31
    cyclohexanone 1000.35
    propylene glycol 262.02
    isopropyl acetate 538.38
    DMAc 631.71
    2-ethoxyethanol 463.62
    isopentanol 734.63
    n-heptane 142.44
    ethyl formate 540.77
    1,2-dichloroethane 904.32
    n-hexanol 700.91
    2-methoxyethanol 697.22
    isobutyl acetate 360.51
    tetrachloromethane 500.46
    n-pentyl acetate 426.92
    transcutol 1942.92
    n-heptanol 376.02
    ethylbenzene 353.23
    MIBK 449.31
    2-propoxyethanol 747.24
    tert-butanol 986.81
    MTBE 756.58
    2-butoxyethanol 541.99
    propionic acid 585.35
    o-xylene 360.96
    formic acid 140.52
    diethyl ether 675.42
    m-xylene 393.82
    p-xylene 467.75
    chlorobenzene 687.3
    dimethyl carbonate 190.58
    n-octane 59.54
    formamide 246.88
    cyclopentanone 962.24
    2-pentanone 699.98
    anisole 582.61
    cyclopentyl methyl ether 605.76
    gamma-butyrolactone 979.66
    1-methoxy-2-propanol 632.0
    pyridine 1168.52
    3-pentanone 447.4
    furfural 944.59
    n-dodecane 54.36
    diethylene glycol 415.8
    diisopropyl ether 249.52
    tert-amyl alcohol 742.15
    acetylacetone 668.86
    n-hexadecane 61.27
    acetophenone 493.94
    methyl propionate 464.66
    isopentyl acetate 692.63
    trichloroethylene 1953.82
    n-nonanol 357.39
    cyclohexanol 693.02
    benzyl alcohol 470.73
    2-ethylhexanol 456.2
    isooctanol 311.17
    dipropyl ether 459.64
    1,2-dichlorobenzene 578.18
    ethyl lactate 213.31
    propylene carbonate 778.19
    n-methylformamide 347.34
    2-pentanol 591.18
    n-pentane 154.15
    1-propoxy-2-propanol 614.79
    1-methoxy-2-propyl acetate 584.77
    2-(2-methoxypropoxy) propanol 522.69
    mesitylene 247.74
    ε-caprolactone 877.95
    p-cymene 254.47
    epichlorohydrin 1054.65
    1,1,1-trichloroethane 1318.27
    2-aminoethanol 323.43
    morpholine-4-carbaldehyde 763.18
    sulfolane 752.65
    2,2,4-trimethylpentane 90.0
    2-methyltetrahydrofuran 1199.15
    n-hexyl acetate 677.32
    isooctane 82.7
    2-(2-butoxyethoxy)ethanol 698.11
    sec-butyl acetate 385.25
    tert-butyl acetate 518.28
    decalin 127.67
    glycerin 267.16
    diglyme 1100.35
    acrylic acid 430.32
    isopropyl myristate 285.17
    n-butyric acid 965.99
    acetyl acetate 533.2
    di(2-ethylhexyl) phthalate 262.55
    ethyl propionate 421.67
    nitromethane 860.95
    1,2-diethoxyethane 736.99
    benzonitrile 780.93
    trioctyl phosphate 183.05
    1-bromopropane 797.5
    gamma-valerolactone 1087.38
    n-decanol 265.28
    triethyl phosphate 222.81
    4-methyl-2-pentanol 357.52
    propionitrile 792.55
    vinylene carbonate 689.84
    1,1,2-trichlorotrifluoroethane 725.3
    DMS 400.21
    cumene 255.43
    2-octanol 290.7
    2-hexanone 527.06
    octyl acetate 335.47
    limonene 355.96
    1,2-dimethoxyethane 853.9
    ethyl orthosilicate 222.06
    tributyl phosphate 228.58
    diacetone alcohol 506.08
    N,N-dimethylaniline 365.63
    acrylonitrile 771.17
    aniline 618.23
    1,3-propanediol 485.49
    bromobenzene 770.86
    dibromomethane 1631.5
    1,1,2,2-tetrachloroethane 1528.22
    2-methyl-cyclohexyl acetate 423.45
    tetrabutyl urea 261.08
    diisobutyl methanol 275.03
    2-phenylethanol 481.29
    styrene 438.75
    dioctyl adipate 368.21
    dimethyl sulfate 243.05
    ethyl butyrate 525.8
    methyl lactate 233.49
    butyl lactate 334.92
    diethyl carbonate 368.79
    propanediol butyl ether 492.32
    triethyl orthoformate 346.6
    p-tert-butyltoluene 245.23
    methyl 4-tert-butylbenzoate 442.37
    morpholine 1272.24
    tert-butylamine 738.18
    n-dodecanol 203.11
    dimethoxymethane 428.63
    ethylene carbonate 581.34
    cyrene 366.81
    2-ethoxyethyl acetate 532.49
    2-ethylhexyl acetate 537.49
    1,2,4-trichlorobenzene 678.1
    4-methylpyridine 1104.92
    dibutyl ether 466.15
    2,6-dimethyl-4-heptanol 275.03
    DEF 541.94
    dimethyl isosorbide 720.19
    tetrachloroethylene 899.9
    eugenol 418.52
    triacetin 553.5
    span 80 507.38
    1,4-butanediol 200.8
    1,1-dichloroethane 1392.4
    2-methyl-1-pentanol 494.24
    methyl formate 270.81
    2-methyl-1-butanol 624.11
    n-decane 87.9
    butyronitrile 1012.36
    3,7-dimethyl-1-octanol 422.34
    1-chlorooctane 282.65
    1-chlorotetradecane 123.91
    n-nonane 84.38
    undecane 66.5
    tert-butylcyclohexane 124.83
    cyclooctane 86.54
    cyclopentanol 633.29
    tetrahydropyran 1269.59
    tert-amyl methyl ether 483.71
    2,5,8-trioxanonane 735.76
    1-hexene 470.58
    2-isopropoxyethanol 389.98
    2,2,2-trifluoroethanol 206.6
    methyl butyrate 575.0

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction