1-(Cyclopent-1-en-1-yl)prop-2-en-1-one

Overview IFRA Request a quote

  • Identifiers

    CAS number
    62672-81-5

    Molecular formula
    C8H10O

    SMILES
    C=CC(=O)C1=CCCC1

  • Odor profile

    Fragrance
    Green 55.09%
    Fruity 48.73%
    Caramellic 37.52%
    Metallic 35.98%
    Herbal 32.88%
    Nutty 32.08%
    Sweet 31.18%
    Spicy 31.1%
    Burnt 31.01%
    Pungent 30.4%

     

    Flavor
    Nutty 25.67%
    Maple syrup 22.36%
    Cinnamon 22.18%
    Basil 22.04%
    Taco 21.83%
    Fenugreek 21.7%
    Bread crust 21.4%
    Nitrile 21.08%
    Licorice 21.07%
    Urine 20.68%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.9

    pKa est.
    7.78 (neutral)

    Molecular weight
    122.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    196°C

    Flash point

    • 58.65 ˚C est.

  • Synonyms

    • 1-(Cyclopent-1-en-1-yl)prop-2-en-1-one
    • 62672-81-5
    • 1-(cyclopenten-1-yl)prop-2-en-1-one
    • DTXSID80498966
    • cyclopentenyl vinyl ketone
    • DTXCID80449776
    • 1-(1-cyclopentenyl)-prop-2-en-1-one
    • 1-(1-cyclopenten-1-yl)-2-propen-1-one
    • EN300-215860

  • Applications

    1-(Cyclopent-1-en-1-yl)prop-2-en-1-one (CAS 62672-81-5) is typically used as an odorant component in fragrance formulations and as a reactive building block in the synthesis of related aroma chemicals. In cosmetics and personal care, it may be employed as a fragrance ingredient or scent-enhancing additive. In the plastics and coatings industries, it can function as a functional monomer or intermediate for polymer formulations. It may also appear in cleaning and household products as a fragrance contributor or odorant additive. Use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1075.83
    methanol 1551.5
    isopropanol 836.18
    water 6.05
    ethyl acetate 1080.18
    n-propanol 887.52
    acetone 1726.91
    n-butanol 891.95
    acetonitrile 1429.67
    DMF 1936.5
    toluene 680.7
    isobutanol 728.93
    1,4-dioxane 1704.46
    methyl acetate 1207.79
    THF 2117.26
    2-butanone 1311.14
    n-pentanol 739.65
    sec-butanol 767.11
    n-hexane 299.17
    ethylene glycol 246.62
    NMP 1995.11
    cyclohexane 282.74
    DMSO 1594.14
    n-butyl acetate 1066.99
    n-octanol 659.67
    chloroform 3148.92
    n-propyl acetate 1042.25
    acetic acid 1011.7
    dichloromethane 3055.43
    cyclohexanone 1801.03
    propylene glycol 276.87
    isopropyl acetate 713.8
    DMAc 1116.11
    2-ethoxyethanol 900.96
    isopentanol 781.74
    n-heptane 151.44
    ethyl formate 859.81
    1,2-dichloroethane 1717.14
    n-hexanol 769.38
    2-methoxyethanol 1170.79
    isobutyl acetate 707.35
    tetrachloromethane 588.97
    n-pentyl acetate 773.77
    transcutol 3059.75
    n-heptanol 484.74
    ethylbenzene 511.77
    MIBK 753.38
    2-propoxyethanol 1118.41
    tert-butanol 863.68
    MTBE 879.15
    2-butoxyethanol 751.85
    propionic acid 931.67
    o-xylene 445.37
    formic acid 346.39
    diethyl ether 999.46
    m-xylene 524.38
    p-xylene 625.3
    chlorobenzene 1151.69
    dimethyl carbonate 475.73
    n-octane 100.32
    formamide 490.48
    cyclopentanone 2174.02
    2-pentanone 1096.15
    anisole 903.52
    cyclopentyl methyl ether 1153.91
    gamma-butyrolactone 2243.67
    1-methoxy-2-propanol 933.21
    pyridine 1505.56
    3-pentanone 773.32
    furfural 1714.12
    n-dodecane 89.74
    diethylene glycol 762.63
    diisopropyl ether 412.31
    tert-amyl alcohol 779.31
    acetylacetone 1108.6
    n-hexadecane 101.44
    acetophenone 820.87
    methyl propionate 833.34
    isopentyl acetate 882.02
    trichloroethylene 3040.12
    n-nonanol 521.04
    cyclohexanol 781.59
    benzyl alcohol 651.81
    2-ethylhexanol 509.2
    isooctanol 422.34
    dipropyl ether 582.07
    1,2-dichlorobenzene 1030.03
    ethyl lactate 422.87
    propylene carbonate 1287.53
    n-methylformamide 1069.68
    2-pentanol 664.62
    n-pentane 228.91
    1-propoxy-2-propanol 767.41
    1-methoxy-2-propyl acetate 723.56
    2-(2-methoxypropoxy) propanol 653.18
    mesitylene 398.19
    ε-caprolactone 1566.68
    p-cymene 287.11
    epichlorohydrin 2152.2
    1,1,1-trichloroethane 1760.74
    2-aminoethanol 446.95
    morpholine-4-carbaldehyde 1662.26
    sulfolane 2275.51
    2,2,4-trimethylpentane 133.26
    2-methyltetrahydrofuran 1715.85
    n-hexyl acetate 1187.33
    isooctane 136.29
    2-(2-butoxyethoxy)ethanol 982.81
    sec-butyl acetate 666.7
    tert-butyl acetate 790.17
    decalin 199.66
    glycerin 374.32
    diglyme 1671.56
    acrylic acid 909.96
    isopropyl myristate 427.88
    n-butyric acid 1093.36
    acetyl acetate 643.93
    di(2-ethylhexyl) phthalate 327.38
    ethyl propionate 760.2
    nitromethane 1961.64
    1,2-diethoxyethane 1107.94
    benzonitrile 1155.45
    trioctyl phosphate 275.08
    1-bromopropane 1162.87
    gamma-valerolactone 2045.44
    n-decanol 379.58
    triethyl phosphate 323.75
    4-methyl-2-pentanol 422.23
    propionitrile 1115.09
    vinylene carbonate 1180.21
    1,1,2-trichlorotrifluoroethane 1123.71
    DMS 790.45
    cumene 377.53
    2-octanol 433.41
    2-hexanone 1010.82
    octyl acetate 543.16
    limonene 385.66
    1,2-dimethoxyethane 1448.94
    ethyl orthosilicate 320.72
    tributyl phosphate 340.15
    diacetone alcohol 738.37
    N,N-dimethylaniline 578.0
    acrylonitrile 1354.16
    aniline 714.86
    1,3-propanediol 632.87
    bromobenzene 1316.77
    dibromomethane 2043.31
    1,1,2,2-tetrachloroethane 2116.49
    2-methyl-cyclohexyl acetate 526.88
    tetrabutyl urea 424.59
    diisobutyl methanol 320.0
    2-phenylethanol 617.15
    styrene 676.25
    dioctyl adipate 500.16
    dimethyl sulfate 709.08
    ethyl butyrate 722.8
    methyl lactate 446.02
    butyl lactate 531.92
    diethyl carbonate 497.82
    propanediol butyl ether 818.87
    triethyl orthoformate 443.37
    p-tert-butyltoluene 271.03
    methyl 4-tert-butylbenzoate 664.57
    morpholine 1707.95
    tert-butylamine 633.8
    n-dodecanol 289.38
    dimethoxymethane 1055.27
    ethylene carbonate 955.24
    cyrene 549.16
    2-ethoxyethyl acetate 823.38
    2-ethylhexyl acetate 677.17
    1,2,4-trichlorobenzene 1124.1
    4-methylpyridine 1581.49
    dibutyl ether 776.43
    2,6-dimethyl-4-heptanol 320.0
    DEF 1171.52
    dimethyl isosorbide 985.15
    tetrachloroethylene 1506.23
    eugenol 675.29
    triacetin 788.19
    span 80 591.77
    1,4-butanediol 383.26
    1,1-dichloroethane 1920.99
    2-methyl-1-pentanol 697.23
    methyl formate 919.3
    2-methyl-1-butanol 751.33
    n-decane 143.6
    butyronitrile 1239.36
    3,7-dimethyl-1-octanol 517.1
    1-chlorooctane 512.34
    1-chlorotetradecane 206.4
    n-nonane 152.46
    undecane 110.36
    tert-butylcyclohexane 203.86
    cyclooctane 121.1
    cyclopentanol 880.11
    tetrahydropyran 1578.98
    tert-amyl methyl ether 630.37
    2,5,8-trioxanonane 1003.3
    1-hexene 746.4
    2-isopropoxyethanol 711.86
    2,2,2-trifluoroethanol 383.98
    methyl butyrate 1055.7

    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