3-Isopropyl-2-cyclopenten-1-one

Overview IFRA Request a quote

  • Identifiers

    CAS number
    1619-28-9

    Molecular formula
    C8H12O

    SMILES
    CC(C)C1=CC(=O)CC1

    Safety labels

  • Odor profile

    Fragrance
    Mint 67.8%
    Herbal 53.52%
    Woody 46.6%
    Spicy 45.56%
    Camphoreous 40.75%
    Ketonic 39.29%
    Tobacco 33.0%
    Caramellic 31.14%
    Fruity 28.35%
    Phenolic 28.32%

     

    Flavor
    Herbal 60.16%
    Spice 46.83%
    Woody 44.73%
    Minty 41.79%
    Spicy 36.1%
    Celery 28.83%
    Mint 27.47%
    Peppermint 24.27%
    Spearmint 23.47%
    Caraway 23.47%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.2

    pKa est.
    8.41 (weak base)

    Molecular weight
    124.18 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    201°C

    Flash point

    • 58.77 ˚C est.

  • Synonyms

    • 3-Isopropyl-2-cyclopenten-1-one
    • 3-propan-2-ylcyclopent-2-en-1-one
    • 1619-28-9
    • 3-(propan-2-yl)cyclopent-2-en-1-one
    • 3-isopropylcyclopentenone
    • SCHEMBL1665112
    • 3-Isopropylcyclopent-2-en-1-one
    • 3-Isopropyl-2-cyclopenten-1-one #
    • AKOS014508702
    • 2-Cyclopenten-1-one, 3-(1-methylethyl)-
    • 1619-28-9

  • Applications

    3-Isopropyl-2-cyclopenten-1-one (CAS 1619-28-9) is primarily used as an odor-active compound and fragrance intermediate in the aroma industry, serving as a building block for a range of fragrance formulations. In cosmetics and personal care, it may be used as a fragrance ingredient in products such as moisturizers, perfumes, and hair and skin care formulations, subject to formulation limits and regulatory requirements. In household products, it is included as a scent component to enhance the aroma of cleaners and detergents. In industrial manufacturing, it is often employed as a precursor or intermediate for the synthesis of aroma compounds or related derivatives.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 445.92
    methanol 446.5
    isopropanol 376.47
    water 1.71
    ethyl acetate 465.79
    n-propanol 361.96
    acetone 423.62
    n-butanol 306.7
    acetonitrile 435.06
    DMF 499.57
    toluene 254.47
    isobutanol 244.25
    1,4-dioxane 728.03
    methyl acetate 427.94
    THF 605.46
    2-butanone 393.94
    n-pentanol 187.98
    sec-butanol 271.23
    n-hexane 44.7
    ethylene glycol 112.09
    NMP 326.44
    cyclohexane 54.54
    DMSO 313.44
    n-butyl acetate 267.07
    n-octanol 135.56
    chloroform 1138.36
    n-propyl acetate 165.4
    acetic acid 238.69
    dichloromethane 775.14
    cyclohexanone 395.19
    propylene glycol 148.49
    isopropyl acetate 227.11
    DMAc 367.04
    2-ethoxyethanol 249.97
    isopentanol 252.95
    n-heptane 32.02
    ethyl formate 185.83
    1,2-dichloroethane 437.91
    n-hexanol 333.81
    2-methoxyethanol 454.81
    isobutyl acetate 114.63
    tetrachloromethane 175.32
    n-pentyl acetate 146.57
    transcutol 1000.18
    n-heptanol 130.6
    ethylbenzene 127.04
    MIBK 173.73
    2-propoxyethanol 481.33
    tert-butanol 357.4
    MTBE 289.17
    2-butoxyethanol 239.15
    propionic acid 257.73
    o-xylene 140.96
    formic acid 92.61
    diethyl ether 385.38
    m-xylene 172.98
    p-xylene 151.19
    chlorobenzene 283.41
    dimethyl carbonate 120.14
    n-octane 15.51
    formamide 125.83
    cyclopentanone 429.53
    2-pentanone 302.18
    anisole 257.39
    cyclopentyl methyl ether 275.75
    gamma-butyrolactone 443.03
    1-methoxy-2-propanol 393.7
    pyridine 489.63
    3-pentanone 232.09
    furfural 411.26
    n-dodecane 14.86
    diethylene glycol 326.8
    diisopropyl ether 99.31
    tert-amyl alcohol 235.38
    acetylacetone 319.37
    n-hexadecane 17.14
    acetophenone 184.29
    methyl propionate 307.06
    isopentyl acetate 225.47
    trichloroethylene 787.77
    n-nonanol 117.26
    cyclohexanol 226.12
    benzyl alcohol 182.95
    2-ethylhexanol 151.3
    isooctanol 102.4
    dipropyl ether 162.09
    1,2-dichlorobenzene 228.96
    ethyl lactate 94.44
    propylene carbonate 243.79
    n-methylformamide 251.91
    2-pentanol 198.1
    n-pentane 43.39
    1-propoxy-2-propanol 312.63
    1-methoxy-2-propyl acetate 286.69
    2-(2-methoxypropoxy) propanol 220.39
    mesitylene 102.57
    ε-caprolactone 341.79
    p-cymene 79.04
    epichlorohydrin 553.54
    1,1,1-trichloroethane 496.86
    2-aminoethanol 229.45
    morpholine-4-carbaldehyde 472.9
    sulfolane 349.32
    2,2,4-trimethylpentane 23.65
    2-methyltetrahydrofuran 453.79
    n-hexyl acetate 230.91
    isooctane 22.11
    2-(2-butoxyethoxy)ethanol 307.37
    sec-butyl acetate 133.43
    tert-butyl acetate 208.97
    decalin 34.61
    glycerin 169.79
    diglyme 499.8
    acrylic acid 203.97
    isopropyl myristate 92.43
    n-butyric acid 322.01
    acetyl acetate 219.67
    di(2-ethylhexyl) phthalate 88.49
    ethyl propionate 166.96
    nitromethane 394.58
    1,2-diethoxyethane 338.19
    benzonitrile 273.12
    trioctyl phosphate 61.54
    1-bromopropane 317.18
    gamma-valerolactone 559.62
    n-decanol 85.8
    triethyl phosphate 78.26
    4-methyl-2-pentanol 125.78
    propionitrile 344.49
    vinylene carbonate 245.59
    1,1,2-trichlorotrifluoroethane 339.16
    DMS 207.15
    cumene 87.21
    2-octanol 89.48
    2-hexanone 180.08
    octyl acetate 116.02
    limonene 105.83
    1,2-dimethoxyethane 359.49
    ethyl orthosilicate 80.31
    tributyl phosphate 76.99
    diacetone alcohol 244.47
    N,N-dimethylaniline 147.23
    acrylonitrile 370.39
    aniline 278.5
    1,3-propanediol 268.28
    bromobenzene 309.04
    dibromomethane 543.23
    1,1,2,2-tetrachloroethane 609.26
    2-methyl-cyclohexyl acetate 125.88
    tetrabutyl urea 91.49
    diisobutyl methanol 93.21
    2-phenylethanol 230.69
    styrene 157.22
    dioctyl adipate 110.24
    dimethyl sulfate 154.65
    ethyl butyrate 160.54
    methyl lactate 138.01
    butyl lactate 121.13
    diethyl carbonate 114.69
    propanediol butyl ether 207.08
    triethyl orthoformate 115.75
    p-tert-butyltoluene 82.45
    methyl 4-tert-butylbenzoate 165.75
    morpholine 711.5
    tert-butylamine 239.81
    n-dodecanol 65.84
    dimethoxymethane 325.12
    ethylene carbonate 201.13
    cyrene 149.43
    2-ethoxyethyl acetate 243.78
    2-ethylhexyl acetate 171.44
    1,2,4-trichlorobenzene 279.79
    4-methylpyridine 452.44
    dibutyl ether 142.34
    2,6-dimethyl-4-heptanol 93.21
    DEF 281.17
    dimethyl isosorbide 291.47
    tetrachloroethylene 386.42
    eugenol 175.86
    triacetin 196.82
    span 80 183.36
    1,4-butanediol 109.5
    1,1-dichloroethane 586.48
    2-methyl-1-pentanol 164.24
    methyl formate 169.6
    2-methyl-1-butanol 215.86
    n-decane 23.81
    butyronitrile 340.98
    3,7-dimethyl-1-octanol 141.52
    1-chlorooctane 94.2
    1-chlorotetradecane 41.1
    n-nonane 22.16
    undecane 18.37
    tert-butylcyclohexane 37.37
    cyclooctane 21.69
    cyclopentanol 234.55
    tetrahydropyran 527.32
    tert-amyl methyl ether 187.15
    2,5,8-trioxanonane 325.51
    1-hexene 141.94
    2-isopropoxyethanol 201.01
    2,2,2-trifluoroethanol 105.69
    methyl butyrate 184.58

    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