2-Methyl-2-cyclopenten-1-one

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    1120-73-6

    Molecular formula
    C6H8O

    SMILES
    CC1=CCCC1=O

    Safety labels

    Flammable
    Flammable

  • Odor profile

    Caramellic 69.56%
    Mint 54.22%
    Burnt 51.88%
    Roasted 48.58%
    Ketonic 48.37%
    Nutty 48.06%
    Sweet 46.63%
    Coumarinic 40.64%
    Tobacco 39.69%
    Hay 37.57%

    Scent© AI

  • Properties

    XLogP3-AA
    0.9

    Molecular weight
    96.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    163°C

    Flash point est.
    39.32 ˚C

  • Synonyms

    • 1120-73-6
    • 2-METHYL-2-CYCLOPENTEN-1-ONE
    • 2-Methylcyclopent-2-enone
    • 2-Methyl-2-cyclopentenone
    • 2-methylcyclopent-2-en-1-one
    • 2-Cyclopenten-1-one, 2-methyl-
    • N5S7BLT3Q9
    • MFCD00012275
    • DTXSID00870846
    • 89911-17-1
    • 2-methyl-2-cyclopentene-1-one
    • Cyclopentenone, 2-methyl-
    • Cyclopentenone, methyl-
    • Methyl-Cyclopentenone
    • 2Cyclopenten1one, 2methyl
    • UNII-N5S7BLT3Q9
    • 2-Methyl-cyclopent-2-enone
    • CHEMBL4097891
    • 2-Cyclopenten-1-one,2-methyl-
    • 2-methyl cyclopent-2-en-1-one
    • 2-methyl-cyclopent-2-en-1-one
    • DTXCID50818531
    • CHEBI:179529
    • GEO-03736
    • AKOS004907581
    • 2-Methyl-2-cyclopenten-1-one, 98%
    • SY102025
    • CS-0180943
    • EN300-62498
    • F77943
    • 627-283-9

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 848.3
    methanol 1199.55
    isopropanol 658.56
    water 57.24
    ethyl acetate 500.49
    n-propanol 581.84
    acetone 593.74
    n-butanol 510.1
    acetonitrile 988.19
    DMF 742.62
    toluene 207.98
    isobutanol 501.33
    1,4-dioxane 707.95
    methyl acetate 691.31
    THF 445.48
    2-butanone 512.29
    n-pentanol 399.13
    sec-butanol 586.07
    n-hexane 50.44
    ethylene glycol 228.51
    NMP 353.77
    cyclohexane 28.79
    DMSO 397.04
    n-butyl acetate 191.65
    n-octanol 226.22
    chloroform 1505.66
    n-propyl acetate 266.91
    acetic acid 884.28
    dichloromethane 1082.17
    cyclohexanone 344.71
    propylene glycol 288.31
    isopropyl acetate 291.21
    DMAc 721.4
    2-ethoxyethanol 604.33
    isopentanol 527.23
    n-heptane 25.49
    ethyl formate 345.39
    1,2-dichloroethane 465.78
    n-hexanol 267.22
    2-methoxyethanol 742.25
    isobutyl acetate 183.85
    tetrachloromethane 351.12
    n-pentyl acetate 229.66
    transcutol 1593.64
    n-heptanol 228.03
    ethylbenzene 157.89
    MIBK 260.71
    2-propoxyethanol 394.18
    tert-butanol 680.85
    MTBE 461.98
    2-butoxyethanol 415.14
    propionic acid 586.01
    o-xylene 176.61
    formic acid 509.07
    diethyl ether 353.55
    m-xylene 147.22
    p-xylene 259.16
    chlorobenzene 307.83
    dimethyl carbonate 187.8
    n-octane 18.13
    formamide 857.26
    cyclopentanone 400.87
    2-pentanone 327.08
    anisole 413.33
    cyclopentyl methyl ether 209.76
    gamma-butyrolactone 489.86
    1-methoxy-2-propanol 507.48
    pyridine 678.04
    3-pentanone 248.34
    furfural 650.18
    n-dodecane 16.03
    diethylene glycol 320.91
    diisopropyl ether 123.01
    tert-amyl alcohol 607.95
    acetylacetone 397.3
    n-hexadecane 17.27
    acetophenone 371.83
    methyl propionate 343.9
    isopentyl acetate 209.54
    trichloroethylene 1094.11
    n-nonanol 196.45
    cyclohexanol 244.18
    benzyl alcohol 396.57
    2-ethylhexanol 157.3
    isooctanol 212.38
    dipropyl ether 125.91
    1,2-dichlorobenzene 314.01
    ethyl lactate 142.45
    propylene carbonate 322.02
    n-methylformamide 619.78
    2-pentanol 378.0
    n-pentane 47.41
    1-propoxy-2-propanol 257.92
    1-methoxy-2-propyl acetate 210.35
    2-(2-methoxypropoxy) propanol 357.22
    mesitylene 103.09
    ε-caprolactone 362.31
    p-cymene 92.42
    epichlorohydrin 591.88
    1,1,1-trichloroethane 716.48
    2-aminoethanol 512.22
    morpholine-4-carbaldehyde 661.81
    sulfolane 353.96
    2,2,4-trimethylpentane 44.61
    2-methyltetrahydrofuran 369.48
    n-hexyl acetate 302.94
    isooctane 32.01
    2-(2-butoxyethoxy)ethanol 510.64
    sec-butyl acetate 208.38
    tert-butyl acetate 291.58
    decalin 36.57
    glycerin 334.22
    diglyme 880.28
    acrylic acid 537.16
    isopropyl myristate 117.07
    n-butyric acid 581.05
    acetyl acetate 340.44
    di(2-ethylhexyl) phthalate 128.12
    ethyl propionate 220.88
    nitromethane 1218.38
    1,2-diethoxyethane 402.33
    benzonitrile 462.61
    trioctyl phosphate 81.29
    1-bromopropane 270.09
    gamma-valerolactone 625.1
    n-decanol 129.12
    triethyl phosphate 97.04
    4-methyl-2-pentanol 262.36
    propionitrile 561.15
    vinylene carbonate 369.48
    1,1,2-trichlorotrifluoroethane 624.77
    DMS 250.55
    cumene 137.92
    2-octanol 172.25
    2-hexanone 264.68
    octyl acetate 145.69
    limonene 98.91
    1,2-dimethoxyethane 670.54
    ethyl orthosilicate 106.03
    tributyl phosphate 99.32
    diacetone alcohol 351.87
    N,N-dimethylaniline 298.07
    acrylonitrile 786.17
    aniline 386.11
    1,3-propanediol 514.41
    bromobenzene 286.45
    dibromomethane 617.11
    1,1,2,2-tetrachloroethane 773.42
    2-methyl-cyclohexyl acetate 152.34
    tetrabutyl urea 113.3
    diisobutyl methanol 108.14
    2-phenylethanol 278.9
    styrene 208.97
    dioctyl adipate 159.41
    dimethyl sulfate 239.4
    ethyl butyrate 169.67
    methyl lactate 199.47
    butyl lactate 188.02
    diethyl carbonate 137.93
    propanediol butyl ether 375.77
    triethyl orthoformate 136.94
    p-tert-butyltoluene 93.45
    methyl 4-tert-butylbenzoate 285.39
    morpholine 687.07
    tert-butylamine 463.82
    n-dodecanol 90.31
    dimethoxymethane 379.59
    ethylene carbonate 262.89
    cyrene 237.19
    2-ethoxyethyl acetate 353.52
    2-ethylhexyl acetate 151.7
    1,2,4-trichlorobenzene 374.59
    4-methylpyridine 628.55
    dibutyl ether 186.71
    2,6-dimethyl-4-heptanol 108.14
    DEF 373.04
    dimethyl isosorbide 382.68
    tetrachloroethylene 656.24
    eugenol 332.78
    triacetin 323.31
    span 80 279.63
    1,4-butanediol 275.18
    1,1-dichloroethane 661.27
    2-methyl-1-pentanol 414.08
    methyl formate 399.34
    2-methyl-1-butanol 488.95
    n-decane 27.43
    butyronitrile 484.59
    3,7-dimethyl-1-octanol 219.59
    1-chlorooctane 112.46
    1-chlorotetradecane 42.87
    n-nonane 25.4
    undecane 19.96
    tert-butylcyclohexane 51.17
    cyclooctane 12.8
    cyclopentanol 261.83
    tetrahydropyran 332.35
    tert-amyl methyl ether 313.27
    2,5,8-trioxanonane 564.24
    1-hexene 164.3
    2-isopropoxyethanol 438.93
    2,2,2-trifluoroethanol 405.67
    methyl butyrate 310.14

    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

Botanical

Name CAS Botanical Proportion
Carob bean extract 1 9000-40-2 Ceratonia siliqua L., fam. Leguminoseae 0.02%