5-Octen-2-one, 6-methyl-

Overview IFRA Request a quote

  • Identifiers

    CAS number
    24199-46-0

    Molecular formula
    C9H16O

    SMILES
    CCC(=CCCC(=O)C)C

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 87.56%
    Herbal 67.01%
    Green 66.1%
    Fatty 56.98%
    Ketonic 53.41%
    Earthy 49.65%
    Cheesy 49.65%
    Fresh 46.4%
    Spicy 43.47%
    Dairy 41.7%

     

    Flavor
    Green 61.63%
    Fruity 58.18%
    Floral 51.77%
    Bitter 45.67%
    Earthy 43.7%
    Herbal 43.45%
    Citrus 41.47%
    Fresh 40.32%
    Woody 39.86%
    Spicy 36.72%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.3

    pKa est.
    9.56 (weak base)

    Molecular weight
    140.22 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    193°C

    Flash point

    • 65.04 ˚C est.

  • Synonyms

    • 5-Octen-2-one, 6-methyl-
    • 6-Methyloct-5-en-2-one
    • 24199-46-0
    • Ethylheptenone
    • 75JXR26RR9
    • ETHYL HEPTENONE
    • EINECS 246-073-4
    • AI3-35815
    • EC 246-073-4
    • DTXSID4066967
    • RefChem:537488
    • DTXCID5037024
    • 246-073-4
    • 6-methyl-5-octen-2-on
    • 6-methyl-oct-5-en-2-one
    • UNII-75JXR26RR9
    • SCHEMBL3019155
    • 18437-35-9
    • NS00005392
    • 24199-46-0

  • Applications

    5-Octen-2-one, 6-methyl- (CAS 24199-46-0) may be used as a fragrance ingredient or odorant, primarily in perfumery and cosmetic formulations. It is often evaluated as an intermediate in fragrance chemistry to support the synthesis of additional aroma compounds. The compound may be incorporated into household products (cleaning agents, laundry detergents, air fresheners) to impart or modify scent, and can serve as a fragrance additive in coatings, inks, and plastics in industrial manufacturing. In some cases, it functions as a building block for aroma chemicals in broader synthesis. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 4404.39
    methanol 3995.67
    isopropanol 3607.61
    water 4.65
    ethyl acetate 2257.97
    n-propanol 3074.02
    acetone 3048.91
    n-butanol 3010.41
    acetonitrile 2420.76
    DMF 1921.63
    toluene 1074.73
    isobutanol 2106.56
    1,4-dioxane 4366.76
    methyl acetate 1747.85
    THF 3969.44
    2-butanone 2187.47
    n-pentanol 1815.01
    sec-butanol 2821.72
    n-hexane 1099.34
    ethylene glycol 535.81
    NMP 1929.25
    cyclohexane 985.57
    DMSO 1772.99
    n-butyl acetate 1434.78
    n-octanol 874.85
    chloroform 4917.86
    n-propyl acetate 1113.03
    acetic acid 2166.86
    dichloromethane 3320.31
    cyclohexanone 2689.56
    propylene glycol 1019.51
    isopropyl acetate 1280.04
    DMAc 1680.53
    2-ethoxyethanol 1723.38
    isopentanol 2305.96
    n-heptane 431.41
    ethyl formate 977.96
    1,2-dichloroethane 1832.11
    n-hexanol 2264.66
    2-methoxyethanol 2753.53
    isobutyl acetate 653.13
    tetrachloromethane 1072.48
    n-pentyl acetate 825.08
    transcutol 5529.17
    n-heptanol 815.28
    ethylbenzene 576.19
    MIBK 936.4
    2-propoxyethanol 2198.32
    tert-butanol 3479.68
    MTBE 2703.96
    2-butoxyethanol 1087.3
    propionic acid 1712.63
    o-xylene 592.68
    formic acid 602.73
    diethyl ether 3286.47
    m-xylene 648.19
    p-xylene 676.43
    chlorobenzene 1086.6
    dimethyl carbonate 341.56
    n-octane 121.66
    formamide 836.89
    cyclopentanone 2265.41
    2-pentanone 1916.28
    anisole 997.0
    cyclopentyl methyl ether 2201.14
    gamma-butyrolactone 2117.45
    1-methoxy-2-propanol 2054.81
    pyridine 2459.56
    3-pentanone 1318.94
    furfural 1610.14
    n-dodecane 68.1
    diethylene glycol 1243.21
    diisopropyl ether 756.99
    tert-amyl alcohol 2814.52
    acetylacetone 1424.7
    n-hexadecane 76.64
    acetophenone 716.01
    methyl propionate 1277.46
    isopentyl acetate 1152.61
    trichloroethylene 3329.9
    n-nonanol 717.17
    cyclohexanol 2549.1
    benzyl alcohol 787.42
    2-ethylhexanol 1168.56
    isooctanol 585.79
    dipropyl ether 1360.8
    1,2-dichlorobenzene 840.78
    ethyl lactate 417.77
    propylene carbonate 1125.35
    n-methylformamide 1123.7
    2-pentanol 2077.69
    n-pentane 748.48
    1-propoxy-2-propanol 1589.18
    1-methoxy-2-propyl acetate 1097.44
    2-(2-methoxypropoxy) propanol 970.88
    mesitylene 362.32
    ε-caprolactone 2179.16
    p-cymene 316.66
    epichlorohydrin 2321.7
    1,1,1-trichloroethane 2433.34
    2-aminoethanol 1449.01
    morpholine-4-carbaldehyde 2276.04
    sulfolane 1764.24
    2,2,4-trimethylpentane 237.56
    2-methyltetrahydrofuran 4024.86
    n-hexyl acetate 1371.1
    isooctane 161.41
    2-(2-butoxyethoxy)ethanol 1501.55
    sec-butyl acetate 775.62
    tert-butyl acetate 1222.97
    decalin 335.43
    glycerin 959.87
    diglyme 2331.45
    acrylic acid 1192.06
    isopropyl myristate 404.45
    n-butyric acid 2445.49
    acetyl acetate 1053.89
    di(2-ethylhexyl) phthalate 353.41
    ethyl propionate 923.65
    nitromethane 2111.22
    1,2-diethoxyethane 1911.87
    benzonitrile 1075.08
    trioctyl phosphate 253.43
    1-bromopropane 1891.59
    gamma-valerolactone 2715.78
    n-decanol 475.09
    triethyl phosphate 337.81
    4-methyl-2-pentanol 870.27
    propionitrile 1834.11
    vinylene carbonate 943.67
    1,1,2-trichlorotrifluoroethane 1674.77
    DMS 715.88
    cumene 356.81
    2-octanol 582.23
    2-hexanone 1335.68
    octyl acetate 531.89
    limonene 624.52
    1,2-dimethoxyethane 2451.99
    ethyl orthosilicate 388.29
    tributyl phosphate 349.53
    diacetone alcohol 1244.77
    N,N-dimethylaniline 624.83
    acrylonitrile 1547.29
    aniline 1470.33
    1,3-propanediol 1779.78
    bromobenzene 1125.18
    dibromomethane 2612.93
    1,1,2,2-tetrachloroethane 2845.96
    2-methyl-cyclohexyl acetate 683.68
    tetrabutyl urea 424.44
    diisobutyl methanol 508.86
    2-phenylethanol 860.8
    styrene 752.96
    dioctyl adipate 546.53
    dimethyl sulfate 468.18
    ethyl butyrate 955.93
    methyl lactate 546.04
    butyl lactate 582.45
    diethyl carbonate 532.82
    propanediol butyl ether 1115.2
    triethyl orthoformate 648.15
    p-tert-butyltoluene 326.34
    methyl 4-tert-butylbenzoate 619.71
    morpholine 5217.78
    tert-butylamine 2681.77
    n-dodecanol 328.33
    dimethoxymethane 1201.01
    ethylene carbonate 920.61
    cyrene 625.87
    2-ethoxyethyl acetate 993.73
    2-ethylhexyl acetate 918.8
    1,2,4-trichlorobenzene 999.58
    4-methylpyridine 2392.84
    dibutyl ether 1208.53
    2,6-dimethyl-4-heptanol 508.86
    DEF 1788.51
    dimethyl isosorbide 1159.5
    tetrachloroethylene 1952.38
    eugenol 601.79
    triacetin 987.66
    span 80 1001.26
    1,4-butanediol 633.4
    1,1-dichloroethane 2621.31
    2-methyl-1-pentanol 1472.59
    methyl formate 638.03
    2-methyl-1-butanol 2212.79
    n-decane 145.5
    butyronitrile 2081.27
    3,7-dimethyl-1-octanol 787.0
    1-chlorooctane 524.05
    1-chlorotetradecane 163.58
    n-nonane 167.51
    undecane 92.38
    tert-butylcyclohexane 300.04
    cyclooctane 278.57
    cyclopentanol 2152.06
    tetrahydropyran 4606.59
    tert-amyl methyl ether 1791.19
    2,5,8-trioxanonane 1454.5
    1-hexene 2172.78
    2-isopropoxyethanol 1179.25
    2,2,2-trifluoroethanol 517.71
    methyl butyrate 1214.76

    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