7-Oxabicyclo[4.1.0]heptan-2-one, 1-methyl-4-(1-methylethenyl)-

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  • Identifiers

    CAS number
    33204-74-9

    Molecular formula
    C10H14O2

    SMILES
    CC(=C)C1CC2C(O2)(C(=O)C1)C

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Sweet 70.93%
    Mint 59.8%
    Spicy 47.72%
    Herbal 43.82%
    Woody 36.9%
    Camphoreous 36.29%
    Citrus 32.42%
    Caramellic 32.37%
    Tobacco 29.93%
    Hay 28.76%

     

    Flavor
    Minty 63.72%
    Herbal 32.74%
    Spearmint 31.41%
    Bitter 27.5%
    Spice 27.27%
    Mint 27.17%
    Fresh 24.95%
    Basil 21.74%
    Peppermint 21.26%
    Celery 20.75%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.6

    pKa est.
    7.39 (neutral)

    Molecular weight
    166.22 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    236°C

    Flash point

    • 99.05 ˚C est.

  • Synonyms

    • 33204-74-9
    • Carvone oxide
    • Carvone Epoxide
    • 7-Oxabicyclo[4.1.0]heptan-2-one, 1-methyl-4-(1-methylethenyl)-
    • 1-methyl-4-prop-1-en-2-yl-7-oxabicyclo[4.1.0]heptan-2-one
    • 4-Isopropenyl-1-methyl-7-oxabicyclo[4.1.0]heptan-2-one
    • (1xi,4xi,6xi)-Carvone oxide
    • 1-Carvone oxide
    • (+)-Carvone epoxide
    • (1alpha,4alpha,6alpha)-(+)-1-methyl-4-(1-methylvinyl)-7-oxabicyclo[4.1.0]heptan-2-one
    • 1-METHYL-4-(1-METHYLVINYL)-7-OXABICYCLO[4.1.0]HEPTAN-2-ONE
    • 7-Oxabicyclo(4.1.0)heptan-2-one, 1-methyl-4-(1-methylethenyl)-
    • Carvone-5,6-oxide
    • DTXSID70865668
    • 1-Methyl-4-(1-methylvinyl)-7-oxabicyclo(4.1.0)heptan-2-one
    • UNII-1PW5U5978E
    • EINECS 251-405-6
    • delta8-p-Menthenyl-1,6-epoxy-2-one
    • SCHEMBL3364378
    • CHEBI:195773
    • 1PW5U5978E
    • PBA90397
    • TAA38349
    • NSC126328
    • NSC316066
    • 1-METHYL-4-(PROP-1-EN-2-YL)-7-OXABICYCLO[4.1.0]HEPTAN-2-ONE
    • NSC-126328
    • DB-280005
    • NS00012078
    • 2,3-epoxy-5-isopropenyl-2-methylcyclohexanone
    • p-Menth-8-en-2-one,6-epoxy-, (1R,4R,6R)-(-)-
    • 7-Oxabicyclo[4.1.0]heptan-2-one, (1.alpha.,4.alpha.,6.alpha.)-(+)-

  • Applications

    7-Oxabicyclo[4.1.0]heptan-2-one, 1-methyl-4-(1-methylethenyl)- (CAS 33204-74-9) is primarily encountered as a specialty chemical used as a fragrance-related intermediate. It may be evaluated as an odor-active ingredient or fragrance component in perfumery, contributing to distinctive notes in various formulations. In cosmetics and personal care, it can be used as a fragrance ingredient within lotions, creams, and other products, within regulatory and formulation limits. The compound can serve as an intermediate in organic synthesis for other specialty chemicals, and may function as a building block in polymer or plastic-related applications. In coatings, inks, and cleaning products, it may be added for scent purposes or used as a reactive bicyclic lactone-derived intermediate in formulation development. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 172.57
    methanol 240.16
    isopropanol 146.2
    water 2.49
    ethyl acetate 117.3
    n-propanol 130.42
    acetone 121.32
    n-butanol 111.88
    acetonitrile 146.27
    DMF 131.5
    toluene 75.97
    isobutanol 87.04
    1,4-dioxane 311.55
    methyl acetate 146.43
    THF 182.82
    2-butanone 125.87
    n-pentanol 79.75
    sec-butanol 103.18
    n-hexane 1.65
    ethylene glycol 65.91
    NMP 54.62
    cyclohexane 5.79
    DMSO 105.51
    n-butyl acetate 72.72
    n-octanol 41.86
    chloroform 264.72
    n-propyl acetate 67.01
    acetic acid 109.15
    dichloromethane 193.9
    cyclohexanone 115.37
    propylene glycol 74.63
    isopropyl acetate 67.08
    DMAc 143.63
    2-ethoxyethanol 198.19
    isopentanol 98.18
    n-heptane 2.42
    ethyl formate 101.89
    1,2-dichloroethane 87.18
    n-hexanol 80.27
    2-methoxyethanol 307.98
    isobutyl acetate 47.89
    tetrachloromethane 34.49
    n-pentyl acetate 47.33
    transcutol 400.91
    n-heptanol 41.24
    ethylbenzene 40.17
    MIBK 60.93
    2-propoxyethanol 190.94
    tert-butanol 133.04
    MTBE 72.92
    2-butoxyethanol 106.58
    propionic acid 87.51
    o-xylene 44.82
    formic acid 88.57
    diethyl ether 68.88
    m-xylene 44.23
    p-xylene 61.06
    chlorobenzene 76.41
    dimethyl carbonate 46.75
    n-octane 1.58
    formamide 152.03
    cyclopentanone 96.87
    2-pentanone 80.98
    anisole 104.47
    cyclopentyl methyl ether 53.71
    gamma-butyrolactone 101.71
    1-methoxy-2-propanol 189.04
    pyridine 211.17
    3-pentanone 54.37
    furfural 154.45
    n-dodecane 2.29
    diethylene glycol 198.24
    diisopropyl ether 19.36
    tert-amyl alcohol 87.08
    acetylacetone 99.26
    n-hexadecane 2.66
    acetophenone 89.75
    methyl propionate 80.72
    isopentyl acetate 71.52
    trichloroethylene 189.21
    n-nonanol 39.88
    cyclohexanol 72.3
    benzyl alcohol 117.71
    2-ethylhexanol 41.03
    isooctanol 33.97
    dipropyl ether 27.93
    1,2-dichlorobenzene 63.92
    ethyl lactate 47.25
    propylene carbonate 71.6
    n-methylformamide 116.47
    2-pentanol 63.21
    n-pentane 2.72
    1-propoxy-2-propanol 109.57
    1-methoxy-2-propyl acetate 93.02
    2-(2-methoxypropoxy) propanol 100.3
    mesitylene 24.66
    ε-caprolactone 106.83
    p-cymene 23.79
    epichlorohydrin 165.21
    1,1,1-trichloroethane 94.87
    2-aminoethanol 107.72
    morpholine-4-carbaldehyde 169.55
    sulfolane 64.77
    2,2,4-trimethylpentane 2.65
    2-methyltetrahydrofuran 104.97
    n-hexyl acetate 63.46
    isooctane 2.51
    2-(2-butoxyethoxy)ethanol 146.45
    sec-butyl acetate 49.09
    tert-butyl acetate 61.2
    decalin 4.68
    glycerin 102.78
    diglyme 250.65
    acrylic acid 72.52
    isopropyl myristate 27.68
    n-butyric acid 106.94
    acetyl acetate 79.77
    di(2-ethylhexyl) phthalate 33.78
    ethyl propionate 53.35
    nitromethane 182.84
    1,2-diethoxyethane 107.5
    benzonitrile 121.25
    trioctyl phosphate 21.32
    1-bromopropane 46.1
    gamma-valerolactone 198.65
    n-decanol 29.01
    triethyl phosphate 29.22
    4-methyl-2-pentanol 46.06
    propionitrile 114.34
    vinylene carbonate 93.42
    1,1,2-trichlorotrifluoroethane 125.8
    DMS 64.08
    cumene 27.36
    2-octanol 28.24
    2-hexanone 63.11
    octyl acetate 34.0
    limonene 24.17
    1,2-dimethoxyethane 233.64
    ethyl orthosilicate 28.91
    tributyl phosphate 26.89
    diacetone alcohol 93.53
    N,N-dimethylaniline 59.47
    acrylonitrile 148.55
    aniline 103.06
    1,3-propanediol 174.68
    bromobenzene 73.37
    dibromomethane 111.24
    1,1,2,2-tetrachloroethane 137.61
    2-methyl-cyclohexyl acetate 48.54
    tetrabutyl urea 34.86
    diisobutyl methanol 28.01
    2-phenylethanol 104.78
    styrene 47.68
    dioctyl adipate 37.94
    dimethyl sulfate 43.38
    ethyl butyrate 51.75
    methyl lactate 59.22
    butyl lactate 49.62
    diethyl carbonate 44.31
    propanediol butyl ether 100.87
    triethyl orthoformate 39.77
    p-tert-butyltoluene 21.94
    methyl 4-tert-butylbenzoate 59.4
    morpholine 281.64
    tert-butylamine 62.5
    n-dodecanol 21.35
    dimethoxymethane 140.38
    ethylene carbonate 75.84
    cyrene 76.67
    2-ethoxyethyl acetate 89.13
    2-ethylhexyl acetate 50.79
    1,2,4-trichlorobenzene 76.67
    4-methylpyridine 179.33
    dibutyl ether 35.41
    2,6-dimethyl-4-heptanol 28.01
    DEF 72.86
    dimethyl isosorbide 115.05
    tetrachloroethylene 93.97
    eugenol 76.18
    triacetin 69.9
    span 80 67.67
    1,4-butanediol 72.39
    1,1-dichloroethane 107.81
    2-methyl-1-pentanol 70.09
    methyl formate 86.04
    2-methyl-1-butanol 76.33
    n-decane 3.33
    butyronitrile 108.89
    3,7-dimethyl-1-octanol 47.0
    1-chlorooctane 15.68
    1-chlorotetradecane 7.63
    n-nonane 2.45
    undecane 2.7
    tert-butylcyclohexane 4.21
    cyclooctane 2.13
    cyclopentanol 66.27
    tetrahydropyran 143.44
    tert-amyl methyl ether 44.4
    2,5,8-trioxanonane 173.01
    1-hexene 11.11
    2-isopropoxyethanol 120.83
    2,2,2-trifluoroethanol 53.35
    methyl butyrate 69.6

    Scent© AI

1 4

IFRA standard 51

Recommendation
Prohibition
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 0 % Category 7A
Rinse-off products applied to the hair with some hand contact
 0 %
Category 2
Products applied to the axillae
 0 % Category 7B
Leave-on products applied to the hair with some hand contact
 0 %
Category 3
Products applied to the face/body using fingertips
 0 % Category 8
Products with significant anogenital exposure
 0 %
Category 4
Products related to fine fragrance
 0 % Category 9
Products with body and hand exposure, primarily rinse off
 0 %
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 0 % Category 10A
Household care products with mostly hand contact
 0 %
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 0 % Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 0 %
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 0 % Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 0 %
Category 5D
Baby Creams, baby Oils and baby talc
 0 % Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 0 %
Category 6
Products with oral and lip exposure
 0 % Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 0 %

Prohibition
Carvone oxide should not be used as a fragrance ingredient.