Dihydro-2,5-dimethylfuran-3(2H)-one

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  • Identifiers

    CAS number
    64026-45-5

    Molecular formula
    C6H10O2

    SMILES
    CC1CC(=O)C(O1)C

    Safety labels

  • Odor profile

    Fragrance
    Sweet 72.5%
    Caramellic 72.39%
    Nutty 57.75%
    Buttery 51.52%
    Burnt 48.23%
    Roasted 47.42%
    Ethereal 38.36%
    Coffee 37.83%
    Coumarinic 35.25%
    Hay 34.07%

     

    Flavor
    Sweet 63.51%
    Caramel 52.34%
    Nutty 50.06%
    Tobacco 32.89%
    Woody 32.29%
    Fruity 31.4%
    Musty 30.98%
    Minty 30.11%
    Bread 29.21%
    Herbal 28.5%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.5

    pKa est.
    7.08 (neutral)

    Molecular weight
    114.14 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    152°C

    Flash point

    • 46.09 ˚C est.

  • Synonyms

    • 64026-45-5
    • 2,5-dimethyloxolan-3-one
    • Dihydro-2,5-dimethylfuran-3(2H)-one
    • 2,5-dimethyltetrahydrofuran-3-one
    • 2,5-dimethyldihydrofuran-3(2h)-one
    • 33794-61-5
    • 3(2H)-Furanone,dihydro-2,5-dimethyl-
    • (cis)-Dihydro-2,5-dimethylfuran-3(2H)-one
    • EINECS 251-679-7
    • EINECS 251-736-6
    • EINECS 264-613-7
    • trans-Dimethyl-2,5-dihydrofuran-3(2H)-one
    • SCHEMBL183685
    • 3-Oxo-2,5-dimethyltetrahydrofuran
    • MFCD18976739
    • SY206751
    • DB-307833
    • NS00053581
    • EN300-243681
    • G75402
    • F553866
    • 64026-45-5

  • Applications

    Dihydro-2,5-dimethylfuran-3(2H)-one, CAS 64026-45-5, is used primarily as a fragrance ingredient and odorant in perfumery, and also appears in cosmetics and personal care formulations as an aroma component. It is often viewed as a synthetic intermediate for commercially available fragrance compounds and may be added to cleaning and sanitation product formulations as an aroma additive. In industrial manufacturing, it can serve as a building block for downstream materials or as an additive in coatings/inks and adhesives. Use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1154.56
    methanol 1955.35
    isopropanol 816.96
    water 348.02
    ethyl acetate 403.83
    n-propanol 766.68
    acetone 678.15
    n-butanol 598.92
    acetonitrile 972.85
    DMF 760.89
    toluene 174.99
    isobutanol 556.81
    1,4-dioxane 853.64
    methyl acetate 470.5
    THF 755.25
    2-butanone 423.91
    n-pentanol 405.05
    sec-butanol 591.83
    n-hexane 51.5
    ethylene glycol 604.14
    NMP 727.8
    cyclohexane 65.2
    DMSO 677.22
    n-butyl acetate 141.89
    n-octanol 161.24
    chloroform 1664.34
    n-propyl acetate 157.5
    acetic acid 1524.89
    dichloromethane 1508.36
    cyclohexanone 438.16
    propylene glycol 460.68
    isopropyl acetate 194.63
    DMAc 628.94
    2-ethoxyethanol 717.79
    isopentanol 449.92
    n-heptane 28.59
    ethyl formate 331.79
    1,2-dichloroethane 578.2
    n-hexanol 278.3
    2-methoxyethanol 1149.41
    isobutyl acetate 100.76
    tetrachloromethane 302.23
    n-pentyl acetate 130.23
    transcutol 1294.6
    n-heptanol 134.24
    ethylbenzene 84.55
    MIBK 168.21
    2-propoxyethanol 494.56
    tert-butanol 703.02
    MTBE 361.44
    2-butoxyethanol 254.35
    propionic acid 671.83
    o-xylene 132.57
    formic acid 1319.42
    diethyl ether 452.05
    m-xylene 127.26
    p-xylene 124.2
    chlorobenzene 295.25
    dimethyl carbonate 128.74
    n-octane 14.4
    formamide 1204.21
    cyclopentanone 535.76
    2-pentanone 277.02
    anisole 225.72
    cyclopentyl methyl ether 337.9
    gamma-butyrolactone 696.58
    1-methoxy-2-propanol 649.38
    pyridine 515.77
    3-pentanone 227.82
    furfural 712.52
    n-dodecane 13.68
    diethylene glycol 571.28
    diisopropyl ether 107.52
    tert-amyl alcohol 529.87
    acetylacetone 318.66
    n-hexadecane 14.78
    acetophenone 187.62
    methyl propionate 298.95
    isopentyl acetate 126.84
    trichloroethylene 1055.49
    n-nonanol 138.42
    cyclohexanol 414.39
    benzyl alcohol 265.38
    2-ethylhexanol 125.98
    isooctanol 104.93
    dipropyl ether 120.8
    1,2-dichlorobenzene 258.67
    ethyl lactate 120.73
    propylene carbonate 323.24
    n-methylformamide 689.15
    2-pentanol 355.73
    n-pentane 65.97
    1-propoxy-2-propanol 263.48
    1-methoxy-2-propyl acetate 175.32
    2-(2-methoxypropoxy) propanol 235.99
    mesitylene 74.36
    ε-caprolactone 424.5
    p-cymene 58.82
    epichlorohydrin 732.72
    1,1,1-trichloroethane 561.73
    2-aminoethanol 817.01
    morpholine-4-carbaldehyde 740.17
    sulfolane 581.16
    2,2,4-trimethylpentane 34.91
    2-methyltetrahydrofuran 622.23
    n-hexyl acetate 212.7
    isooctane 21.33
    2-(2-butoxyethoxy)ethanol 338.86
    sec-butyl acetate 117.21
    tert-butyl acetate 176.98
    decalin 33.85
    glycerin 599.39
    diglyme 565.02
    acrylic acid 663.41
    isopropyl myristate 79.65
    n-butyric acid 592.0
    acetyl acetate 298.71
    di(2-ethylhexyl) phthalate 87.53
    ethyl propionate 147.26
    nitromethane 1395.93
    1,2-diethoxyethane 272.64
    benzonitrile 310.97
    trioctyl phosphate 56.26
    1-bromopropane 352.87
    gamma-valerolactone 708.02
    n-decanol 95.51
    triethyl phosphate 77.48
    4-methyl-2-pentanol 177.68
    propionitrile 505.41
    vinylene carbonate 344.62
    1,1,2-trichlorotrifluoroethane 626.75
    DMS 167.31
    cumene 72.46
    2-octanol 93.82
    2-hexanone 176.79
    octyl acetate 100.92
    limonene 87.24
    1,2-dimethoxyethane 632.31
    ethyl orthosilicate 77.12
    tributyl phosphate 74.57
    diacetone alcohol 252.59
    N,N-dimethylaniline 156.09
    acrylonitrile 577.71
    aniline 337.51
    1,3-propanediol 824.75
    bromobenzene 264.73
    dibromomethane 876.94
    1,1,2,2-tetrachloroethane 737.23
    2-methyl-cyclohexyl acetate 107.38
    tetrabutyl urea 90.36
    diisobutyl methanol 75.36
    2-phenylethanol 185.08
    styrene 113.3
    dioctyl adipate 114.31
    dimethyl sulfate 201.71
    ethyl butyrate 114.21
    methyl lactate 200.6
    butyl lactate 108.85
    diethyl carbonate 91.21
    propanediol butyl ether 252.48
    triethyl orthoformate 94.61
    p-tert-butyltoluene 57.22
    methyl 4-tert-butylbenzoate 169.68
    morpholine 865.27
    tert-butylamine 434.87
    n-dodecanol 70.04
    dimethoxymethane 442.64
    ethylene carbonate 265.12
    cyrene 210.59
    2-ethoxyethyl acetate 203.8
    2-ethylhexyl acetate 99.92
    1,2,4-trichlorobenzene 318.69
    4-methylpyridine 475.86
    dibutyl ether 135.54
    2,6-dimethyl-4-heptanol 75.36
    DEF 342.35
    dimethyl isosorbide 314.76
    tetrachloroethylene 572.09
    eugenol 187.21
    triacetin 215.99
    span 80 192.3
    1,4-butanediol 381.96
    1,1-dichloroethane 719.19
    2-methyl-1-pentanol 330.71
    methyl formate 468.74
    2-methyl-1-butanol 466.87
    n-decane 23.72
    butyronitrile 435.86
    3,7-dimethyl-1-octanol 148.76
    1-chlorooctane 87.23
    1-chlorotetradecane 33.66
    n-nonane 23.01
    undecane 17.19
    tert-butylcyclohexane 33.51
    cyclooctane 21.67
    cyclopentanol 515.25
    tetrahydropyran 528.29
    tert-amyl methyl ether 260.38
    2,5,8-trioxanonane 394.92
    1-hexene 142.63
    2-isopropoxyethanol 417.83
    2,2,2-trifluoroethanol 612.93
    methyl butyrate 187.93

    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