2-Acetyl-4-methylfuran

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  • Identifiers

    CAS number
    33342-43-7

    Molecular formula
    C7H8O2

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

    Safety labels

  • Odor profile

    Fragrance
    Sweet 81.58%
    Nutty 69.87%
    Caramellic 68.36%
    Coumarinic 51.55%
    Hay 46.53%
    Roasted 46.1%
    Almond 45.4%
    Vanilla 40.1%
    Creamy 38.9%
    Musty 38.85%

     

    Flavor
    Sweet 71.84%
    Caramel 55.96%
    Nutty 49.38%
    Woody 46.17%
    Tobacco 45.19%
    Musty 43.95%
    Coffee 40.31%
    Almond 39.16%
    Cocoa 38.19%
    Potato 35.65%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.4

    pKa est.
    6.64 (neutral)

    Molecular weight
    124.14 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Fast

    Boiling point est.
    180°C

    Flash point

    • 49.91 ˚C est.

  • Synonyms

    • 2-acetyl-4-methylfuran
    • 33342-43-7
    • SCHEMBL3385880
    • IYEVQBUAWBANLZ-UHFFFAOYSA-N
    • 1-(4-methylfuran-2-yl)ethan-1-one
    • 33342-43-7

  • Applications

    2-Acetyl-4-methylfuran, CAS 33342-43-7, is a furan-based aroma compound used primarily as a fragrance and flavor ingredient across multiple industries: in perfumery to provide roasted and nutty notes; in flavor formulations to contribute specific aroma profiles; in cosmetics/personal care as a fragrance component; in household products such as air fresheners and cleaners as a scent additive; and as an intermediate in fragrance chemistry for the synthesis of other aroma materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 959.7
    methanol 1480.39
    isopropanol 753.33
    water 56.95
    ethyl acetate 613.33
    n-propanol 720.7
    acetone 1030.56
    n-butanol 679.04
    acetonitrile 736.63
    DMF 1464.51
    toluene 312.42
    isobutanol 605.19
    1,4-dioxane 1026.67
    methyl acetate 747.21
    THF 952.16
    2-butanone 729.54
    n-pentanol 495.33
    sec-butanol 692.88
    n-hexane 100.51
    ethylene glycol 517.05
    NMP 776.71
    cyclohexane 77.53
    DMSO 863.24
    n-butyl acetate 294.09
    n-octanol 337.21
    chloroform 1214.45
    n-propyl acetate 359.25
    acetic acid 555.23
    dichloromethane 1257.98
    cyclohexanone 643.4
    propylene glycol 471.01
    isopropyl acetate 378.73
    DMAc 1114.06
    2-ethoxyethanol 916.53
    isopentanol 576.7
    n-heptane 65.4
    ethyl formate 558.87
    1,2-dichloroethane 723.01
    n-hexanol 447.27
    2-methoxyethanol 1383.78
    isobutyl acetate 242.8
    tetrachloromethane 273.76
    n-pentyl acetate 237.21
    transcutol 1039.56
    n-heptanol 267.01
    ethylbenzene 235.12
    MIBK 418.09
    2-propoxyethanol 821.27
    tert-butanol 901.51
    MTBE 698.79
    2-butoxyethanol 453.13
    propionic acid 482.99
    o-xylene 269.98
    formic acid 409.75
    diethyl ether 626.05
    m-xylene 273.63
    p-xylene 317.82
    chlorobenzene 358.86
    dimethyl carbonate 330.78
    n-octane 43.92
    formamide 474.08
    cyclopentanone 770.56
    2-pentanone 614.98
    anisole 540.05
    cyclopentyl methyl ether 497.44
    gamma-butyrolactone 758.21
    1-methoxy-2-propanol 973.25
    pyridine 502.79
    3-pentanone 454.72
    furfural 785.89
    n-dodecane 45.86
    diethylene glycol 767.92
    diisopropyl ether 229.06
    tert-amyl alcohol 754.07
    acetylacetone 690.94
    n-hexadecane 49.85
    acetophenone 413.28
    methyl propionate 525.51
    isopentyl acetate 286.81
    trichloroethylene 1142.46
    n-nonanol 269.52
    cyclohexanol 429.35
    benzyl alcohol 401.81
    2-ethylhexanol 255.92
    isooctanol 222.59
    dipropyl ether 258.69
    1,2-dichlorobenzene 363.61
    ethyl lactate 260.19
    propylene carbonate 470.81
    n-methylformamide 726.79
    2-pentanol 480.09
    n-pentane 98.07
    1-propoxy-2-propanol 474.28
    1-methoxy-2-propyl acetate 349.57
    2-(2-methoxypropoxy) propanol 388.78
    mesitylene 188.33
    ε-caprolactone 536.39
    p-cymene 135.28
    epichlorohydrin 937.87
    1,1,1-trichloroethane 734.11
    2-aminoethanol 667.67
    morpholine-4-carbaldehyde 1048.13
    sulfolane 808.65
    2,2,4-trimethylpentane 82.41
    2-methyltetrahydrofuran 713.15
    n-hexyl acetate 398.41
    isooctane 66.09
    2-(2-butoxyethoxy)ethanol 485.91
    sec-butyl acetate 264.16
    tert-butyl acetate 420.56
    decalin 74.12
    glycerin 628.99
    diglyme 860.69
    acrylic acid 434.28
    isopropyl myristate 170.45
    n-butyric acid 538.29
    acetyl acetate 381.36
    di(2-ethylhexyl) phthalate 154.03
    ethyl propionate 354.45
    nitromethane 1004.87
    1,2-diethoxyethane 381.17
    benzonitrile 424.7
    trioctyl phosphate 123.21
    1-bromopropane 466.13
    gamma-valerolactone 916.16
    n-decanol 201.54
    triethyl phosphate 152.11
    4-methyl-2-pentanol 305.41
    propionitrile 526.49
    vinylene carbonate 458.77
    1,1,2-trichlorotrifluoroethane 670.42
    DMS 318.87
    cumene 190.27
    2-octanol 227.69
    2-hexanone 410.72
    octyl acetate 211.6
    limonene 177.18
    1,2-dimethoxyethane 1152.51
    ethyl orthosilicate 149.66
    tributyl phosphate 143.47
    diacetone alcohol 517.34
    N,N-dimethylaniline 387.78
    acrylonitrile 623.0
    aniline 370.69
    1,3-propanediol 755.58
    bromobenzene 377.41
    dibromomethane 778.36
    1,1,2,2-tetrachloroethane 882.48
    2-methyl-cyclohexyl acetate 210.97
    tetrabutyl urea 180.92
    diisobutyl methanol 162.81
    2-phenylethanol 329.79
    styrene 282.83
    dioctyl adipate 204.7
    dimethyl sulfate 470.53
    ethyl butyrate 259.75
    methyl lactate 358.26
    butyl lactate 207.32
    diethyl carbonate 198.12
    propanediol butyl ether 444.74
    triethyl orthoformate 185.87
    p-tert-butyltoluene 139.31
    methyl 4-tert-butylbenzoate 331.78
    morpholine 893.1
    tert-butylamine 583.45
    n-dodecanol 158.73
    dimethoxymethane 928.79
    ethylene carbonate 378.84
    cyrene 342.04
    2-ethoxyethyl acetate 309.54
    2-ethylhexyl acetate 218.32
    1,2,4-trichlorobenzene 418.7
    4-methylpyridine 620.37
    dibutyl ether 262.14
    2,6-dimethyl-4-heptanol 162.81
    DEF 704.04
    dimethyl isosorbide 468.76
    tetrachloroethylene 630.8
    eugenol 364.46
    triacetin 300.77
    span 80 277.52
    1,4-butanediol 434.15
    1,1-dichloroethane 820.35
    2-methyl-1-pentanol 456.1
    methyl formate 702.5
    2-methyl-1-butanol 591.21
    n-decane 66.63
    butyronitrile 564.07
    3,7-dimethyl-1-octanol 279.31
    1-chlorooctane 209.21
    1-chlorotetradecane 96.86
    n-nonane 67.51
    undecane 53.74
    tert-butylcyclohexane 89.85
    cyclooctane 42.73
    cyclopentanol 468.11
    tetrahydropyran 615.72
    tert-amyl methyl ether 530.53
    2,5,8-trioxanonane 583.45
    1-hexene 267.61
    2-isopropoxyethanol 609.8
    2,2,2-trifluoroethanol 325.16
    methyl butyrate 481.38

    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