3-Methyl-2-furaldehyde

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  • Identifiers

    CAS number
    33342-48-2

    Molecular formula
    C6H6O2

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

    Safety labels

    Acute Toxic
    Acute Toxic

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Sweet 88.76%
    Caramellic 73.03%
    Nutty 65.08%
    Almond 54.87%
    Spicy 53.71%
    Coumarinic 46.82%
    Burnt 45.17%
    Coffee 44.37%
    Roasted 40.7%
    Vanilla 40.63%

     

    Flavor
    Sweet 63.7%
    Almond 61.14%
    Caramel 60.48%
    Woody 48.3%
    Bread 39.55%
    Coffee 35.75%
    Spice 34.92%
    Nutty 32.5%
    Cocoa 32.48%
    Tobacco 31.83%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.1

    pKa est.
    5.49 (weak acid)

    Molecular weight
    110.11 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    171°C

    Flash point

    • 47.97 ˚C est.

  • Synonyms

    • 3-Methyl-2-furaldehyde
    • RefChem:503660
    • 688-368-4
    • 3-methylfuran-2-carbaldehyde
    • 33342-48-2
    • MFCD09817485
    • 3-Methyl-2-formylfuran
    • 2-Furancarboxaldehyde, 3-methyl-
    • Furancarboxaldehyde, methyl-
    • 3-Methylfuran-2-carboxaldehyde 97%
    • Methylfurfurol
    • 3-Methylfuran-2-carboxaldehyde
    • 3-methyl-2-furfural
    • SCHEMBL160461
    • 3-methyl-furan-2-carbaldehyde
    • SCHEMBL3090965
    • DTXSID901027921
    • AKOS012321619
    • AT17117
    • PS-3817
    • 123698-33-9
    • SY192579
    • DB-068810
    • EN300-92042
    • Z1079442566
    • 33342-48-2

  • Applications

    3-Methyl-2-furaldehyde (CAS 33342-48-2) is a furan aldehyde used as a versatile synthetic intermediate in several industrial routes. In fragrance and flavor applications, it may serve as a fragrance ingredient or flavor intermediate. In polymers and plastics, it is employed as a building block for furan-based monomers and resins, enabling bio-based material routes. In coatings and inks, it can act as a precursor for specialty resins and compatible coating formulations. In pharmaceuticals, it is used as a synthetic intermediate in the preparation of various organic compounds. It also finds use in adhesives as a crosslinking or resin-forming component, and may be used as a specialty solvent or reaction medium in niche processes. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 208.08
    methanol 292.48
    isopropanol 147.64
    water 17.16
    ethyl acetate 215.15
    n-propanol 181.45
    acetone 280.27
    n-butanol 142.2
    acetonitrile 327.51
    DMF 409.24
    toluene 50.7
    isobutanol 135.39
    1,4-dioxane 398.82
    methyl acetate 322.98
    THF 312.74
    2-butanone 259.32
    n-pentanol 103.77
    sec-butanol 173.43
    n-hexane 7.95
    ethylene glycol 105.18
    NMP 244.87
    cyclohexane 14.74
    DMSO 398.96
    n-butyl acetate 90.39
    n-octanol 52.57
    chloroform 400.74
    n-propyl acetate 120.85
    acetic acid 333.91
    dichloromethane 446.07
    cyclohexanone 195.15
    propylene glycol 89.78
    isopropyl acetate 97.81
    DMAc 302.08
    2-ethoxyethanol 251.83
    isopentanol 127.16
    n-heptane 9.07
    ethyl formate 154.92
    1,2-dichloroethane 286.43
    n-hexanol 77.07
    2-methoxyethanol 373.04
    isobutyl acetate 66.36
    tetrachloromethane 69.77
    n-pentyl acetate 58.75
    transcutol 558.55
    n-heptanol 49.66
    ethylbenzene 40.09
    MIBK 107.54
    2-propoxyethanol 160.93
    tert-butanol 229.69
    MTBE 153.49
    2-butoxyethanol 107.26
    propionic acid 242.44
    o-xylene 57.4
    formic acid 287.82
    diethyl ether 159.47
    m-xylene 46.84
    p-xylene 72.22
    chlorobenzene 108.58
    dimethyl carbonate 112.26
    n-octane 5.23
    formamide 536.22
    cyclopentanone 238.81
    2-pentanone 150.71
    anisole 143.73
    cyclopentyl methyl ether 118.3
    gamma-butyrolactone 326.39
    1-methoxy-2-propanol 230.83
    pyridine 258.92
    3-pentanone 137.97
    furfural 332.71
    n-dodecane 5.4
    diethylene glycol 176.87
    diisopropyl ether 40.17
    tert-amyl alcohol 198.65
    acetylacetone 184.21
    n-hexadecane 6.01
    acetophenone 129.48
    methyl propionate 184.4
    isopentyl acetate 88.8
    trichloroethylene 505.05
    n-nonanol 47.7
    cyclohexanol 126.05
    benzyl alcohol 105.42
    2-ethylhexanol 54.83
    isooctanol 44.87
    dipropyl ether 52.94
    1,2-dichlorobenzene 115.09
    ethyl lactate 73.0
    propylene carbonate 162.4
    n-methylformamide 319.6
    2-pentanol 105.37
    n-pentane 9.58
    1-propoxy-2-propanol 102.37
    1-methoxy-2-propyl acetate 108.55
    2-(2-methoxypropoxy) propanol 142.28
    mesitylene 35.82
    ε-caprolactone 183.08
    p-cymene 31.22
    epichlorohydrin 377.1
    1,1,1-trichloroethane 257.31
    2-aminoethanol 167.11
    morpholine-4-carbaldehyde 343.52
    sulfolane 313.82
    2,2,4-trimethylpentane 10.68
    2-methyltetrahydrofuran 232.75
    n-hexyl acetate 89.65
    isooctane 7.83
    2-(2-butoxyethoxy)ethanol 179.4
    sec-butyl acetate 77.3
    tert-butyl acetate 121.03
    decalin 12.23
    glycerin 153.71
    diglyme 340.42
    acrylic acid 240.82
    isopropyl myristate 43.06
    n-butyric acid 193.97
    acetyl acetate 125.19
    di(2-ethylhexyl) phthalate 45.72
    ethyl propionate 109.8
    nitromethane 690.64
    1,2-diethoxyethane 136.85
    benzonitrile 128.21
    trioctyl phosphate 30.77
    1-bromopropane 114.4
    gamma-valerolactone 329.14
    n-decanol 36.52
    triethyl phosphate 53.65
    4-methyl-2-pentanol 62.28
    propionitrile 220.34
    vinylene carbonate 170.94
    1,1,2-trichlorotrifluoroethane 292.96
    DMS 111.18
    cumene 35.96
    2-octanol 36.79
    2-hexanone 115.47
    octyl acetate 52.67
    limonene 44.78
    1,2-dimethoxyethane 322.17
    ethyl orthosilicate 48.84
    tributyl phosphate 38.86
    diacetone alcohol 170.25
    N,N-dimethylaniline 94.29
    acrylonitrile 294.37
    aniline 107.8
    1,3-propanediol 200.25
    bromobenzene 98.52
    dibromomethane 240.45
    1,1,2,2-tetrachloroethane 333.75
    2-methyl-cyclohexyl acetate 74.61
    tetrabutyl urea 54.64
    diisobutyl methanol 39.22
    2-phenylethanol 90.09
    styrene 50.2
    dioctyl adipate 68.53
    dimethyl sulfate 168.16
    ethyl butyrate 82.12
    methyl lactate 105.45
    butyl lactate 55.54
    diethyl carbonate 72.97
    propanediol butyl ether 102.9
    triethyl orthoformate 62.76
    p-tert-butyltoluene 30.45
    methyl 4-tert-butylbenzoate 108.2
    morpholine 371.2
    tert-butylamine 127.63
    n-dodecanol 28.6
    dimethoxymethane 232.77
    ethylene carbonate 131.45
    cyrene 138.82
    2-ethoxyethyl acetate 104.06
    2-ethylhexyl acetate 67.94
    1,2,4-trichlorobenzene 140.13
    4-methylpyridine 180.73
    dibutyl ether 54.42
    2,6-dimethyl-4-heptanol 39.22
    DEF 182.49
    dimethyl isosorbide 208.41
    tetrachloroethylene 257.03
    eugenol 118.37
    triacetin 116.64
    span 80 94.9
    1,4-butanediol 87.06
    1,1-dichloroethane 258.49
    2-methyl-1-pentanol 101.35
    methyl formate 246.41
    2-methyl-1-butanol 131.79
    n-decane 7.92
    butyronitrile 151.83
    3,7-dimethyl-1-octanol 58.12
    1-chlorooctane 33.04
    1-chlorotetradecane 15.61
    n-nonane 6.99
    undecane 6.41
    tert-butylcyclohexane 12.11
    cyclooctane 5.3
    cyclopentanol 134.62
    tetrahydropyran 218.62
    tert-amyl methyl ether 111.37
    2,5,8-trioxanonane 262.69
    1-hexene 35.28
    2-isopropoxyethanol 150.62
    2,2,2-trifluoroethanol 191.05
    methyl butyrate 146.08

    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