5-Ethyl-2-furaldehyde

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  • Identifiers

    CAS number
    23074-10-4

    Molecular formula
    C7H8O2

    SMILES
    CCC1=CC=C(O1)C=O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Sweet 81.6%
    Caramellic 68.94%
    Nutty 57.86%
    Spicy 56.52%
    Fruity 50.54%
    Almond 44.65%
    Green 38.26%
    Musty 37.85%
    Burnt 37.39%
    Hay 37.26%

     

    Flavor
    Sweet 55.82%
    Caramel 52.97%
    Almond 48.32%
    Woody 42.13%
    Fatty 37.26%
    Spice 34.38%
    Musty 31.81%
    Creamy 30.84%
    Coconut 29.8%
    Oily 29.58%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.1

    pKa est.
    6.27 (neutral)

    Molecular weight
    124.14 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    200°C

    Flash point

    • 57.07 ˚C est.

  • Synonyms

    • 5-Ethyl-2-furaldehyde
    • 5-ethylfuran-2-carbaldehyde
    • 23074-10-4
    • 2-Furancarboxaldehyde, 5-ethyl-
    • 5-Ethylfurfural
    • EINECS 245-411-8
    • DTXSID80177643
    • RefChem:102546
    • DTXCID40100134
    • 245-411-8
    • InChI=1/C7H8O2/c1-2-6-3-4-7(5-8)9-6/h3-5H,2H2,1H
    • XADGZBXFWQHBDB-UHFFFAOYSA-N
    • 5-Ethyl-furan-2-carbaldehyde
    • MFCD00030605
    • 5-ethylfuran-2-carboxaldehyde
    • 2-Furancarboxaldehyde,5-ethyl-
    • 5-ethylfurfuraldehyde
    • YYH2MYA6S7
    • 2-Furaldehyde, 5-ethyl-
    • 5-ethyl-2-furancarboxaldehyde
    • SCHEMBL157526
    • orb3023517
    • 5-Ethyl-2-furaldehyde, 98%
    • ALBB-021332
    • GEO-01349
    • SBB010056
    • AKOS000295601
    • FE03707
    • SB61437
    • AS-47636
    • DB-013053
    • CS-0204240
    • NS00027343
    • ST50293882
    • EN300-51261
    • F14735
    • Z274774406
    • 23074-10-4

  • Applications

    5-Ethyl-2-furaldehyde, CAS 23074-10-4, is primarily used as an intermediate in the synthesis of fragrance and flavor compounds for the fragrance and flavor industries; it serves as a building block for furan-derived compounds used as high-quality aroma ingredients. It also acts as a building block for polymers and plastics based on furan, with applications in coatings and finishes, as well as in furan-based resins used for adhesives and related formulations. Additionally, it may serve as a precursor for other functionalized furan derivatives in the industrial chemical supply chain, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 464.61
    methanol 816.54
    isopropanol 262.83
    water 2.83
    ethyl acetate 826.49
    n-propanol 294.32
    acetone 1533.87
    n-butanol 262.1
    acetonitrile 1107.95
    DMF 1653.54
    toluene 286.83
    isobutanol 203.67
    1,4-dioxane 988.21
    methyl acetate 1022.87
    THF 1452.29
    2-butanone 936.02
    n-pentanol 177.94
    sec-butanol 216.82
    n-hexane 26.42
    ethylene glycol 161.86
    NMP 1474.67
    cyclohexane 57.58
    DMSO 2328.96
    n-butyl acetate 447.72
    n-octanol 122.67
    chloroform 1486.13
    n-propyl acetate 429.72
    acetic acid 616.4
    dichloromethane 2588.16
    cyclohexanone 1050.05
    propylene glycol 115.03
    isopropyl acetate 352.3
    DMAc 1061.6
    2-ethoxyethanol 395.94
    isopentanol 233.02
    n-heptane 27.3
    ethyl formate 550.68
    1,2-dichloroethane 1592.55
    n-hexanol 194.68
    2-methoxyethanol 687.37
    isobutyl acetate 233.91
    tetrachloromethane 203.79
    n-pentyl acetate 234.54
    transcutol 1396.36
    n-heptanol 92.31
    ethylbenzene 154.82
    MIBK 314.87
    2-propoxyethanol 414.94
    tert-butanol 353.72
    MTBE 418.38
    2-butoxyethanol 213.92
    propionic acid 446.33
    o-xylene 199.13
    formic acid 289.04
    diethyl ether 462.31
    m-xylene 192.83
    p-xylene 213.14
    chlorobenzene 597.34
    dimethyl carbonate 379.16
    n-octane 15.78
    formamide 598.05
    cyclopentanone 1563.23
    2-pentanone 617.71
    anisole 439.28
    cyclopentyl methyl ether 489.89
    gamma-butyrolactone 1872.35
    1-methoxy-2-propanol 413.5
    pyridine 986.34
    3-pentanone 494.05
    furfural 1324.46
    n-dodecane 18.21
    diethylene glycol 396.61
    diisopropyl ether 118.7
    tert-amyl alcohol 277.0
    acetylacetone 828.54
    n-hexadecane 21.59
    acetophenone 410.89
    methyl propionate 674.63
    isopentyl acetate 352.31
    trichloroethylene 2592.74
    n-nonanol 104.08
    cyclohexanol 249.27
    benzyl alcohol 278.1
    2-ethylhexanol 132.13
    isooctanol 85.01
    dipropyl ether 176.88
    1,2-dichlorobenzene 550.55
    ethyl lactate 171.69
    propylene carbonate 742.67
    n-methylformamide 839.74
    2-pentanol 162.21
    n-pentane 26.34
    1-propoxy-2-propanol 261.99
    1-methoxy-2-propyl acetate 389.06
    2-(2-methoxypropoxy) propanol 298.4
    mesitylene 133.66
    ε-caprolactone 787.98
    p-cymene 105.69
    epichlorohydrin 1905.7
    1,1,1-trichloroethane 1023.17
    2-aminoethanol 207.55
    morpholine-4-carbaldehyde 1117.43
    sulfolane 1944.93
    2,2,4-trimethylpentane 26.11
    2-methyltetrahydrofuran 903.93
    n-hexyl acetate 355.32
    isooctane 21.8
    2-(2-butoxyethoxy)ethanol 378.82
    sec-butyl acetate 244.24
    tert-butyl acetate 373.67
    decalin 42.48
    glycerin 185.91
    diglyme 760.98
    acrylic acid 458.75
    isopropyl myristate 138.5
    n-butyric acid 483.25
    acetyl acetate 501.61
    di(2-ethylhexyl) phthalate 139.35
    ethyl propionate 360.33
    nitromethane 1811.3
    1,2-diethoxyethane 457.6
    benzonitrile 515.87
    trioctyl phosphate 95.53
    1-bromopropane 557.35
    gamma-valerolactone 1416.98
    n-decanol 81.83
    triethyl phosphate 151.69
    4-methyl-2-pentanol 107.85
    propionitrile 592.08
    vinylene carbonate 721.43
    1,1,2-trichlorotrifluoroethane 748.97
    DMS 465.61
    cumene 107.14
    2-octanol 79.59
    2-hexanone 379.75
    octyl acetate 170.91
    limonene 148.56
    1,2-dimethoxyethane 749.25
    ethyl orthosilicate 133.03
    tributyl phosphate 133.83
    diacetone alcohol 364.37
    N,N-dimethylaniline 242.33
    acrylonitrile 941.59
    aniline 324.14
    1,3-propanediol 289.43
    bromobenzene 701.55
    dibromomethane 1265.82
    1,1,2,2-tetrachloroethane 1405.6
    2-methyl-cyclohexyl acetate 220.3
    tetrabutyl urea 172.87
    diisobutyl methanol 92.36
    2-phenylethanol 258.13
    styrene 232.71
    dioctyl adipate 202.62
    dimethyl sulfate 638.33
    ethyl butyrate 298.5
    methyl lactate 237.5
    butyl lactate 163.96
    diethyl carbonate 228.97
    propanediol butyl ether 213.6
    triethyl orthoformate 176.46
    p-tert-butyltoluene 100.74
    methyl 4-tert-butylbenzoate 279.75
    morpholine 938.37
    tert-butylamine 197.32
    n-dodecanol 66.53
    dimethoxymethane 818.04
    ethylene carbonate 548.92
    cyrene 295.21
    2-ethoxyethyl acetate 389.64
    2-ethylhexyl acetate 268.88
    1,2,4-trichlorobenzene 602.13
    4-methylpyridine 874.45
    dibutyl ether 194.92
    2,6-dimethyl-4-heptanol 92.36
    DEF 764.92
    dimethyl isosorbide 532.06
    tetrachloroethylene 864.23
    eugenol 278.38
    triacetin 390.54
    span 80 207.72
    1,4-butanediol 128.16
    1,1-dichloroethane 1185.61
    2-methyl-1-pentanol 183.8
    methyl formate 829.35
    2-methyl-1-butanol 212.78
    n-decane 25.64
    butyronitrile 510.12
    3,7-dimethyl-1-octanol 137.34
    1-chlorooctane 112.71
    1-chlorotetradecane 52.54
    n-nonane 24.98
    undecane 21.36
    tert-butylcyclohexane 38.09
    cyclooctane 20.77
    cyclopentanol 355.0
    tetrahydropyran 743.87
    tert-amyl methyl ether 278.8
    2,5,8-trioxanonane 525.75
    1-hexene 106.63
    2-isopropoxyethanol 270.17
    2,2,2-trifluoroethanol 245.64
    methyl butyrate 512.64

    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