Ethylglyoxal

Overview IFRA Request a quote

  • Identifiers

    CAS number
    4417-81-6

    Molecular formula
    C4H6O2

    SMILES
    CCC(=O)C=O

    Safety labels

  • Odor profile

    Fragrance
    Caramellic 78.69%
    Buttery 61.45%
    Sweet 60.01%
    Pungent 55.5%
    Fatty 48.35%
    Burnt 47.87%
    Nutty 45.69%
    Ethereal 43.96%
    Creamy 41.88%
    Sharp 40.02%

     

    Flavor
    Sweet 59.83%
    Caramel 54.89%
    Pungent 52.73%
    Butter 45.07%
    Creamy 43.48%
    Buttery 39.38%
    Ethereal 36.33%
    Acidic 35.53%
    Brown 34.93%
    Almond 34.26%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.1

    pKa est.
    6.47 (neutral)

    Molecular weight
    86.09 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    140°C

    Flash point

    • 23.86 ˚C est.

  • Synonyms

    • Butanal, 2-oxo-
    • 4417-81-6
    • Ethylglyoxal
    • LB2X1PT6J3
    • RefChem:139158
    • 2-oxobutanal
    • 2-OXOBUTANALDEHYDE
    • 2-oxo-butyraldehyde
    • UNII-LB2X1PT6J3
    • SCHEMBL181354
    • SCHEMBL486512
    • SCHEMBL8805845
    • DTXSID6075063
    • SCHEMBL11052144
    • EAA41781
    • MFCD04974020
    • AKOS006229121
    • AB21438
    • SY398302
    • 4417-81-6

  • Applications

    Ethylglyoxal (CAS 4417-81-6) is a reactive building block in organic synthesis, commonly used as a precursor for pharmaceutical and agrochemical intermediates and for generating functionalized 1,2-dicarbonyl compounds. In industrial manufacturing it can serve as a crosslinking agent for polymers and as a reactive intermediate for coatings and adhesives, and it may function as a fragrance and flavor intermediate and as a starting point for dye and pigment syntheses, with use subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 117.28
    methanol 227.67
    isopropanol 65.96
    water 25.81
    ethyl acetate 145.67
    n-propanol 81.7
    acetone 265.35
    n-butanol 75.15
    acetonitrile 287.68
    DMF 351.14
    toluene 23.76
    isobutanol 60.86
    1,4-dioxane 189.65
    methyl acetate 241.7
    THF 161.63
    2-butanone 185.36
    n-pentanol 74.43
    sec-butanol 70.8
    n-hexane 9.58
    ethylene glycol 79.55
    NMP 481.31
    cyclohexane 11.5
    DMSO 465.41
    n-butyl acetate 134.67
    n-octanol 60.7
    chloroform 289.29
    n-propyl acetate 122.41
    acetic acid 723.56
    dichloromethane 357.13
    cyclohexanone 244.35
    propylene glycol 50.97
    isopropyl acetate 71.2
    DMAc 326.66
    2-ethoxyethanol 162.2
    isopentanol 72.03
    n-heptane 7.26
    ethyl formate 173.68
    1,2-dichloroethane 218.45
    n-hexanol 65.27
    2-methoxyethanol 217.48
    isobutyl acetate 57.61
    tetrachloromethane 51.04
    n-pentyl acetate 99.21
    transcutol 680.91
    n-heptanol 43.46
    ethylbenzene 35.0
    MIBK 67.38
    2-propoxyethanol 121.09
    tert-butanol 95.24
    MTBE 65.42
    2-butoxyethanol 94.4
    propionic acid 299.23
    o-xylene 40.76
    formic acid 409.22
    diethyl ether 59.18
    m-xylene 25.54
    p-xylene 57.19
    chlorobenzene 111.31
    dimethyl carbonate 64.5
    n-octane 5.39
    formamide 583.71
    cyclopentanone 271.65
    2-pentanone 109.15
    anisole 100.81
    cyclopentyl methyl ether 71.4
    gamma-butyrolactone 461.52
    1-methoxy-2-propanol 113.74
    pyridine 223.59
    3-pentanone 94.53
    furfural 494.19
    n-dodecane 5.58
    diethylene glycol 140.23
    diisopropyl ether 20.59
    tert-amyl alcohol 101.18
    acetylacetone 182.72
    n-hexadecane 6.2
    acetophenone 150.12
    methyl propionate 123.29
    isopentyl acetate 110.06
    trichloroethylene 515.25
    n-nonanol 51.16
    cyclohexanol 76.1
    benzyl alcohol 102.04
    2-ethylhexanol 52.07
    isooctanol 39.9
    dipropyl ether 37.07
    1,2-dichlorobenzene 142.33
    ethyl lactate 69.81
    propylene carbonate 234.66
    n-methylformamide 321.41
    2-pentanol 49.88
    n-pentane 6.58
    1-propoxy-2-propanol 85.54
    1-methoxy-2-propyl acetate 105.44
    2-(2-methoxypropoxy) propanol 147.76
    mesitylene 23.05
    ε-caprolactone 262.0
    p-cymene 31.62
    epichlorohydrin 311.85
    1,1,1-trichloroethane 170.99
    2-aminoethanol 99.81
    morpholine-4-carbaldehyde 388.55
    sulfolane 538.41
    2,2,4-trimethylpentane 7.87
    2-methyltetrahydrofuran 148.99
    n-hexyl acetate 144.62
    isooctane 4.75
    2-(2-butoxyethoxy)ethanol 187.07
    sec-butyl acetate 65.85
    tert-butyl acetate 80.97
    decalin 11.31
    glycerin 101.49
    diglyme 352.2
    acrylic acid 387.24
    isopropyl myristate 50.11
    n-butyric acid 225.55
    acetyl acetate 139.73
    di(2-ethylhexyl) phthalate 63.01
    ethyl propionate 91.81
    nitromethane 1054.8
    1,2-diethoxyethane 153.74
    benzonitrile 184.57
    trioctyl phosphate 42.64
    1-bromopropane 67.67
    gamma-valerolactone 375.98
    n-decanol 38.03
    triethyl phosphate 54.92
    4-methyl-2-pentanol 35.15
    propionitrile 137.87
    vinylene carbonate 266.11
    1,1,2-trichlorotrifluoroethane 336.83
    DMS 143.75
    cumene 33.05
    2-octanol 37.48
    2-hexanone 111.16
    octyl acetate 66.86
    limonene 43.99
    1,2-dimethoxyethane 218.67
    ethyl orthosilicate 45.87
    tributyl phosphate 62.54
    diacetone alcohol 119.79
    N,N-dimethylaniline 76.32
    acrylonitrile 281.43
    aniline 70.68
    1,3-propanediol 127.79
    bromobenzene 92.91
    dibromomethane 186.01
    1,1,2,2-tetrachloroethane 332.56
    2-methyl-cyclohexyl acetate 87.47
    tetrabutyl urea 79.83
    diisobutyl methanol 33.23
    2-phenylethanol 89.15
    styrene 48.89
    dioctyl adipate 90.57
    dimethyl sulfate 145.4
    ethyl butyrate 92.75
    methyl lactate 87.15
    butyl lactate 90.13
    diethyl carbonate 78.11
    propanediol butyl ether 120.24
    triethyl orthoformate 59.01
    p-tert-butyltoluene 27.09
    methyl 4-tert-butylbenzoate 117.56
    morpholine 188.57
    tert-butylamine 53.27
    n-dodecanol 29.14
    dimethoxymethane 104.74
    ethylene carbonate 176.7
    cyrene 129.4
    2-ethoxyethyl acetate 153.19
    2-ethylhexyl acetate 87.4
    1,2,4-trichlorobenzene 168.75
    4-methylpyridine 181.1
    dibutyl ether 63.29
    2,6-dimethyl-4-heptanol 33.23
    DEF 183.74
    dimethyl isosorbide 212.39
    tetrachloroethylene 275.08
    eugenol 134.58
    triacetin 177.2
    span 80 119.68
    1,4-butanediol 73.38
    1,1-dichloroethane 156.81
    2-methyl-1-pentanol 78.64
    methyl formate 271.07
    2-methyl-1-butanol 72.73
    n-decane 8.35
    butyronitrile 110.94
    3,7-dimethyl-1-octanol 61.97
    1-chlorooctane 37.76
    1-chlorotetradecane 15.84
    n-nonane 7.96
    undecane 6.67
    tert-butylcyclohexane 10.75
    cyclooctane 4.51
    cyclopentanol 90.67
    tetrahydropyran 104.05
    tert-amyl methyl ether 59.34
    2,5,8-trioxanonane 252.53
    1-hexene 33.62
    2-isopropoxyethanol 103.02
    2,2,2-trifluoroethanol 298.47
    methyl butyrate 153.45

    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