2-Ethylbutanedioic acid

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  • Identifiers

    CAS number
    636-48-6

    Molecular formula
    C6H10O4

    SMILES
    CCC(CC(=O)O)C(=O)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Cheesy 57.52%
    Sour 56.09%
    Fruity 52.71%
    Buttery 35.84%
    Dairy 33.71%
    Milky 32.94%
    Odorless 32.37%
    Caramellic 30.96%
    Creamy 30.11%
    Fatty 29.56%

     

    Flavor
    Odorless 66.6%
    Sour 49.14%
    Acidic 36.03%
    Very mild 30.83%
    Cheese 26.69%
    Mild 26.11%
    Sweat 23.51%
    Yeast 23.31%
    Caramellic 21.86%
    Roquefort cheese 21.52%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    0.1

    pKa est.
    5.91 (weak acid)

    Molecular weight
    146.14 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    298°C

    Flash point

    • 154.45 ˚C est.

  • Synonyms

    • 2-Ethylbutanedioic acid
    • Ethylsuccinic acid
    • EINECS 211-259-6
    • DTXSID70979815
    • RefChem:471909
    • DTXCID50835268
    • 211-259-6
    • 2-ethylsuccinic acid
    • 636-48-6
    • Ethyl succinic acid
    • MFCD02258655
    • Athylbernsteinsaure
    • monoethylsuccinic acid
    • alpha-ethylsuccinic acid
    • SCHEMBL61510
    • SCHEMBL293785
    • SCHEMBL6629922
    • CHEBI:195363
    • AAA63648
    • AKOS000282821
    • AKOS016052746
    • SY518487
    • NS00042481
    • EN300-211722
    • H38004
    • Z1205493643
    • 636-48-6

  • Applications

    2-Ethylbutanedioic acid (CAS number: 636-48-6) is a dicarboxylic acid building block used in polymer manufacture, notably for aliphatic polyesters and alkyd resins employed in coatings and plastics. It serves as a monomer or crosslinking component in coating and ink formulations to improve film formation and chemical resistance. It functions as an intermediate in the synthesis of specialty polymers and adhesive resins. It may be used as a precursor in pharmaceutical or agrochemical synthesis and is evaluated for other specialty chemical applications, subject to local regulations and formulation requirements. These uses reflect its role as a reactive diacid in industrial manufacturing and formulation chemistries.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 229.87
    methanol 303.18
    isopropanol 178.96
    water 160.23
    ethyl acetate 21.55
    n-propanol 151.87
    acetone 112.32
    n-butanol 113.11
    acetonitrile 33.31
    DMF 658.45
    toluene 6.8
    isobutanol 92.78
    1,4-dioxane 163.77
    methyl acetate 32.91
    THF 288.51
    2-butanone 52.77
    n-pentanol 82.54
    sec-butanol 118.33
    n-hexane 3.87
    ethylene glycol 242.96
    NMP 214.62
    cyclohexane 1.69
    DMSO 627.4
    n-butyl acetate 20.23
    n-octanol 38.67
    chloroform 13.69
    n-propyl acetate 14.76
    acetic acid 76.18
    dichloromethane 20.98
    cyclohexanone 56.85
    propylene glycol 161.26
    isopropyl acetate 16.49
    DMAc 343.75
    2-ethoxyethanol 227.66
    isopentanol 95.83
    n-heptane 2.22
    ethyl formate 61.55
    1,2-dichloroethane 28.77
    n-hexanol 69.38
    2-methoxyethanol 390.15
    isobutyl acetate 6.99
    tetrachloromethane 6.84
    n-pentyl acetate 18.38
    transcutol 105.45
    n-heptanol 42.7
    ethylbenzene 9.28
    MIBK 33.78
    2-propoxyethanol 150.7
    tert-butanol 230.39
    MTBE 56.4
    2-butoxyethanol 92.46
    propionic acid 52.52
    o-xylene 12.0
    formic acid 190.98
    diethyl ether 32.49
    m-xylene 10.17
    p-xylene 10.27
    chlorobenzene 7.01
    dimethyl carbonate 21.64
    n-octane 1.88
    formamide 191.15
    cyclopentanone 110.61
    2-pentanone 47.31
    anisole 31.3
    cyclopentyl methyl ether 49.55
    gamma-butyrolactone 110.03
    1-methoxy-2-propanol 211.36
    pyridine 31.96
    3-pentanone 23.05
    furfural 113.26
    n-dodecane 1.89
    diethylene glycol 198.79
    diisopropyl ether 8.93
    tert-amyl alcohol 156.67
    acetylacetone 50.63
    n-hexadecane 2.0
    acetophenone 28.45
    methyl propionate 29.37
    isopentyl acetate 21.45
    trichloroethylene 26.92
    n-nonanol 34.44
    cyclohexanol 53.13
    benzyl alcohol 45.22
    2-ethylhexanol 28.09
    isooctanol 30.23
    dipropyl ether 15.13
    1,2-dichlorobenzene 10.34
    ethyl lactate 25.71
    propylene carbonate 42.08
    n-methylformamide 235.1
    2-pentanol 62.36
    n-pentane 2.62
    1-propoxy-2-propanol 74.68
    1-methoxy-2-propyl acetate 31.21
    2-(2-methoxypropoxy) propanol 67.15
    mesitylene 8.29
    ε-caprolactone 51.84
    p-cymene 7.34
    epichlorohydrin 132.12
    1,1,1-trichloroethane 12.52
    2-aminoethanol 272.24
    morpholine-4-carbaldehyde 224.66
    sulfolane 192.36
    2,2,4-trimethylpentane 2.21
    2-methyltetrahydrofuran 100.38
    n-hexyl acetate 29.25
    isooctane 1.75
    2-(2-butoxyethoxy)ethanol 93.55
    sec-butyl acetate 9.83
    tert-butyl acetate 27.39
    decalin 2.33
    glycerin 237.63
    diglyme 141.05
    acrylic acid 49.28
    isopropyl myristate 13.08
    n-butyric acid 54.47
    acetyl acetate 11.37
    di(2-ethylhexyl) phthalate 18.96
    ethyl propionate 14.92
    nitromethane 110.31
    1,2-diethoxyethane 29.24
    benzonitrile 21.87
    trioctyl phosphate 18.46
    1-bromopropane 13.1
    gamma-valerolactone 157.94
    n-decanol 26.17
    triethyl phosphate 13.63
    4-methyl-2-pentanol 36.38
    propionitrile 25.45
    vinylene carbonate 35.4
    1,1,2-trichlorotrifluoroethane 108.04
    DMS 16.32
    cumene 8.85
    2-octanol 26.8
    2-hexanone 25.89
    octyl acetate 19.37
    limonene 9.23
    1,2-dimethoxyethane 254.02
    ethyl orthosilicate 13.08
    tributyl phosphate 15.63
    diacetone alcohol 88.27
    N,N-dimethylaniline 33.82
    acrylonitrile 38.69
    aniline 20.64
    1,3-propanediol 251.96
    bromobenzene 5.2
    dibromomethane 13.52
    1,1,2,2-tetrachloroethane 32.43
    2-methyl-cyclohexyl acetate 17.07
    tetrabutyl urea 28.1
    diisobutyl methanol 17.31
    2-phenylethanol 38.36
    styrene 8.28
    dioctyl adipate 18.5
    dimethyl sulfate 61.78
    ethyl butyrate 13.92
    methyl lactate 53.62
    butyl lactate 26.43
    diethyl carbonate 9.91
    propanediol butyl ether 78.68
    triethyl orthoformate 13.04
    p-tert-butyltoluene 7.82
    methyl 4-tert-butylbenzoate 41.25
    morpholine 199.3
    tert-butylamine 77.9
    n-dodecanol 19.37
    dimethoxymethane 188.88
    ethylene carbonate 29.46
    cyrene 71.95
    2-ethoxyethyl acetate 23.47
    2-ethylhexyl acetate 14.47
    1,2,4-trichlorobenzene 11.64
    4-methylpyridine 37.68
    dibutyl ether 14.39
    2,6-dimethyl-4-heptanol 17.31
    DEF 80.94
    dimethyl isosorbide 86.17
    tetrachloroethylene 25.1
    eugenol 54.51
    triacetin 20.41
    span 80 50.16
    1,4-butanediol 142.04
    1,1-dichloroethane 15.31
    2-methyl-1-pentanol 67.68
    methyl formate 165.61
    2-methyl-1-butanol 83.15
    n-decane 2.83
    butyronitrile 35.92
    3,7-dimethyl-1-octanol 29.4
    1-chlorooctane 10.21
    1-chlorotetradecane 4.89
    n-nonane 2.52
    undecane 2.28
    tert-butylcyclohexane 2.7
    cyclooctane 1.19
    cyclopentanol 101.28
    tetrahydropyran 61.05
    tert-amyl methyl ether 45.06
    2,5,8-trioxanonane 114.6
    1-hexene 11.44
    2-isopropoxyethanol 106.13
    2,2,2-trifluoroethanol 54.6
    methyl butyrate 27.18

    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