2-methylbutanethioic S-acid

  • Identifiers

    Molecular formula
    C5H10OS

    SMILES
    CCC(C)C(=O)S

  • Odor profile

    Fragrance
    Fruity 87.95%
    Sulfurous 80.5%
    Cheesy 78.11%
    Tropical 70.6%
    Ripe 41.14%
    Vegetable 36.91%
    Meaty 36.2%
    Dairy 35.44%
    Roasted 31.66%
    Savory 29.18%

     

    Flavor
    Cheese 49.95%
    Sour 31.79%
    Acidic 30.83%
    Sulfury 29.46%
    Pungent 27.73%
    Sulfurous 27.49%
    Sweat 26.72%
    Onion 26.67%
    Animal 25.22%
    Cheesy 24.75%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.7

    pKa est.
    8.3 (weak base)

    Molecular weight
    118.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    147°C

    Flash point

    • 50.78 ˚C est.

  • Synonyms

    • SCHEMBL877977
  • Applications

    2-methylbutanethioic S-acid may serve as an organic-synthesis intermediate for forming thioesters and other sulfur-containing derivatives; may be evaluated as a sulfur-containing building block for fragrance and flavor compounds; may function as a reagent in polymer and plastics chemistry to introduce sulfur functionalities; may act as a synthetic intermediate in pharmaceutical research for sulfur-containing molecules; and is commonly used as a general research reagent in organosulfur chemistry, with actual applications dependent on local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 298.69
    methanol 432.13
    isopropanol 186.32
    water 7.1
    ethyl acetate 131.36
    n-propanol 192.45
    acetone 257.0
    n-butanol 176.97
    acetonitrile 172.86
    DMF 249.35
    toluene 42.21
    isobutanol 134.92
    1,4-dioxane 315.38
    methyl acetate 151.04
    THF 383.17
    2-butanone 182.74
    n-pentanol 149.59
    sec-butanol 142.24
    n-hexane 20.51
    ethylene glycol 88.52
    NMP 363.27
    cyclohexane 18.33
    DMSO 321.65
    n-butyl acetate 171.39
    n-octanol 96.63
    chloroform 327.98
    n-propyl acetate 115.3
    acetic acid 404.68
    dichloromethane 260.26
    cyclohexanone 274.09
    propylene glycol 82.53
    isopropyl acetate 93.21
    DMAc 193.92
    2-ethoxyethanol 207.27
    isopentanol 147.65
    n-heptane 14.96
    ethyl formate 116.17
    1,2-dichloroethane 156.25
    n-hexanol 172.52
    2-methoxyethanol 285.59
    isobutyl acetate 82.17
    tetrachloromethane 85.25
    n-pentyl acetate 129.51
    transcutol 753.15
    n-heptanol 95.84
    ethylbenzene 39.68
    MIBK 108.42
    2-propoxyethanol 242.16
    tert-butanol 225.88
    MTBE 133.49
    2-butoxyethanol 165.3
    propionic acid 185.29
    o-xylene 47.35
    formic acid 190.85
    diethyl ether 125.46
    m-xylene 44.78
    p-xylene 61.75
    chlorobenzene 115.07
    dimethyl carbonate 34.89
    n-octane 8.82
    formamide 207.4
    cyclopentanone 334.84
    2-pentanone 149.51
    anisole 106.62
    cyclopentyl methyl ether 146.74
    gamma-butyrolactone 356.18
    1-methoxy-2-propanol 182.47
    pyridine 180.44
    3-pentanone 95.03
    furfural 352.28
    n-dodecane 7.72
    diethylene glycol 214.68
    diisopropyl ether 45.95
    tert-amyl alcohol 171.63
    acetylacetone 191.67
    n-hexadecane 8.53
    acetophenone 121.19
    methyl propionate 88.24
    isopentyl acetate 155.86
    trichloroethylene 341.01
    n-nonanol 85.05
    cyclohexanol 139.66
    benzyl alcohol 106.03
    2-ethylhexanol 101.58
    isooctanol 79.45
    dipropyl ether 76.4
    1,2-dichlorobenzene 123.4
    ethyl lactate 62.73
    propylene carbonate 183.28
    n-methylformamide 160.6
    2-pentanol 104.12
    n-pentane 16.66
    1-propoxy-2-propanol 165.89
    1-methoxy-2-propyl acetate 154.25
    2-(2-methoxypropoxy) propanol 178.91
    mesitylene 36.93
    ε-caprolactone 237.9
    p-cymene 45.69
    epichlorohydrin 283.41
    1,1,1-trichloroethane 188.14
    2-aminoethanol 148.3
    morpholine-4-carbaldehyde 312.58
    sulfolane 411.07
    2,2,4-trimethylpentane 13.12
    2-methyltetrahydrofuran 282.54
    n-hexyl acetate 177.32
    isooctane 10.41
    2-(2-butoxyethoxy)ethanol 248.76
    sec-butyl acetate 85.12
    tert-butyl acetate 127.59
    decalin 15.89
    glycerin 123.09
    diglyme 359.65
    acrylic acid 168.86
    isopropyl myristate 68.66
    n-butyric acid 208.53
    acetyl acetate 105.4
    di(2-ethylhexyl) phthalate 81.57
    ethyl propionate 81.23
    nitromethane 386.29
    1,2-diethoxyethane 200.72
    benzonitrile 148.26
    trioctyl phosphate 58.06
    1-bromopropane 96.57
    gamma-valerolactone 378.06
    n-decanol 61.2
    triethyl phosphate 60.17
    4-methyl-2-pentanol 72.53
    propionitrile 112.45
    vinylene carbonate 157.55
    1,1,2-trichlorotrifluoroethane 228.13
    DMS 111.13
    cumene 40.17
    2-octanol 70.4
    2-hexanone 149.91
    octyl acetate 87.56
    limonene 68.11
    1,2-dimethoxyethane 249.56
    ethyl orthosilicate 62.88
    tributyl phosphate 72.57
    diacetone alcohol 164.27
    N,N-dimethylaniline 80.87
    acrylonitrile 144.51
    aniline 95.21
    1,3-propanediol 189.75
    bromobenzene 94.96
    dibromomethane 186.24
    1,1,2,2-tetrachloroethane 245.91
    2-methyl-cyclohexyl acetate 109.93
    tetrabutyl urea 88.08
    diisobutyl methanol 63.26
    2-phenylethanol 132.47
    styrene 51.06
    dioctyl adipate 103.79
    dimethyl sulfate 73.82
    ethyl butyrate 103.03
    methyl lactate 65.18
    butyl lactate 108.48
    diethyl carbonate 67.59
    propanediol butyl ether 167.94
    triethyl orthoformate 79.89
    p-tert-butyltoluene 43.95
    methyl 4-tert-butylbenzoate 131.93
    morpholine 297.86
    tert-butylamine 139.65
    n-dodecanol 46.17
    dimethoxymethane 126.06
    ethylene carbonate 122.14
    cyrene 161.2
    2-ethoxyethyl acetate 180.54
    2-ethylhexyl acetate 120.4
    1,2,4-trichlorobenzene 158.39
    4-methylpyridine 183.07
    dibutyl ether 89.55
    2,6-dimethyl-4-heptanol 63.26
    DEF 136.25
    dimethyl isosorbide 254.35
    tetrachloroethylene 197.26
    eugenol 149.23
    triacetin 161.49
    span 80 169.91
    1,4-butanediol 101.69
    1,1-dichloroethane 170.78
    2-methyl-1-pentanol 138.94
    methyl formate 121.55
    2-methyl-1-butanol 130.1
    n-decane 12.81
    butyronitrile 134.64
    3,7-dimethyl-1-octanol 94.02
    1-chlorooctane 54.82
    1-chlorotetradecane 22.75
    n-nonane 12.43
    undecane 9.61
    tert-butylcyclohexane 18.75
    cyclooctane 7.02
    cyclopentanol 166.63
    tetrahydropyran 230.97
    tert-amyl methyl ether 99.05
    2,5,8-trioxanonane 264.2
    1-hexene 69.37
    2-isopropoxyethanol 149.07
    2,2,2-trifluoroethanol 131.63
    methyl butyrate 119.71

    Scent© AI

1 of 4
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