4-Isobutyl-5-Methoxythiazole

  • Identifiers

    Molecular formula
    C8H13NOS

    SMILES
    CC(C)CC1=C(SC=N1)OC

  • Odor profile

    Fragrance
    Green 91.7%
    Vegetable 66.5%
    Earthy 48.02%
    Leafy 42.6%
    Nutty 42.6%
    Roasted 32.06%
    Tomato 31.25%
    Herbal 29.76%
    Fruity 28.98%
    Tropical 28.55%

     

    Flavor
    Green 84.18%
    Earthy 51.7%
    Pepper 45.03%
    Earth 40.43%
    Pea 38.03%
    Vegetable 36.12%
    Herbal 32.58%
    Galbanum 31.23%
    Metallic 30.09%
    Raw 29.35%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.9

    pKa est.
    7.12 (neutral)

    Molecular weight
    171.26 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    261°C

    Flash point

    • 82.56 ˚C est.

  • Synonyms

    • 4-Isobutyl-5-Methoxythiazole
    • SCHEMBL11577877
    • Thiazole, 4-isobutyl-5-methoxy
  • Applications

    4-Isobutyl-5-Methoxythiazole is a thiazole derivative with a distinctive fragrance and is commonly considered a fragrance ingredient. In practical use, it may serve as an odorant in perfumery, as a fragrance component in cosmetics and personal care products, as an aroma additive in flavor formulations when permitted, and as a fragrance or odorant additive in household products and cleaning agents; it can also be used as a functional intermediate or fragrance-related modifier in coatings, inks, and some polymer formulations, subject to processing conditions and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 149.78
    methanol 120.67
    isopropanol 145.57
    water 0.57
    ethyl acetate 136.96
    n-propanol 151.78
    acetone 277.12
    n-butanol 146.78
    acetonitrile 152.7
    DMF 490.45
    toluene 185.37
    isobutanol 137.55
    1,4-dioxane 310.99
    methyl acetate 185.3
    THF 521.48
    2-butanone 234.61
    n-pentanol 124.14
    sec-butanol 152.95
    n-hexane 11.46
    ethylene glycol 57.04
    NMP 401.95
    cyclohexane 48.93
    DMSO 415.97
    n-butyl acetate 182.64
    n-octanol 109.34
    chloroform 921.04
    n-propyl acetate 132.69
    acetic acid 218.4
    dichloromethane 755.31
    cyclohexanone 437.59
    propylene glycol 94.11
    isopropyl acetate 90.05
    DMAc 312.85
    2-ethoxyethanol 166.47
    isopentanol 119.61
    n-heptane 21.04
    ethyl formate 174.78
    1,2-dichloroethane 375.25
    n-hexanol 174.91
    2-methoxyethanol 241.91
    isobutyl acetate 101.95
    tetrachloromethane 151.72
    n-pentyl acetate 127.98
    transcutol 292.77
    n-heptanol 106.77
    ethylbenzene 101.49
    MIBK 104.72
    2-propoxyethanol 235.39
    tert-butanol 168.36
    MTBE 122.95
    2-butoxyethanol 157.96
    propionic acid 159.15
    o-xylene 131.48
    formic acid 46.89
    diethyl ether 88.26
    m-xylene 123.9
    p-xylene 152.53
    chlorobenzene 300.17
    dimethyl carbonate 78.93
    n-octane 14.73
    formamide 74.03
    cyclopentanone 484.38
    2-pentanone 159.89
    anisole 177.11
    cyclopentyl methyl ether 185.84
    gamma-butyrolactone 455.35
    1-methoxy-2-propanol 192.24
    pyridine 427.31
    3-pentanone 126.28
    furfural 503.11
    n-dodecane 16.82
    diethylene glycol 176.56
    diisopropyl ether 36.08
    tert-amyl alcohol 152.95
    acetylacetone 189.66
    n-hexadecane 19.56
    acetophenone 197.82
    methyl propionate 136.24
    isopentyl acetate 165.98
    trichloroethylene 879.37
    n-nonanol 98.36
    cyclohexanol 213.69
    benzyl alcohol 198.15
    2-ethylhexanol 117.84
    isooctanol 89.15
    dipropyl ether 84.55
    1,2-dichlorobenzene 272.19
    ethyl lactate 100.58
    propylene carbonate 317.15
    n-methylformamide 176.42
    2-pentanol 96.5
    n-pentane 14.36
    1-propoxy-2-propanol 173.83
    1-methoxy-2-propyl acetate 161.97
    2-(2-methoxypropoxy) propanol 149.86
    mesitylene 75.28
    ε-caprolactone 314.2
    p-cymene 93.54
    epichlorohydrin 485.85
    1,1,1-trichloroethane 436.01
    2-aminoethanol 97.02
    morpholine-4-carbaldehyde 383.15
    sulfolane 530.1
    2,2,4-trimethylpentane 16.4
    2-methyltetrahydrofuran 310.55
    n-hexyl acetate 168.14
    isooctane 11.4
    2-(2-butoxyethoxy)ethanol 183.77
    sec-butyl acetate 85.19
    tert-butyl acetate 107.63
    decalin 29.54
    glycerin 119.05
    diglyme 307.53
    acrylic acid 160.59
    isopropyl myristate 82.36
    n-butyric acid 205.51
    acetyl acetate 112.02
    di(2-ethylhexyl) phthalate 103.16
    ethyl propionate 97.16
    nitromethane 293.05
    1,2-diethoxyethane 132.13
    benzonitrile 298.95
    trioctyl phosphate 75.76
    1-bromopropane 193.58
    gamma-valerolactone 495.58
    n-decanol 81.18
    triethyl phosphate 84.9
    4-methyl-2-pentanol 61.24
    propionitrile 155.06
    vinylene carbonate 320.93
    1,1,2-trichlorotrifluoroethane 369.25
    DMS 132.67
    cumene 74.94
    2-octanol 85.75
    2-hexanone 151.33
    octyl acetate 109.7
    limonene 123.85
    1,2-dimethoxyethane 272.81
    ethyl orthosilicate 78.52
    tributyl phosphate 79.72
    diacetone alcohol 151.62
    N,N-dimethylaniline 127.3
    acrylonitrile 218.14
    aniline 199.21
    1,3-propanediol 136.36
    bromobenzene 332.77
    dibromomethane 500.16
    1,1,2,2-tetrachloroethane 654.86
    2-methyl-cyclohexyl acetate 152.18
    tetrabutyl urea 112.23
    diisobutyl methanol 70.16
    2-phenylethanol 201.51
    styrene 135.97
    dioctyl adipate 120.8
    dimethyl sulfate 141.3
    ethyl butyrate 127.87
    methyl lactate 107.21
    butyl lactate 122.07
    diethyl carbonate 105.91
    propanediol butyl ether 167.5
    triethyl orthoformate 100.06
    p-tert-butyltoluene 90.22
    methyl 4-tert-butylbenzoate 170.47
    morpholine 338.71
    tert-butylamine 106.16
    n-dodecanol 68.44
    dimethoxymethane 189.74
    ethylene carbonate 232.31
    cyrene 201.4
    2-ethoxyethyl acetate 154.56
    2-ethylhexyl acetate 140.71
    1,2,4-trichlorobenzene 344.78
    4-methylpyridine 372.17
    dibutyl ether 87.17
    2,6-dimethyl-4-heptanol 70.16
    DEF 175.06
    dimethyl isosorbide 265.97
    tetrachloroethylene 412.72
    eugenol 178.71
    triacetin 170.02
    span 80 164.61
    1,4-butanediol 87.51
    1,1-dichloroethane 407.06
    2-methyl-1-pentanol 118.58
    methyl formate 173.1
    2-methyl-1-butanol 127.89
    n-decane 23.59
    butyronitrile 183.89
    3,7-dimethyl-1-octanol 101.37
    1-chlorooctane 87.19
    1-chlorotetradecane 45.52
    n-nonane 21.5
    undecane 19.57
    tert-butylcyclohexane 25.82
    cyclooctane 16.62
    cyclopentanol 229.55
    tetrahydropyran 299.06
    tert-amyl methyl ether 101.19
    2,5,8-trioxanonane 232.52
    1-hexene 53.39
    2-isopropoxyethanol 128.1
    2,2,2-trifluoroethanol 85.5
    methyl butyrate 150.95

    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