2-Butyl-4-methylthiazole

Overview IFRA Request a quote

  • Identifiers

    CAS number
    76572-47-9

    Molecular formula
    C8H13NS

    SMILES
    CCCCC1=NC(=CS1)C

    Safety labels

  • Odor profile

    Fragrance
    Green 85.9%
    Vegetable 68.03%
    Nutty 54.06%
    Meaty 51.37%
    Roasted 48.46%
    Sulfurous 41.55%
    Tropical 40.17%
    Earthy 37.5%
    Fruity 36.27%
    Herbal 34.24%

     

    Flavor
    Green 86.09%
    Nutty 49.3%
    Earthy 48.86%
    Vegetable 48.38%
    Roasted 41.03%
    Pepper 40.66%
    Fatty 35.53%
    Raw 34.95%
    Herbal 32.82%
    Meaty 30.09%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.1

    pKa est.
    6.53 (neutral)

    Molecular weight
    155.26 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    215°C

    Flash point

    • 71.92 ˚C est.

  • Synonyms

    • 2-Butyl-4-methylthiazole
    • 2-Butyl-4-methyl-1,3-thiazole
    • 2-n-Butyl-4-methylthiazole
    • Thiazole, 2-butyl-4-methyl-
    • 76572-47-9
    • ZKM8C56KSC
    • 2-Butyl-4-methyl-Thiazole
    • SCHEMBL11570650
    • HVRMJTCTZVGJDO-UHFFFAOYSA-N
    • DTXSID501313435
    • 2-Butyl-4-methyl-1,3-thiazole #
    • AKOS026732169
    • Q63408746
    • 76572-47-9

  • Applications

    2-Butyl-4-methylthiazole (CAS 76572-47-9) is primarily considered a fragrance/odorant ingredient in perfumery, with potential to contribute aroma in flavor/fragrance formulations. It may be used as a synthetic intermediate for thiazole-containing compounds in industrial chemical synthesis. In cosmetics and personal care, it may function as a fragrance component. In household and cleaning products, it can serve as an odorant additive. In polymers/plastics and coatings/inks contexts, it may act as an intermediate or small additive depending on formulation and regulatory constraints. Other applications may be evaluated within local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 303.89
    methanol 292.43
    isopropanol 261.17
    water 0.32
    ethyl acetate 275.69
    n-propanol 276.05
    acetone 514.2
    n-butanol 318.57
    acetonitrile 216.4
    DMF 788.55
    toluene 434.4
    isobutanol 270.43
    1,4-dioxane 761.91
    methyl acetate 279.22
    THF 965.39
    2-butanone 395.02
    n-pentanol 274.72
    sec-butanol 269.94
    n-hexane 81.99
    ethylene glycol 76.85
    NMP 705.15
    cyclohexane 197.77
    DMSO 726.5
    n-butyl acetate 411.89
    n-octanol 214.03
    chloroform 1258.91
    n-propyl acetate 219.35
    acetic acid 243.62
    dichloromethane 888.72
    cyclohexanone 773.37
    propylene glycol 136.32
    isopropyl acetate 210.66
    DMAc 621.52
    2-ethoxyethanol 265.09
    isopentanol 304.84
    n-heptane 85.44
    ethyl formate 182.28
    1,2-dichloroethane 545.71
    n-hexanol 429.25
    2-methoxyethanol 402.03
    isobutyl acetate 204.17
    tetrachloromethane 245.77
    n-pentyl acetate 235.76
    transcutol 890.56
    n-heptanol 185.04
    ethylbenzene 180.36
    MIBK 227.95
    2-propoxyethanol 486.59
    tert-butanol 327.33
    MTBE 335.06
    2-butoxyethanol 256.35
    propionic acid 211.23
    o-xylene 227.63
    formic acid 51.45
    diethyl ether 335.01
    m-xylene 238.01
    p-xylene 248.68
    chlorobenzene 493.88
    dimethyl carbonate 123.53
    n-octane 38.68
    formamide 64.8
    cyclopentanone 742.49
    2-pentanone 341.65
    anisole 297.8
    cyclopentyl methyl ether 459.74
    gamma-butyrolactone 594.0
    1-methoxy-2-propanol 346.97
    pyridine 699.28
    3-pentanone 276.41
    furfural 596.18
    n-dodecane 36.42
    diethylene glycol 311.26
    diisopropyl ether 119.27
    tert-amyl alcohol 281.87
    acetylacetone 388.46
    n-hexadecane 42.15
    acetophenone 288.55
    methyl propionate 230.6
    isopentyl acetate 355.13
    trichloroethylene 1011.4
    n-nonanol 183.81
    cyclohexanol 402.0
    benzyl alcohol 272.7
    2-ethylhexanol 266.64
    isooctanol 155.1
    dipropyl ether 262.2
    1,2-dichlorobenzene 384.69
    ethyl lactate 114.98
    propylene carbonate 384.45
    n-methylformamide 189.4
    2-pentanol 217.41
    n-pentane 76.97
    1-propoxy-2-propanol 367.96
    1-methoxy-2-propyl acetate 349.44
    2-(2-methoxypropoxy) propanol 277.16
    mesitylene 154.34
    ε-caprolactone 514.66
    p-cymene 139.05
    epichlorohydrin 624.22
    1,1,1-trichloroethane 584.29
    2-aminoethanol 141.97
    morpholine-4-carbaldehyde 645.78
    sulfolane 758.66
    2,2,4-trimethylpentane 47.34
    2-methyltetrahydrofuran 675.24
    n-hexyl acetate 346.17
    isooctane 35.56
    2-(2-butoxyethoxy)ethanol 364.89
    sec-butyl acetate 170.53
    tert-butyl acetate 252.19
    decalin 86.34
    glycerin 182.23
    diglyme 583.35
    acrylic acid 190.42
    isopropyl myristate 158.43
    n-butyric acid 334.74
    acetyl acetate 222.2
    di(2-ethylhexyl) phthalate 170.79
    ethyl propionate 167.21
    nitromethane 298.4
    1,2-diethoxyethane 392.5
    benzonitrile 382.94
    trioctyl phosphate 118.87
    1-bromopropane 398.98
    gamma-valerolactone 734.15
    n-decanol 144.38
    triethyl phosphate 124.97
    4-methyl-2-pentanol 145.74
    propionitrile 246.36
    vinylene carbonate 366.07
    1,1,2-trichlorotrifluoroethane 437.47
    DMS 250.65
    cumene 127.35
    2-octanol 148.97
    2-hexanone 291.29
    octyl acetate 195.63
    limonene 230.13
    1,2-dimethoxyethane 529.9
    ethyl orthosilicate 128.49
    tributyl phosphate 141.83
    diacetone alcohol 269.5
    N,N-dimethylaniline 228.48
    acrylonitrile 258.05
    aniline 373.43
    1,3-propanediol 214.86
    bromobenzene 576.71
    dibromomethane 648.72
    1,1,2,2-tetrachloroethane 883.33
    2-methyl-cyclohexyl acetate 246.82
    tetrabutyl urea 192.61
    diisobutyl methanol 141.19
    2-phenylethanol 310.38
    styrene 256.7
    dioctyl adipate 201.17
    dimethyl sulfate 215.58
    ethyl butyrate 234.59
    methyl lactate 147.6
    butyl lactate 195.17
    diethyl carbonate 162.28
    propanediol butyl ether 282.58
    triethyl orthoformate 185.13
    p-tert-butyltoluene 143.42
    methyl 4-tert-butylbenzoate 235.56
    morpholine 727.77
    tert-butylamine 240.11
    n-dodecanol 119.06
    dimethoxymethane 374.48
    ethylene carbonate 313.46
    cyrene 270.15
    2-ethoxyethyl acetate 307.15
    2-ethylhexyl acetate 304.64
    1,2,4-trichlorobenzene 459.66
    4-methylpyridine 709.56
    dibutyl ether 259.61
    2,6-dimethyl-4-heptanol 141.19
    DEF 361.32
    dimethyl isosorbide 439.35
    tetrachloroethylene 564.88
    eugenol 260.1
    triacetin 290.41
    span 80 298.67
    1,4-butanediol 122.24
    1,1-dichloroethane 552.44
    2-methyl-1-pentanol 259.28
    methyl formate 163.27
    2-methyl-1-butanol 278.06
    n-decane 57.52
    butyronitrile 323.77
    3,7-dimethyl-1-octanol 207.81
    1-chlorooctane 174.62
    1-chlorotetradecane 84.88
    n-nonane 57.4
    undecane 43.95
    tert-butylcyclohexane 72.61
    cyclooctane 63.74
    cyclopentanol 385.44
    tetrahydropyran 773.67
    tert-amyl methyl ether 247.19
    2,5,8-trioxanonane 438.36
    1-hexene 244.05
    2-isopropoxyethanol 219.15
    2,2,2-trifluoroethanol 84.03
    methyl butyrate 239.37

    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