1-methyl-4,5-dihydro-3H-1,3-thiazole

  • Identifiers

    Molecular formula
    C4H9NS

    SMILES
    CS1=CNCC1

  • Odor profile

    Fragrance
    Roasted 46.94%
    Fishy 42.91%
    Meaty 42.8%
    Nutty 36.95%
    Garlic 35.44%
    Sulfurous 33.91%
    Cooked 32.89%
    Popcorn 31.59%
    Onion 28.59%
    Vegetable 27.36%

     

    Flavor
    Roasted 37.72%
    Amine 27.47%
    Ammoniacal 25.64%
    Shrimp 25.34%
    Bitter 25.11%
    Animal 24.34%
    Alkaline 23.99%
    Floral 23.73%
    Fishy 23.34%
    Taco 22.41%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.3

    pKa est.
    6.32 (neutral)

    Molecular weight
    103.19 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    317°C

    Flash point

    • 139.91 ˚C est.

  • Synonyms

    • SCHEMBL5145576
  • Applications

    1-methyl-4,5-dihydro-3H-1,3-thiazole is a versatile building block in the synthesis of heterocyclic compounds containing thiazole rings, used as an intermediate in medicinal chemistry to access thiazole-containing drug candidates; in pharmaceutical and agrochemical research, it may be developed as a precursor for diverse heterocyclic actives; in fragrance and flavor applications, the thiazoline-containing framework can be explored as an odorant or aroma precursor; in cosmetics and personal care, it can serve as a building block for fragrance ingredients and functional additives; in materials science and industrial chemistry, it is studied as part of libraries of heterocyclic building blocks for polymers, coatings, or catalyst systems.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 304.73
    methanol 433.45
    isopropanol 149.31
    water 69.55
    ethyl acetate 118.1
    n-propanol 215.34
    acetone 182.36
    n-butanol 205.83
    acetonitrile 145.71
    DMF 253.07
    toluene 37.64
    isobutanol 118.99
    1,4-dioxane 179.17
    methyl acetate 119.19
    THF 317.45
    2-butanone 126.16
    n-pentanol 112.83
    sec-butanol 121.91
    n-hexane 6.74
    ethylene glycol 180.63
    NMP 252.1
    cyclohexane 15.95
    DMSO 250.31
    n-butyl acetate 138.75
    n-octanol 75.1
    chloroform 335.14
    n-propyl acetate 74.64
    acetic acid 531.38
    dichloromethane 179.57
    cyclohexanone 179.32
    propylene glycol 173.0
    isopropyl acetate 63.29
    DMAc 199.99
    2-ethoxyethanol 209.51
    isopentanol 119.88
    n-heptane 18.22
    ethyl formate 147.27
    1,2-dichloroethane 86.87
    n-hexanol 171.69
    2-methoxyethanol 390.37
    isobutyl acetate 46.56
    tetrachloromethane 80.15
    n-pentyl acetate 81.52
    transcutol 384.11
    n-heptanol 107.9
    ethylbenzene 12.94
    MIBK 57.14
    2-propoxyethanol 284.68
    tert-butanol 119.34
    MTBE 56.7
    2-butoxyethanol 197.56
    propionic acid 249.98
    o-xylene 27.63
    formic acid 384.17
    diethyl ether 73.41
    m-xylene 31.21
    p-xylene 18.55
    chlorobenzene 69.94
    dimethyl carbonate 55.89
    n-octane 6.7
    formamide 349.04
    cyclopentanone 253.39
    2-pentanone 109.96
    anisole 46.76
    cyclopentyl methyl ether 129.4
    gamma-butyrolactone 290.52
    1-methoxy-2-propanol 243.51
    pyridine 168.07
    3-pentanone 75.75
    furfural 292.02
    n-dodecane 5.24
    diethylene glycol 276.58
    diisopropyl ether 22.6
    tert-amyl alcohol 103.05
    acetylacetone 103.91
    n-hexadecane 5.49
    acetophenone 56.0
    methyl propionate 100.79
    isopentyl acetate 85.11
    trichloroethylene 221.06
    n-nonanol 67.2
    cyclohexanol 118.98
    benzyl alcohol 79.43
    2-ethylhexanol 88.06
    isooctanol 68.68
    dipropyl ether 70.31
    1,2-dichlorobenzene 65.09
    ethyl lactate 64.64
    propylene carbonate 157.51
    n-methylformamide 262.43
    2-pentanol 99.72
    n-pentane 12.59
    1-propoxy-2-propanol 223.46
    1-methoxy-2-propyl acetate 113.76
    2-(2-methoxypropoxy) propanol 102.13
    mesitylene 19.77
    ε-caprolactone 155.92
    p-cymene 27.91
    epichlorohydrin 205.95
    1,1,1-trichloroethane 96.84
    2-aminoethanol 255.24
    morpholine-4-carbaldehyde 229.28
    sulfolane 249.84
    2,2,4-trimethylpentane 7.02
    2-methyltetrahydrofuran 173.2
    n-hexyl acetate 77.76
    isooctane 5.52
    2-(2-butoxyethoxy)ethanol 170.32
    sec-butyl acetate 39.3
    tert-butyl acetate 58.29
    decalin 6.17
    glycerin 297.79
    diglyme 267.8
    acrylic acid 259.64
    isopropyl myristate 27.9
    n-butyric acid 308.27
    acetyl acetate 86.22
    di(2-ethylhexyl) phthalate 42.89
    ethyl propionate 53.41
    nitromethane 395.87
    1,2-diethoxyethane 98.67
    benzonitrile 85.35
    trioctyl phosphate 33.05
    1-bromopropane 50.25
    gamma-valerolactone 286.08
    n-decanol 49.39
    triethyl phosphate 39.07
    4-methyl-2-pentanol 52.84
    propionitrile 111.03
    vinylene carbonate 162.51
    1,1,2-trichlorotrifluoroethane 271.28
    DMS 47.95
    cumene 12.53
    2-octanol 52.21
    2-hexanone 67.13
    octyl acetate 47.0
    limonene 42.52
    1,2-dimethoxyethane 153.05
    ethyl orthosilicate 39.43
    tributyl phosphate 34.49
    diacetone alcohol 106.44
    N,N-dimethylaniline 35.09
    acrylonitrile 151.78
    aniline 115.52
    1,3-propanediol 276.77
    bromobenzene 53.17
    dibromomethane 116.35
    1,1,2,2-tetrachloroethane 180.88
    2-methyl-cyclohexyl acetate 60.86
    tetrabutyl urea 45.91
    diisobutyl methanol 38.77
    2-phenylethanol 103.39
    styrene 18.06
    dioctyl adipate 43.57
    dimethyl sulfate 80.53
    ethyl butyrate 81.61
    methyl lactate 103.84
    butyl lactate 87.63
    diethyl carbonate 52.22
    propanediol butyl ether 150.66
    triethyl orthoformate 67.86
    p-tert-butyltoluene 26.97
    methyl 4-tert-butylbenzoate 72.56
    morpholine 230.97
    tert-butylamine 69.99
    n-dodecanol 37.1
    dimethoxymethane 138.97
    ethylene carbonate 128.12
    cyrene 98.96
    2-ethoxyethyl acetate 100.77
    2-ethylhexyl acetate 71.08
    1,2,4-trichlorobenzene 80.27
    4-methylpyridine 112.14
    dibutyl ether 45.9
    2,6-dimethyl-4-heptanol 38.77
    DEF 116.27
    dimethyl isosorbide 137.28
    tetrachloroethylene 154.93
    eugenol 92.36
    triacetin 80.47
    span 80 116.52
    1,4-butanediol 120.24
    1,1-dichloroethane 98.72
    2-methyl-1-pentanol 68.94
    methyl formate 170.55
    2-methyl-1-butanol 118.23
    n-decane 8.62
    butyronitrile 121.16
    3,7-dimethyl-1-octanol 55.15
    1-chlorooctane 27.67
    1-chlorotetradecane 11.41
    n-nonane 7.91
    undecane 6.37
    tert-butylcyclohexane 5.87
    cyclooctane 7.4
    cyclopentanol 156.59
    tetrahydropyran 138.39
    tert-amyl methyl ether 48.19
    2,5,8-trioxanonane 181.06
    1-hexene 20.14
    2-isopropoxyethanol 121.6
    2,2,2-trifluoroethanol 255.49
    methyl butyrate 73.39

    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