2-Isopropyl-4,5-dimethyloxazole

Overview IFRA Request a quote

  • Identifiers

    CAS number
    19519-45-0

    Molecular formula
    C8H13NO

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

  • Odor profile

    Fragrance
    Green 82.19%
    Earthy 66.19%
    Nutty 56.84%
    Vegetable 56.65%
    Roasted 52.72%
    Burnt 41.26%
    Musty 41.07%
    Potato 36.86%
    Leafy 33.7%
    Cocoa 33.2%

     

    Flavor
    Green 62.49%
    Earthy 55.43%
    Vegetable 42.64%
    Roasted 42.56%
    Burnt 40.78%
    Earth 39.19%
    Nutty 36.35%
    Pepper 31.54%
    Potato 31.53%
    Musty 31.09%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.3

    pKa est.
    6.68 (neutral)

    Molecular weight
    139.19 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point

    • 174.00 to 176.00 °C. @ 760.00 mm Hg

    Flash point

    • 55.02 ˚C est.

  • Synonyms

    • 2-ISOPROPYL-4,5-DIMETHYLOXAZOLE
    • 4,5-Dimethyl-2-isopropyloxazole
    • 19519-45-0
    • 4,5-Dimethyl-2-(1-methylethyl)oxazole
    • 4,5-dimethyl-2-propan-2-yl-1,3-oxazole
    • Oxazole, 4,5-dimethyl-2-(1-methylethyl)-
    • 2-iso-Propyl-4,5-dimethyloxazole
    • S9G44J4T9E
    • SCHEMBL2600750
    • DTXSID60173168
    • CHEBI:179650
    • OHMVVHYBMWXHSY-UHFFFAOYSA-N
    • 4,5-dimethyl-2-isopropyl oxazole
    • 2-Isopropyl-4,5-dimethyl-1,3-oxazole
    • 4,5-Dimethyl-2-(1-methylethyl)-Oxazole
    • 2-Isopropyl-4,5-dimethyl-1,3-oxazole #
    • 4,5-dimethyl-2-(propan-2-yl)-1,3-oxazole
    • 4,5-Dimethyl-2-(1-methylethyl)oxazole, 9CI
    • Q63398317

  • Applications

    2-Isopropyl-4,5-dimethyloxazole (CAS 19519-45-0) is primarily used as an intermediate in the synthesis of pharmaceutical and agrochemical compounds, and serves as a building block for other oxazole-containing structures in medicinal chemistry. It may also function as a precursor in polymer and specialty material development, supporting research and development programs. Additionally, the compound can be evaluated for use in coatings and inks as a functional moiety and is of interest as a heteroaromatic scaffold in materials science and related academic studies.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1549.93
    methanol 2214.21
    isopropanol 1453.19
    water 15.9
    ethyl acetate 1485.5
    n-propanol 1484.36
    acetone 2106.2
    n-butanol 1462.33
    acetonitrile 1262.37
    DMF 2869.0
    toluene 1064.31
    isobutanol 1404.22
    1,4-dioxane 2268.33
    methyl acetate 1686.21
    THF 2735.37
    2-butanone 2019.61
    n-pentanol 1112.7
    sec-butanol 1554.6
    n-hexane 531.29
    ethylene glycol 502.45
    NMP 2124.16
    cyclohexane 461.03
    DMSO 1762.17
    n-butyl acetate 1269.61
    n-octanol 1003.3
    chloroform 5101.66
    n-propyl acetate 1139.34
    acetic acid 923.77
    dichloromethane 4533.12
    cyclohexanone 2269.62
    propylene glycol 710.59
    isopropyl acetate 1123.53
    DMAc 2626.14
    2-ethoxyethanol 1489.77
    isopentanol 1378.36
    n-heptane 246.48
    ethyl formate 1249.97
    1,2-dichloroethane 2350.95
    n-hexanol 1110.05
    2-methoxyethanol 2191.68
    isobutyl acetate 868.39
    tetrachloromethane 1284.52
    n-pentyl acetate 1084.21
    transcutol 1991.76
    n-heptanol 784.74
    ethylbenzene 855.0
    MIBK 1085.77
    2-propoxyethanol 1563.54
    tert-butanol 1684.47
    MTBE 2111.34
    2-butoxyethanol 1172.33
    propionic acid 995.01
    o-xylene 897.2
    formic acid 414.74
    diethyl ether 1582.11
    m-xylene 847.61
    p-xylene 1320.57
    chlorobenzene 1481.85
    dimethyl carbonate 775.47
    n-octane 195.87
    formamide 524.52
    cyclopentanone 2438.24
    2-pentanone 1590.25
    anisole 1392.61
    cyclopentyl methyl ether 1647.56
    gamma-butyrolactone 2476.83
    1-methoxy-2-propanol 1653.38
    pyridine 1784.26
    3-pentanone 1366.11
    furfural 2424.57
    n-dodecane 173.88
    diethylene glycol 978.66
    diisopropyl ether 729.14
    tert-amyl alcohol 1725.45
    acetylacetone 1642.81
    n-hexadecane 194.79
    acetophenone 1291.54
    methyl propionate 1309.26
    isopentyl acetate 1196.75
    trichloroethylene 4121.01
    n-nonanol 810.88
    cyclohexanol 1250.6
    benzyl alcohol 1002.97
    2-ethylhexanol 780.33
    isooctanol 674.46
    dipropyl ether 871.36
    1,2-dichlorobenzene 1467.04
    ethyl lactate 593.58
    propylene carbonate 1620.87
    n-methylformamide 1282.72
    2-pentanol 1149.74
    n-pentane 392.42
    1-propoxy-2-propanol 1122.71
    1-methoxy-2-propyl acetate 1008.93
    2-(2-methoxypropoxy) propanol 812.88
    mesitylene 597.8
    ε-caprolactone 1933.5
    p-cymene 489.55
    epichlorohydrin 2913.07
    1,1,1-trichloroethane 2861.59
    2-aminoethanol 817.62
    morpholine-4-carbaldehyde 2360.77
    sulfolane 2412.66
    2,2,4-trimethylpentane 323.9
    2-methyltetrahydrofuran 2351.38
    n-hexyl acetate 1583.53
    isooctane 223.21
    2-(2-butoxyethoxy)ethanol 1065.79
    sec-butyl acetate 897.44
    tert-butyl acetate 1201.51
    decalin 342.08
    glycerin 763.67
    diglyme 1982.07
    acrylic acid 861.86
    isopropyl myristate 585.08
    n-butyric acid 1354.68
    acetyl acetate 1005.43
    di(2-ethylhexyl) phthalate 516.61
    ethyl propionate 1092.97
    nitromethane 1708.54
    1,2-diethoxyethane 1197.54
    benzonitrile 1424.15
    trioctyl phosphate 415.61
    1-bromopropane 1761.32
    gamma-valerolactone 2885.23
    n-decanol 588.19
    triethyl phosphate 454.2
    4-methyl-2-pentanol 743.7
    propionitrile 1281.43
    vinylene carbonate 1619.72
    1,1,2-trichlorotrifluoroethane 1787.94
    DMS 1083.34
    cumene 663.62
    2-octanol 766.95
    2-hexanone 1332.75
    octyl acetate 757.76
    limonene 641.21
    1,2-dimethoxyethane 2452.4
    ethyl orthosilicate 460.93
    tributyl phosphate 507.04
    diacetone alcohol 1127.78
    N,N-dimethylaniline 1120.66
    acrylonitrile 1482.96
    aniline 1058.39
    1,3-propanediol 1139.03
    bromobenzene 1756.51
    dibromomethane 3049.92
    1,1,2,2-tetrachloroethane 3592.96
    2-methyl-cyclohexyl acetate 737.39
    tetrabutyl urea 617.9
    diisobutyl methanol 462.11
    2-phenylethanol 909.62
    styrene 963.51
    dioctyl adipate 698.09
    dimethyl sulfate 1144.26
    ethyl butyrate 925.39
    methyl lactate 701.63
    butyl lactate 791.4
    diethyl carbonate 645.71
    propanediol butyl ether 1088.26
    triethyl orthoformate 623.34
    p-tert-butyltoluene 492.2
    methyl 4-tert-butylbenzoate 1049.52
    morpholine 2217.71
    tert-butylamine 1365.87
    n-dodecanol 448.81
    dimethoxymethane 1873.42
    ethylene carbonate 1291.36
    cyrene 785.52
    2-ethoxyethyl acetate 1134.19
    2-ethylhexyl acetate 1003.33
    1,2,4-trichlorobenzene 1701.85
    4-methylpyridine 2240.05
    dibutyl ether 1075.79
    2,6-dimethyl-4-heptanol 462.11
    DEF 1898.47
    dimethyl isosorbide 1196.38
    tetrachloroethylene 2404.32
    eugenol 973.77
    triacetin 1035.47
    span 80 783.82
    1,4-butanediol 677.29
    1,1-dichloroethane 2746.4
    2-methyl-1-pentanol 1152.91
    methyl formate 1217.33
    2-methyl-1-butanol 1444.04
    n-decane 279.43
    butyronitrile 1474.85
    3,7-dimethyl-1-octanol 862.34
    1-chlorooctane 849.25
    1-chlorotetradecane 356.36
    n-nonane 288.82
    undecane 210.99
    tert-butylcyclohexane 376.96
    cyclooctane 220.92
    cyclopentanol 1426.01
    tetrahydropyran 1963.73
    tert-amyl methyl ether 1727.75
    2,5,8-trioxanonane 1239.66
    1-hexene 1132.93
    2-isopropoxyethanol 1095.91
    2,2,2-trifluoroethanol 518.46
    methyl butyrate 1496.15

    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