2,5-Dimethyl-3,6-di(propan-2-yl)pyrazine

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  • Identifiers

    CAS number
    30590-92-2

    Molecular formula
    C12H20N2

    SMILES
    CC1=C(N=C(C(=N1)C(C)C)C)C(C)C

    Safety labels

  • Odor profile

    Fragrance
    Earthy 56.28%
    Nutty 49.97%
    Green 45.94%
    Roasted 45.71%
    Burnt 45.09%
    Woody 40.23%
    Musty 38.76%
    Cocoa 35.83%
    Coffee 35.26%
    Vegetable 35.09%

     

    Flavor
    Earthy 43.45%
    Musty 38.01%
    Earth 36.78%
    Green 34.15%
    Burnt 31.97%
    Roasted 31.53%
    Hazelnut 29.86%
    Pepper 27.42%
    Pea 27.14%
    Meaty 26.91%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.9

    pKa est.
    5.42 (weak acid)

    Molecular weight
    192.3 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    246°C

    Flash point

    • 97.81 ˚C est.

  • Synonyms

    • 30590-92-2
    • 2,5-Dimethyl-3,6-di(propan-2-yl)pyrazine
    • DTXSID20536755
    • RefChem:247577
    • DTXCID50487544
    • 2,5-Dimethyl-3,6-diisopropylpyrazine
    • SCHEMBL10414406
    • 2,5-Dimethyl-3,6-diisopropyl-pyrazine
    • 2,5 -Dimethyl-3,6-diisopropyl-pyrazine
    • 30590-92-2

  • Applications

    2,5-Dimethyl-3,6-di(propan-2-yl)pyrazine (CAS 30590-92-2) is primarily used as an aroma-active intermediate and odorant in fragrance and flavor applications, with potential as a building block in cosmetics/personal care formulations and household cleaning products to shape scent profiles; it can serve as a component in coatings and inks where a defined aroma contribution is desired; in industrial manufacturing and polymer chemistry, it may be used as a precursor for fragrance-containing polymers or other specialty chemicals; overall, its use is typically formulation- and regulation-dependent.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1685.2
    methanol 1558.9
    isopropanol 1883.87
    water 5.07
    ethyl acetate 3302.63
    n-propanol 2154.27
    acetone 3597.04
    n-butanol 2520.77
    acetonitrile 2235.21
    DMF 3390.6
    toluene 3826.9
    isobutanol 2459.69
    1,4-dioxane 5109.34
    methyl acetate 2814.05
    THF 7110.2
    2-butanone 3469.3
    n-pentanol 1928.35
    sec-butanol 2498.29
    n-hexane 3218.77
    ethylene glycol 273.34
    NMP 3845.86
    cyclohexane 4195.12
    DMSO 1704.15
    n-butyl acetate 3876.75
    n-octanol 1743.52
    chloroform 10254.37
    n-propyl acetate 2268.37
    acetic acid 1939.29
    dichloromethane 7463.65
    cyclohexanone 6735.17
    propylene glycol 459.74
    isopropyl acetate 2450.94
    DMAc 2937.32
    2-ethoxyethanol 1472.09
    isopentanol 2558.35
    n-heptane 1541.64
    ethyl formate 2081.83
    1,2-dichloroethane 5177.45
    n-hexanol 3239.7
    2-methoxyethanol 2193.44
    isobutyl acetate 1909.96
    tetrachloromethane 3410.33
    n-pentyl acetate 2507.74
    transcutol 2540.85
    n-heptanol 1548.3
    ethylbenzene 2111.01
    MIBK 2190.81
    2-propoxyethanol 2716.58
    tert-butanol 2397.66
    MTBE 4201.68
    2-butoxyethanol 1633.64
    propionic acid 1818.92
    o-xylene 2366.13
    formic acid 464.72
    diethyl ether 5127.86
    m-xylene 2560.17
    p-xylene 2998.23
    chlorobenzene 3664.99
    dimethyl carbonate 1381.89
    n-octane 795.56
    formamide 560.9
    cyclopentanone 5712.46
    2-pentanone 3326.41
    anisole 1863.45
    cyclopentyl methyl ether 5703.36
    gamma-butyrolactone 5473.9
    1-methoxy-2-propanol 1855.77
    pyridine 4212.36
    3-pentanone 3269.52
    furfural 3502.65
    n-dodecane 380.76
    diethylene glycol 1065.46
    diisopropyl ether 2192.59
    tert-amyl alcohol 2730.83
    acetylacetone 2646.5
    n-hexadecane 457.04
    acetophenone 1638.07
    methyl propionate 2744.81
    isopentyl acetate 3368.22
    trichloroethylene 8559.93
    n-nonanol 1390.64
    cyclohexanol 4288.93
    benzyl alcohol 1351.57
    2-ethylhexanol 2223.63
    isooctanol 1290.33
    dipropyl ether 2991.04
    1,2-dichlorobenzene 3092.86
    ethyl lactate 751.01
    propylene carbonate 3364.81
    n-methylformamide 1567.86
    2-pentanol 2374.44
    n-pentane 2021.51
    1-propoxy-2-propanol 2118.25
    1-methoxy-2-propyl acetate 2050.01
    2-(2-methoxypropoxy) propanol 852.36
    mesitylene 1807.64
    ε-caprolactone 4721.83
    p-cymene 1262.11
    epichlorohydrin 5264.69
    1,1,1-trichloroethane 6476.28
    2-aminoethanol 588.69
    morpholine-4-carbaldehyde 3251.28
    sulfolane 4700.03
    2,2,4-trimethylpentane 989.78
    2-methyltetrahydrofuran 6532.77
    n-hexyl acetate 3240.75
    isooctane 664.93
    2-(2-butoxyethoxy)ethanol 1251.09
    sec-butyl acetate 1801.23
    tert-butyl acetate 2461.54
    decalin 1417.86
    glycerin 509.71
    diglyme 2565.47
    acrylic acid 1391.58
    isopropyl myristate 1012.6
    n-butyric acid 2991.75
    acetyl acetate 2144.7
    di(2-ethylhexyl) phthalate 689.49
    ethyl propionate 2212.41
    nitromethane 2674.85
    1,2-diethoxyethane 2502.97
    benzonitrile 2245.39
    trioctyl phosphate 679.43
    1-bromopropane 4469.44
    gamma-valerolactone 5140.3
    n-decanol 932.84
    triethyl phosphate 869.19
    4-methyl-2-pentanol 1360.41
    propionitrile 2439.08
    vinylene carbonate 2890.63
    1,1,2-trichlorotrifluoroethane 2565.39
    DMS 1929.27
    cumene 1424.36
    2-octanol 1500.1
    2-hexanone 2488.18
    octyl acetate 1288.63
    limonene 1979.3
    1,2-dimethoxyethane 3283.64
    ethyl orthosilicate 954.9
    tributyl phosphate 841.03
    diacetone alcohol 1548.72
    N,N-dimethylaniline 1420.73
    acrylonitrile 2169.51
    aniline 2218.49
    1,3-propanediol 1211.28
    bromobenzene 4372.14
    dibromomethane 6022.48
    1,1,2,2-tetrachloroethane 7888.25
    2-methyl-cyclohexyl acetate 1625.78
    tetrabutyl urea 991.0
    diisobutyl methanol 1091.88
    2-phenylethanol 1659.15
    styrene 2263.21
    dioctyl adipate 1012.1
    dimethyl sulfate 1637.23
    ethyl butyrate 2119.04
    methyl lactate 832.82
    butyl lactate 1310.08
    diethyl carbonate 1269.15
    propanediol butyl ether 1143.7
    triethyl orthoformate 1525.62
    p-tert-butyltoluene 1220.31
    methyl 4-tert-butylbenzoate 1349.78
    morpholine 4689.68
    tert-butylamine 2112.17
    n-dodecanol 678.9
    dimethoxymethane 3080.99
    ethylene carbonate 2914.42
    cyrene 933.67
    2-ethoxyethyl acetate 2053.83
    2-ethylhexyl acetate 3124.49
    1,2,4-trichlorobenzene 3125.71
    4-methylpyridine 4745.66
    dibutyl ether 2678.84
    2,6-dimethyl-4-heptanol 1091.88
    DEF 3372.17
    dimethyl isosorbide 1747.33
    tetrachloroethylene 6404.72
    eugenol 1087.12
    triacetin 1457.24
    span 80 999.07
    1,4-butanediol 619.92
    1,1-dichloroethane 5672.88
    2-methyl-1-pentanol 1979.84
    methyl formate 1661.52
    2-methyl-1-butanol 2795.64
    n-decane 812.21
    butyronitrile 3135.56
    3,7-dimethyl-1-octanol 1392.74
    1-chlorooctane 2066.91
    1-chlorotetradecane 642.09
    n-nonane 1001.73
    undecane 517.88
    tert-butylcyclohexane 1241.02
    cyclooctane 1817.02
    cyclopentanol 3422.28
    tetrahydropyran 7173.71
    tert-amyl methyl ether 3582.0
    2,5,8-trioxanonane 1308.67
    1-hexene 4159.65
    2-isopropoxyethanol 1258.75
    2,2,2-trifluoroethanol 876.82
    methyl butyrate 2799.71

    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