2-Methyl-3-(1-propen-1-yl)pyrazine

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  • Identifiers

    CAS number
    115610-67-8

    Molecular formula
    C8H10N2

    SMILES
    CC=CC1=NC=CN=C1C

    Safety labels

  • Odor profile

    Fragrance
    Nutty 69.84%
    Roasted 60.57%
    Earthy 49.4%
    Green 48.38%
    Musty 45.54%
    Cocoa 42.06%
    Hazelnut 41.53%
    Burnt 38.36%
    Vegetable 37.37%
    Chocolate 36.48%

     

    Flavor
    Nutty 69.76%
    Cocoa 46.26%
    Roasted 42.97%
    Hazelnut 39.22%
    Musty 36.68%
    Coffee 32.27%
    Popcorn 31.71%
    Chocolate 31.12%
    Roast 30.39%
    Peanut 30.36%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.2

    pKa est.
    4.38 (weak acid)

    Molecular weight
    134.18 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately slow

    Boiling point est.
    232°C

    Flash point

    • 81.48 ˚C est.

  • Synonyms

    • 2-Methyl-3-(1-propen-1-yl)pyrazine
    • 115610-67-8
    • RefChem:263217
    • 2-methyl-3-propenylpyrazine
    • SCHEMBL7702027
    • DTXSID601297034
    • 2-methyl-3-(prop-1-en-1-yl)pyrazine
    • 115610-67-8

  • Applications

    2-Methyl-3-(1-propen-1-yl)pyrazine (CAS 115610-67-8) is a pyrazine-derived compound primarily used as an odorant in fragrance applications. In practice, it is employed in perfumery as a background or note ingredient, in cosmetics and personal care as a fragrance component, in flavor formulations within the food and beverage industry, and in household products such as cleaners and air fresheners to impart aroma. It also serves as an industrial manufacturing intermediate for the synthesis of more complex aroma compounds used in fragrance and cosmetics, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 164.22
    methanol 178.7
    isopropanol 124.28
    water 2.2
    ethyl acetate 154.49
    n-propanol 152.4
    acetone 203.28
    n-butanol 134.62
    acetonitrile 185.02
    DMF 430.97
    toluene 177.02
    isobutanol 129.8
    1,4-dioxane 296.81
    methyl acetate 165.54
    THF 371.68
    2-butanone 192.47
    n-pentanol 109.86
    sec-butanol 131.14
    n-hexane 49.76
    ethylene glycol 65.47
    NMP 440.78
    cyclohexane 94.86
    DMSO 407.12
    n-butyl acetate 173.37
    n-octanol 105.2
    chloroform 767.73
    n-propyl acetate 106.49
    acetic acid 169.84
    dichloromethane 841.41
    cyclohexanone 318.36
    propylene glycol 70.91
    isopropyl acetate 86.0
    DMAc 359.34
    2-ethoxyethanol 134.0
    isopentanol 109.58
    n-heptane 71.48
    ethyl formate 165.3
    1,2-dichloroethane 423.4
    n-hexanol 166.44
    2-methoxyethanol 217.81
    isobutyl acetate 77.67
    tetrachloromethane 210.34
    n-pentyl acetate 113.59
    transcutol 281.68
    n-heptanol 95.1
    ethylbenzene 109.99
    MIBK 92.35
    2-propoxyethanol 184.58
    tert-butanol 139.97
    MTBE 129.83
    2-butoxyethanol 122.51
    propionic acid 161.78
    o-xylene 138.29
    formic acid 57.42
    diethyl ether 153.17
    m-xylene 128.14
    p-xylene 145.03
    chlorobenzene 263.5
    dimethyl carbonate 96.25
    n-octane 32.72
    formamide 80.84
    cyclopentanone 354.96
    2-pentanone 148.97
    anisole 148.45
    cyclopentyl methyl ether 212.8
    gamma-butyrolactone 399.73
    1-methoxy-2-propanol 153.44
    pyridine 324.09
    3-pentanone 156.85
    furfural 390.53
    n-dodecane 27.17
    diethylene glycol 145.83
    diisopropyl ether 58.96
    tert-amyl alcohol 137.18
    acetylacetone 147.28
    n-hexadecane 30.35
    acetophenone 148.94
    methyl propionate 166.58
    isopentyl acetate 137.81
    trichloroethylene 719.64
    n-nonanol 88.65
    cyclohexanol 159.69
    benzyl alcohol 126.22
    2-ethylhexanol 129.14
    isooctanol 76.59
    dipropyl ether 152.77
    1,2-dichlorobenzene 257.39
    ethyl lactate 80.5
    propylene carbonate 252.21
    n-methylformamide 189.49
    2-pentanol 91.59
    n-pentane 53.0
    1-propoxy-2-propanol 145.99
    1-methoxy-2-propyl acetate 131.38
    2-(2-methoxypropoxy) propanol 118.86
    mesitylene 91.83
    ε-caprolactone 249.09
    p-cymene 107.97
    epichlorohydrin 407.67
    1,1,1-trichloroethane 434.93
    2-aminoethanol 97.25
    morpholine-4-carbaldehyde 333.14
    sulfolane 555.51
    2,2,4-trimethylpentane 34.45
    2-methyltetrahydrofuran 287.93
    n-hexyl acetate 153.45
    isooctane 23.03
    2-(2-butoxyethoxy)ethanol 137.57
    sec-butyl acetate 70.56
    tert-butyl acetate 92.73
    decalin 53.86
    glycerin 94.02
    diglyme 258.9
    acrylic acid 156.14
    isopropyl myristate 78.43
    n-butyric acid 179.91
    acetyl acetate 101.89
    di(2-ethylhexyl) phthalate 83.75
    ethyl propionate 112.94
    nitromethane 231.26
    1,2-diethoxyethane 145.51
    benzonitrile 213.96
    trioctyl phosphate 66.79
    1-bromopropane 273.66
    gamma-valerolactone 343.56
    n-decanol 73.71
    triethyl phosphate 88.89
    4-methyl-2-pentanol 58.63
    propionitrile 184.67
    vinylene carbonate 265.54
    1,1,2-trichlorotrifluoroethane 274.22
    DMS 131.71
    cumene 89.46
    2-octanol 73.58
    2-hexanone 123.88
    octyl acetate 98.71
    limonene 144.13
    1,2-dimethoxyethane 239.89
    ethyl orthosilicate 83.47
    tributyl phosphate 76.13
    diacetone alcohol 107.51
    N,N-dimethylaniline 135.42
    acrylonitrile 216.12
    aniline 173.71
    1,3-propanediol 116.13
    bromobenzene 319.33
    dibromomethane 575.23
    1,1,2,2-tetrachloroethane 554.35
    2-methyl-cyclohexyl acetate 120.76
    tetrabutyl urea 104.26
    diisobutyl methanol 74.57
    2-phenylethanol 142.85
    styrene 132.92
    dioctyl adipate 104.65
    dimethyl sulfate 170.61
    ethyl butyrate 143.96
    methyl lactate 101.02
    butyl lactate 93.12
    diethyl carbonate 112.03
    propanediol butyl ether 109.28
    triethyl orthoformate 103.97
    p-tert-butyltoluene 96.02
    methyl 4-tert-butylbenzoate 138.3
    morpholine 293.21
    tert-butylamine 112.01
    n-dodecanol 64.16
    dimethoxymethane 226.16
    ethylene carbonate 208.34
    cyrene 135.21
    2-ethoxyethyl acetate 124.28
    2-ethylhexyl acetate 123.75
    1,2,4-trichlorobenzene 286.92
    4-methylpyridine 298.14
    dibutyl ether 127.67
    2,6-dimethyl-4-heptanol 74.57
    DEF 226.79
    dimethyl isosorbide 212.64
    tetrachloroethylene 402.15
    eugenol 132.55
    triacetin 126.63
    span 80 114.75
    1,4-butanediol 68.64
    1,1-dichloroethane 399.46
    2-methyl-1-pentanol 106.59
    methyl formate 179.07
    2-methyl-1-butanol 123.92
    n-decane 38.19
    butyronitrile 188.63
    3,7-dimethyl-1-octanol 92.59
    1-chlorooctane 109.45
    1-chlorotetradecane 55.21
    n-nonane 40.03
    undecane 31.89
    tert-butylcyclohexane 46.43
    cyclooctane 39.12
    cyclopentanol 202.62
    tetrahydropyran 273.35
    tert-amyl methyl ether 120.14
    2,5,8-trioxanonane 198.7
    1-hexene 108.91
    2-isopropoxyethanol 96.14
    2,2,2-trifluoroethanol 81.29
    methyl butyrate 150.04

    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