2-Methyl-3-vinylpyrazine

Overview IFRA Request a quote

  • Identifiers

    CAS number
    25058-19-9

    Molecular formula
    C7H8N2

    SMILES
    CC1=NC=CN=C1C=C

    Safety labels

  • Odor profile

    Fragrance
    Nutty 67.27%
    Roasted 55.71%
    Musty 46.89%
    Burnt 45.98%
    Earthy 45.37%
    Popcorn 43.65%
    Cocoa 40.96%
    Green 40.27%
    Coffee 39.34%
    Hazelnut 38.14%

     

    Flavor
    Nutty 75.53%
    Roasted 51.6%
    Cocoa 50.04%
    Popcorn 48.7%
    Hazelnut 44.45%
    Roast 44.12%
    Corn 43.39%
    Coffee 43.0%
    Chocolate 41.97%
    Musty 38.88%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.0

    pKa est.
    4.14 (weak acid)

    Molecular weight
    120.15 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    201°C

    Flash point

    • 68.44 ˚C est.

  • Synonyms

    • 2-Methyl-3-vinylpyrazine
    • 2-ethenyl-3-methylpyrazine
    • DTXSID00363809
    • RefChem:88108
    • DTXCID00314856
    • QNTVHLKUWSRHIO-UHFFFAOYSA-N
    • 25058-19-9
    • Pyrazine, 2-ethenyl-3-methyl-
    • MFCD04038672
    • 2-Methyl-3-vinyl-pyrazine
    • 2-ethenyl-3-methyl-pyrazine
    • 3-Methyl-2-vinylpyrazine
    • 2-ethenyl-3-methyl pyrazine
    • SCHEMBL8089195
    • CHEBI:193694
    • 2-Ethenyl-3-methylpyrazine, 9CI
    • AKOS006295663
    • H54327
    • M30240
    • EN300-1869069
    • 25058-19-9

  • Applications

    2-Methyl-3-vinylpyrazine (CAS 25058-19-9) is primarily used as an odorant in perfumery and as a flavoring ingredient in flavor systems, contributing roasted, nutty, or spicy notes to formulations; it is also employed as an intermediate in the synthesis of pyrazine derivatives. In cosmetics and personal care, it may function as a fragrance ingredient; in household products, coatings and inks it can serve as a scent additive; in polymer and plastics contexts, the vinyl group provides potential use as a monomer or a functional additive in specialty polymers. Its use is guided by formulation goals and is subject to local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 131.41
    methanol 198.56
    isopropanol 90.49
    water 5.51
    ethyl acetate 200.28
    n-propanol 121.21
    acetone 204.78
    n-butanol 115.02
    acetonitrile 179.51
    DMF 274.67
    toluene 146.97
    isobutanol 97.09
    1,4-dioxane 383.41
    methyl acetate 159.14
    THF 411.56
    2-butanone 189.47
    n-pentanol 106.87
    sec-butanol 94.82
    n-hexane 48.36
    ethylene glycol 47.12
    NMP 426.21
    cyclohexane 50.89
    DMSO 401.9
    n-butyl acetate 167.05
    n-octanol 55.02
    chloroform 460.66
    n-propyl acetate 124.41
    acetic acid 145.85
    dichloromethane 580.27
    cyclohexanone 312.04
    propylene glycol 38.13
    isopropyl acetate 110.29
    DMAc 264.16
    2-ethoxyethanol 156.66
    isopentanol 99.31
    n-heptane 34.75
    ethyl formate 156.74
    1,2-dichloroethane 357.99
    n-hexanol 107.53
    2-methoxyethanol 200.17
    isobutyl acetate 83.52
    tetrachloromethane 164.42
    n-pentyl acetate 105.76
    transcutol 372.76
    n-heptanol 56.3
    ethylbenzene 78.34
    MIBK 97.53
    2-propoxyethanol 173.45
    tert-butanol 115.33
    MTBE 138.95
    2-butoxyethanol 101.2
    propionic acid 124.29
    o-xylene 105.42
    formic acid 79.39
    diethyl ether 189.39
    m-xylene 100.43
    p-xylene 106.44
    chlorobenzene 216.92
    dimethyl carbonate 82.28
    n-octane 15.54
    formamide 100.6
    cyclopentanone 357.75
    2-pentanone 160.21
    anisole 144.99
    cyclopentyl methyl ether 224.85
    gamma-butyrolactone 424.52
    1-methoxy-2-propanol 130.59
    pyridine 268.6
    3-pentanone 160.55
    furfural 394.25
    n-dodecane 11.65
    diethylene glycol 135.88
    diisopropyl ether 65.83
    tert-amyl alcohol 116.98
    acetylacetone 183.07
    n-hexadecane 13.09
    acetophenone 131.2
    methyl propionate 161.75
    isopentyl acetate 137.15
    trichloroethylene 532.2
    n-nonanol 49.95
    cyclohexanol 120.0
    benzyl alcohol 102.2
    2-ethylhexanol 79.73
    isooctanol 50.3
    dipropyl ether 119.32
    1,2-dichlorobenzene 204.76
    ethyl lactate 62.3
    propylene carbonate 211.02
    n-methylformamide 156.68
    2-pentanol 83.19
    n-pentane 39.64
    1-propoxy-2-propanol 116.87
    1-methoxy-2-propyl acetate 132.59
    2-(2-methoxypropoxy) propanol 100.99
    mesitylene 75.51
    ε-caprolactone 265.25
    p-cymene 64.5
    epichlorohydrin 430.72
    1,1,1-trichloroethane 315.85
    2-aminoethanol 71.89
    morpholine-4-carbaldehyde 343.16
    sulfolane 543.47
    2,2,4-trimethylpentane 26.53
    2-methyltetrahydrofuran 315.4
    n-hexyl acetate 120.49
    isooctane 17.51
    2-(2-butoxyethoxy)ethanol 130.18
    sec-butyl acetate 84.72
    tert-butyl acetate 111.21
    decalin 34.58
    glycerin 63.97
    diglyme 244.47
    acrylic acid 119.28
    isopropyl myristate 58.14
    n-butyric acid 157.77
    acetyl acetate 121.71
    di(2-ethylhexyl) phthalate 62.45
    ethyl propionate 122.01
    nitromethane 291.22
    1,2-diethoxyethane 181.88
    benzonitrile 173.4
    trioctyl phosphate 46.52
    1-bromopropane 219.41
    gamma-valerolactone 416.07
    n-decanol 41.06
    triethyl phosphate 75.58
    4-methyl-2-pentanol 50.75
    propionitrile 166.64
    vinylene carbonate 211.51
    1,1,2-trichlorotrifluoroethane 226.87
    DMS 122.35
    cumene 65.84
    2-octanol 44.9
    2-hexanone 130.04
    octyl acetate 71.48
    limonene 84.16
    1,2-dimethoxyethane 265.23
    ethyl orthosilicate 72.1
    tributyl phosphate 62.13
    diacetone alcohol 107.92
    N,N-dimethylaniline 110.41
    acrylonitrile 195.97
    aniline 143.88
    1,3-propanediol 99.66
    bromobenzene 242.34
    dibromomethane 392.69
    1,1,2,2-tetrachloroethane 384.56
    2-methyl-cyclohexyl acetate 102.17
    tetrabutyl urea 76.51
    diisobutyl methanol 50.83
    2-phenylethanol 106.36
    styrene 96.48
    dioctyl adipate 77.27
    dimethyl sulfate 152.24
    ethyl butyrate 130.99
    methyl lactate 74.12
    butyl lactate 70.56
    diethyl carbonate 96.45
    propanediol butyl ether 74.36
    triethyl orthoformate 93.52
    p-tert-butyltoluene 59.29
    methyl 4-tert-butylbenzoate 103.81
    morpholine 307.91
    tert-butylamine 83.29
    n-dodecanol 34.98
    dimethoxymethane 209.42
    ethylene carbonate 176.18
    cyrene 115.52
    2-ethoxyethyl acetate 139.81
    2-ethylhexyl acetate 122.47
    1,2,4-trichlorobenzene 221.59
    4-methylpyridine 269.1
    dibutyl ether 94.59
    2,6-dimethyl-4-heptanol 50.83
    DEF 218.2
    dimethyl isosorbide 205.0
    tetrachloroethylene 304.13
    eugenol 101.76
    triacetin 107.97
    span 80 82.42
    1,4-butanediol 62.34
    1,1-dichloroethane 298.46
    2-methyl-1-pentanol 100.03
    methyl formate 151.21
    2-methyl-1-butanol 107.47
    n-decane 17.15
    butyronitrile 171.64
    3,7-dimethyl-1-octanol 58.4
    1-chlorooctane 59.17
    1-chlorotetradecane 28.55
    n-nonane 17.99
    undecane 13.71
    tert-butylcyclohexane 34.61
    cyclooctane 24.63
    cyclopentanol 144.35
    tetrahydropyran 284.67
    tert-amyl methyl ether 126.39
    2,5,8-trioxanonane 176.37
    1-hexene 101.19
    2-isopropoxyethanol 106.51
    2,2,2-trifluoroethanol 82.84
    methyl butyrate 154.42

    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