2-Methyl-3-(methylthio)pyrazine

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    2882-20-4

    Molecular formula
    C6H8N2S

    SMILES
    CC1=NC=CN=C1SC

  • Odor profile

    Nutty 85.54%
    Roasted 82.51%
    Meaty 72.75%
    Hazelnut 57.77%
    Coffee 57.09%
    Cocoa 54.79%
    Earthy 53.56%
    Vegetable 53.27%
    Musty 51.43%
    Burnt 50.17%

    Scent© AI

  • Properties

    XLogP3-AA
    1.8

    pKa est.
    3.73 (weak acid)

    Molecular weight
    140.21 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    223°C

    Flash point est.
    98.62 ˚C

  • Synonyms

    • 2-Methyl-3-(methylthio)pyrazine
    • 2882-20-4
    • 2-Methylthio-3-methylpyrazine
    • Pyrazine, 2-methyl-3-(methylthio)-
    • 2-Methyl-3-methylsulfanyl-pyrazine
    • 2-methyl-3-methylsulfanylpyrazine
    • 68378-12-1
    • 2-Methylmercapto-3-methylpyrazine
    • 3-Methyl-2-methylthiopyrazine
    • 2-Methyl-3-methylmercaptopyrazine
    • MFCD00014610
    • Pyrazine, 2-methyl-3(or 5)-(methylthio)-
    • KI350CS0LZ
    • FEMA No. 3208
    • NSC-222757
    • (Methylthio)(methyl)pyrazine
    • FEMA 3208
    • EINECS 269-880-3
    • UNII-KI350CS0LZ
    • 2-Methyl-3(or5)-(methylthio)pyrazine
    • 2-Methyl-(3,5 or 6)-methylthiopyrazine
    • EINECS 220-736-8
    • Pyrazine,2-methyl-3-(methylthio)-
    • NSC 222757
    • Methylmethylthiopyrazine
    • Methyl(methylthio)pyrazine
    • Pyrazine, 2-methyl-(3,5 or 6)-methylthio-
    • CHEMBL97593
    • SCHEMBL891369
    • METHYL-METHYLTHIOPYRAZINE
    • 2-methyl-3-methylsulanylpyrazine
    • DTXSID70863048
    • CHEBI:178124
    • EINECS 267-918-3
    • 2-Methyl-3-(methylsulfanyl)pyrazine
    • AC7605
    • NSC222757
    • AKOS015842589
    • 2-Methyl-3-(methylsulfanyl)pyrazine #
    • CS-W018307
    • 2-Methyl-3(or 5)-(methylthio)pyrazine
    • 2-Methyl-3-(methylthio)pyrazine, 80%
    • AC-11166
    • DS-14134
    • SY015340
    • DB-021397
    • DB-021398
    • DB-356155
    • FEMA NO. 3208, 3-(METHYLTHIO)-
    • M0685
    • NS00012930
    • NS00121068
    • 2-Methyl-3(or 5 or 6)-(methylthio)pyrazine
    • 3(or 5 or 6)-(Methylthio)-2-methylpyrazine
    • Q27282262

  • Applications

    2-Methyl-3-(methylthio)pyrazine (CAS 2882-20-4) is a highly potent pyrazine odorant used at trace levels to build and fine-tune roasted, baked potato, nutty, caramelized, coffee-cocoa, green/vegetal-bell pepper notes in flavor formulations; it enhances authenticity and depth in savory seasonings, soups and sauces, instant noodles and snacks, plant-based meat and seafood analogs, baked goods, roasted nuts and cereals, instant coffee, chocolate and fermented beverages, as well as pet food flavors (typically at ppb-ppm to avoid overpowering); it is also used in fine fragrance and home care to add green-vegetal or smoky-roasted facets to “green” and “gourmand” accords, in sensory and analytical work (reference standard, GC-O/GC-MS spiking, panel training, aroma recombination) and in studies of Maillard chemistry/food aging, and features in odor control and microencapsulation or carrier-based delivery strategies to improve stability, release and retention during processing and storage.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 297.09
    methanol 499.99
    isopropanol 173.59
    water 14.33
    ethyl acetate 425.86
    n-propanol 228.21
    acetone 557.43
    n-butanol 200.91
    acetonitrile 528.6
    DMF 737.75
    toluene 294.26
    isobutanol 162.17
    1,4-dioxane 889.52
    methyl acetate 338.68
    THF 918.05
    2-butanone 404.61
    n-pentanol 162.54
    sec-butanol 162.63
    n-hexane 44.56
    ethylene glycol 128.09
    NMP 978.85
    cyclohexane 83.9
    DMSO 1082.28
    n-butyl acetate 324.14
    n-octanol 96.06
    chloroform 1227.52
    n-propyl acetate 265.18
    acetic acid 448.7
    dichloromethane 1464.57
    cyclohexanone 786.96
    propylene glycol 90.75
    isopropyl acetate 225.65
    DMAc 552.73
    2-ethoxyethanol 333.04
    isopentanol 157.36
    n-heptane 49.13
    ethyl formate 390.42
    1,2-dichloroethane 901.3
    n-hexanol 164.66
    2-methoxyethanol 506.88
    isobutyl acetate 151.86
    tetrachloromethane 351.63
    n-pentyl acetate 220.13
    transcutol 630.93
    n-heptanol 100.07
    ethylbenzene 122.62
    MIBK 190.84
    2-propoxyethanol 337.59
    tert-butanol 197.49
    MTBE 210.71
    2-butoxyethanol 213.34
    propionic acid 274.48
    o-xylene 182.25
    formic acid 262.56
    diethyl ether 341.89
    m-xylene 178.21
    p-xylene 167.61
    chlorobenzene 518.68
    dimethyl carbonate 183.28
    n-octane 21.63
    formamide 356.1
    cyclopentanone 935.58
    2-pentanone 344.89
    anisole 274.63
    cyclopentyl methyl ether 442.52
    gamma-butyrolactone 1084.36
    1-methoxy-2-propanol 308.78
    pyridine 775.09
    3-pentanone 313.57
    furfural 1070.7
    n-dodecane 16.85
    diethylene glycol 297.88
    diisopropyl ether 102.45
    tert-amyl alcohol 177.6
    acetylacetone 457.48
    n-hexadecane 19.58
    acetophenone 267.04
    methyl propionate 334.71
    isopentyl acetate 237.83
    trichloroethylene 1487.43
    n-nonanol 82.87
    cyclohexanol 232.62
    benzyl alcohol 210.12
    2-ethylhexanol 124.85
    isooctanol 87.73
    dipropyl ether 206.54
    1,2-dichlorobenzene 490.17
    ethyl lactate 121.63
    propylene carbonate 494.68
    n-methylformamide 485.39
    2-pentanol 130.39
    n-pentane 44.17
    1-propoxy-2-propanol 226.02
    1-methoxy-2-propyl acetate 272.48
    2-(2-methoxypropoxy) propanol 163.63
    mesitylene 124.36
    ε-caprolactone 599.05
    p-cymene 108.26
    epichlorohydrin 986.46
    1,1,1-trichloroethane 747.58
    2-aminoethanol 173.99
    morpholine-4-carbaldehyde 867.59
    sulfolane 1357.68
    2,2,4-trimethylpentane 28.49
    2-methyltetrahydrofuran 661.18
    n-hexyl acetate 234.49
    isooctane 20.08
    2-(2-butoxyethoxy)ethanol 227.3
    sec-butyl acetate 156.05
    tert-butyl acetate 227.52
    decalin 46.04
    glycerin 166.11
    diglyme 503.53
    acrylic acid 292.28
    isopropyl myristate 96.2
    n-butyric acid 359.63
    acetyl acetate 278.37
    di(2-ethylhexyl) phthalate 103.56
    ethyl propionate 234.65
    nitromethane 935.29
    1,2-diethoxyethane 322.5
    benzonitrile 409.4
    trioctyl phosphate 80.12
    1-bromopropane 411.26
    gamma-valerolactone 1145.32
    n-decanol 64.93
    triethyl phosphate 134.05
    4-methyl-2-pentanol 77.82
    propionitrile 380.58
    vinylene carbonate 540.74
    1,1,2-trichlorotrifluoroethane 576.8
    DMS 220.97
    cumene 93.16
    2-octanol 77.85
    2-hexanone 235.55
    octyl acetate 115.86
    limonene 150.85
    1,2-dimethoxyethane 561.19
    ethyl orthosilicate 123.78
    tributyl phosphate 102.72
    diacetone alcohol 226.49
    N,N-dimethylaniline 186.53
    acrylonitrile 514.67
    aniline 327.88
    1,3-propanediol 232.09
    bromobenzene 570.62
    dibromomethane 901.25
    1,1,2,2-tetrachloroethane 1016.59
    2-methyl-cyclohexyl acetate 183.98
    tetrabutyl urea 134.32
    diisobutyl methanol 83.52
    2-phenylethanol 208.23
    styrene 170.96
    dioctyl adipate 135.21
    dimethyl sulfate 333.07
    ethyl butyrate 253.39
    methyl lactate 161.3
    butyl lactate 146.74
    diethyl carbonate 183.83
    propanediol butyl ether 149.24
    triethyl orthoformate 177.06
    p-tert-butyltoluene 101.07
    methyl 4-tert-butylbenzoate 207.4
    morpholine 729.55
    tert-butylamine 130.9
    n-dodecanol 52.94
    dimethoxymethane 484.27
    ethylene carbonate 457.07
    cyrene 229.99
    2-ethoxyethyl acetate 301.74
    2-ethylhexyl acetate 215.7
    1,2,4-trichlorobenzene 521.08
    4-methylpyridine 677.49
    dibutyl ether 147.66
    2,6-dimethyl-4-heptanol 83.52
    DEF 437.82
    dimethyl isosorbide 376.93
    tetrachloroethylene 793.46
    eugenol 208.54
    triacetin 210.62
    span 80 153.71
    1,4-butanediol 121.35
    1,1-dichloroethane 679.73
    2-methyl-1-pentanol 143.07
    methyl formate 474.4
    2-methyl-1-butanol 156.54
    n-decane 25.99
    butyronitrile 384.81
    3,7-dimethyl-1-octanol 90.18
    1-chlorooctane 97.75
    1-chlorotetradecane 44.05
    n-nonane 26.85
    undecane 20.16
    tert-butylcyclohexane 40.73
    cyclooctane 34.12
    cyclopentanol 293.57
    tetrahydropyran 579.26
    tert-amyl methyl ether 186.56
    2,5,8-trioxanonane 326.2
    1-hexene 113.11
    2-isopropoxyethanol 212.71
    2,2,2-trifluoroethanol 232.39
    methyl butyrate 300.37

    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

Botanical

Name CAS Botanical Proportion
Orris butter 8002-73-1 Iris florentina L., fam. Iridaceae 0.01%