2,6-Dimethylpyrazine

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  • Identifiers

    CAS number
    108-50-9

    Molecular formula
    C6H8N2

    SMILES
    CC1=CN=CC(=N1)C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Retention indicies (RI)

    • DB5: 912.0
    • Carbowax: 1311.25

  • Odor profile

    Nutty 80.72%
    Roasted 80.19%
    Cocoa 65.5%
    Hazelnut 63.31%
    Coffee 61.31%
    Musty 53.47%
    Earthy 52.83%
    Chocolate 52.59%
    Burnt 52.25%
    Potato 50.67%

    Scent© AI

  • Properties

    XLogP3-AA
    0.5

    Molecular weight
    108.14 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Melting point expt.

    • 47 - 48 °C

    Boiling point

    • 154.00 to 155.00 °C. @ 760.00 mm Hg

    Flash point est.
    56.61 ˚C

    Solubility expt.

    • soluble in water, organic solvents
    • very soluble (in ethanol)

  • Synonyms

    • 2,6-DIMETHYLPYRAZINE
    • 108-50-9
    • Pyrazine, 2,6-dimethyl-
    • 3,5-Dimethylpyrazine
    • 2,6-Dimethylpiazine
    • 2,6-Dimethylparadiazine
    • 2,6-Dimethyl-1,4-diazine
    • FEMA No. 3273
    • CCRIS 2930
    • 2,6-Dimethylpyrazine (natural)
    • EINECS 203-589-4
    • N77Q72C9I3
    • DTXSID5047619
    • 2,6-DIMETHYLPYRAZINE [FCC]
    • 2,6-DIMETHYLPYRAZINE [FHFI]
    • UNII-N77Q72C9I3
    • MFCD00006148
    • 2,6 dimethylpyrazine
    • 2,6-dimethyl-pyrazine
    • 2,6-Dimethylpyrazine, 98%
    • SCHEMBL110425
    • 2,6-dioxaspiro[3,3]heptane
    • SCHEMBL7120213
    • DTXCID3027619
    • PYRAZINE, 2,6-DIMETHYL
    • CHEBI:89791
    • FEMA 3273
    • 2,6-Dimethylpyrazine, >=98%, FG
    • AKOS006220715
    • CS-W021530
    • HY-W040790
    • 2,6-Dimethylpyrazine, analytical standard
    • AC-23626
    • AS-14441
    • PD158374
    • DB-003244
    • D1527
    • NS00012336
    • 2,6-Dimethylpyrazine, natural (US), >=90%
    • EN300-105139
    • O10631
    • Q27161978
    • F0001-0172
    • InChI=1/C6H8N2/c1-5-3-7-4-6(2)8-5/h3-4H,1-2H
    • 203-589-4

  • Applications

    2,6-Dimethylpyrazine (CAS 108-50-9) is a naturally occurring flavor compound found in roasted products such as coffee, cocoa, meats, and cereals, widely employed in the food industry to recreate characteristic roasted aromas, add depth and complexity to meat flavors, seasonings, snacks, confectionery, and beverages, while also being used in pharmaceuticals, cosmetics, and tobacco as a masking and harmonizing agent that imparts warmth and pleasant sensory notes, thereby enhancing the overall consumer acceptance and value of finished products.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 238.95
    methanol 374.82
    isopropanol 142.18
    water 19.07
    ethyl acetate 175.81
    n-propanol 190.54
    acetone 179.65
    n-butanol 183.62
    acetonitrile 161.41
    DMF 208.94
    toluene 132.89
    isobutanol 152.1
    1,4-dioxane 273.58
    methyl acetate 177.15
    THF 364.42
    2-butanone 199.21
    n-pentanol 149.26
    sec-butanol 162.1
    n-hexane 63.08
    ethylene glycol 78.09
    NMP 395.14
    cyclohexane 68.65
    DMSO 232.2
    n-butyl acetate 190.1
    n-octanol 81.72
    chloroform 505.51
    n-propyl acetate 90.59
    acetic acid 297.78
    dichloromethane 490.53
    cyclohexanone 265.39
    propylene glycol 71.51
    isopropyl acetate 97.09
    DMAc 266.48
    2-ethoxyethanol 169.07
    isopentanol 155.01
    n-heptane 55.02
    ethyl formate 144.94
    1,2-dichloroethane 245.39
    n-hexanol 184.94
    2-methoxyethanol 256.54
    isobutyl acetate 70.34
    tetrachloromethane 134.27
    n-pentyl acetate 103.13
    transcutol 422.02
    n-heptanol 77.24
    ethylbenzene 56.88
    MIBK 90.72
    2-propoxyethanol 255.58
    tert-butanol 158.48
    MTBE 170.8
    2-butoxyethanol 128.56
    propionic acid 169.72
    o-xylene 89.19
    formic acid 219.67
    diethyl ether 216.19
    m-xylene 84.59
    p-xylene 77.33
    chlorobenzene 167.6
    dimethyl carbonate 67.75
    n-octane 19.08
    formamide 149.01
    cyclopentanone 279.97
    2-pentanone 147.9
    anisole 104.04
    cyclopentyl methyl ether 219.39
    gamma-butyrolactone 292.89
    1-methoxy-2-propanol 161.0
    pyridine 200.92
    3-pentanone 147.21
    furfural 293.69
    n-dodecane 13.99
    diethylene glycol 185.85
    diisopropyl ether 65.28
    tert-amyl alcohol 167.66
    acetylacetone 133.5
    n-hexadecane 15.3
    acetophenone 95.94
    methyl propionate 143.3
    isopentyl acetate 147.14
    trichloroethylene 400.24
    n-nonanol 68.69
    cyclohexanol 161.52
    benzyl alcohol 100.16
    2-ethylhexanol 117.08
    isooctanol 62.88
    dipropyl ether 147.53
    1,2-dichlorobenzene 148.28
    ethyl lactate 56.03
    propylene carbonate 180.04
    n-methylformamide 145.42
    2-pentanol 116.05
    n-pentane 59.05
    1-propoxy-2-propanol 179.48
    1-methoxy-2-propyl acetate 143.24
    2-(2-methoxypropoxy) propanol 123.05
    mesitylene 55.02
    ε-caprolactone 234.52
    p-cymene 59.88
    epichlorohydrin 324.36
    1,1,1-trichloroethane 254.48
    2-aminoethanol 123.32
    morpholine-4-carbaldehyde 290.88
    sulfolane 325.76
    2,2,4-trimethylpentane 33.29
    2-methyltetrahydrofuran 356.48
    n-hexyl acetate 129.6
    isooctane 18.86
    2-(2-butoxyethoxy)ethanol 148.19
    sec-butyl acetate 68.26
    tert-butyl acetate 96.59
    decalin 33.03
    glycerin 104.01
    diglyme 240.3
    acrylic acid 161.59
    isopropyl myristate 55.54
    n-butyric acid 195.85
    acetyl acetate 118.57
    di(2-ethylhexyl) phthalate 67.85
    ethyl propionate 89.65
    nitromethane 273.27
    1,2-diethoxyethane 182.04
    benzonitrile 134.09
    trioctyl phosphate 46.38
    1-bromopropane 210.91
    gamma-valerolactone 319.99
    n-decanol 52.53
    triethyl phosphate 65.51
    4-methyl-2-pentanol 67.56
    propionitrile 147.73
    vinylene carbonate 173.64
    1,1,2-trichlorotrifluoroethane 220.79
    DMS 107.89
    cumene 47.87
    2-octanol 54.73
    2-hexanone 104.61
    octyl acetate 75.61
    limonene 93.79
    1,2-dimethoxyethane 224.98
    ethyl orthosilicate 65.94
    tributyl phosphate 64.77
    diacetone alcohol 106.07
    N,N-dimethylaniline 83.96
    acrylonitrile 142.57
    aniline 145.2
    1,3-propanediol 151.08
    bromobenzene 166.2
    dibromomethane 346.74
    1,1,2,2-tetrachloroethane 306.03
    2-methyl-cyclohexyl acetate 96.13
    tetrabutyl urea 77.03
    diisobutyl methanol 62.14
    2-phenylethanol 116.52
    styrene 70.08
    dioctyl adipate 76.71
    dimethyl sulfate 99.58
    ethyl butyrate 114.43
    methyl lactate 72.2
    butyl lactate 75.68
    diethyl carbonate 81.13
    propanediol butyl ether 99.13
    triethyl orthoformate 88.37
    p-tert-butyltoluene 56.37
    methyl 4-tert-butylbenzoate 99.88
    morpholine 277.27
    tert-butylamine 121.31
    n-dodecanol 42.53
    dimethoxymethane 175.81
    ethylene carbonate 147.69
    cyrene 117.7
    2-ethoxyethyl acetate 134.83
    2-ethylhexyl acetate 132.9
    1,2,4-trichlorobenzene 179.14
    4-methylpyridine 230.61
    dibutyl ether 111.34
    2,6-dimethyl-4-heptanol 62.14
    DEF 184.47
    dimethyl isosorbide 197.79
    tetrachloroethylene 244.63
    eugenol 97.06
    triacetin 107.47
    span 80 106.13
    1,4-butanediol 80.46
    1,1-dichloroethane 252.03
    2-methyl-1-pentanol 139.43
    methyl formate 131.56
    2-methyl-1-butanol 167.24
    n-decane 21.71
    butyronitrile 173.0
    3,7-dimethyl-1-octanol 85.08
    1-chlorooctane 64.22
    1-chlorotetradecane 28.73
    n-nonane 23.6
    undecane 16.82
    tert-butylcyclohexane 32.64
    cyclooctane 27.79
    cyclopentanol 180.14
    tetrahydropyran 269.84
    tert-amyl methyl ether 156.65
    2,5,8-trioxanonane 180.93
    1-hexene 115.46
    2-isopropoxyethanol 118.41
    2,2,2-trifluoroethanol 124.29
    methyl butyrate 109.6

    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%
Zizyphus jujuba fruit (Malaysia) Zizyphus jujuba Mill. var. inermis, fam. Rhamnaceae 0.01%
Coriander fruit 5 8008-52-4 Coriandrum sativum L., fam. Apiaceae (Umbelliferae) 0.01%
Chicory root, roasted 2 68650-43-1 Cichorium intybus L., fam. Asteraceae (Compositae) 4.02%
Chicory root, roasted 1a 68650-43-1 Cichorium intybus L., fam. Asteraceae (Compositae) 0.31%
Chicory root, roasted 1b 68650-43-1 Cichorium intybus L., fam. Asteraceae (Compositae) 0.25%
Carob bean powder 2a raw 9000-40-2 Ceratonia siliqua L., fam. Leguminoseae 0.01%
Carob bean powder 2b roasted 9000-40-2 Ceratonia siliqua L., fam. Leguminoseae 0.01%
Mandarin (Italy) 8 8008-31-9 Citrus deliciosa Tenore (C. reticulata Blanco, cv.mandarin), fam. Rutaceae 0.01%