1-(Prop-1-en-1-yl)-1,2-dihydropyrazine

Overview IFRA Request a quote

  • Identifiers

    CAS number
    34413-32-6

    Molecular formula
    C7H10N2

    SMILES
    CC=CN1CC=NC=C1

    Safety labels

  • Odor profile

    Fragrance
    Nutty 53.68%
    Roasted 47.44%
    Green 39.12%
    Pungent 34.43%
    Popcorn 34.12%
    Fishy 33.27%
    Vegetable 26.45%
    Meaty 26.08%
    Radish 24.96%
    Earthy 24.66%

     

    Flavor
    Bitter 28.73%
    Roasted 24.71%
    Shrimp 21.17%
    Nitrile 20.45%
    Nutty 20.26%
    Taco 20.21%
    Basil 19.75%
    Oriental 19.72%
    Lovage 19.46%
    Spice 19.3%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.6

    pKa est.
    5.83 (weak acid)

    Molecular weight
    122.17 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    199°C

    Flash point

    • 88.21 ˚C est.

  • Synonyms

    • DTXSID20784779
    • 34413-32-6
    • 1-(Prop-1-en-1-yl)-1,2-dihydropyrazine
    • RefChem:226989
    • DTXCID00735522
    • 34413-32-6

  • Applications

    1-(Prop-1-en-1-yl)-1,2-dihydropyrazine is commonly used as an organic synthesis intermediate, supporting the development of heterocyclic compounds in pharmaceutical and agrochemical research. It also serves as a building block for specialty polymers and materials that incorporate pyrazine units, enabling functionalization and potential crosslinking. In fragrance and flavor applications, it may be used as an odor-active intermediate or fragrance precursor. In cosmetics/personal care and household products, it can appear as a scent-related intermediate or formulation component. In addition, it is used in research settings as a versatile reagent or precursor under appropriate safety and regulatory controls.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 86.13
    methanol 110.95
    isopropanol 48.63
    water 1.67
    ethyl acetate 110.03
    n-propanol 70.43
    acetone 167.99
    n-butanol 64.22
    acetonitrile 119.19
    DMF 250.02
    toluene 82.97
    isobutanol 53.99
    1,4-dioxane 159.62
    methyl acetate 111.13
    THF 243.59
    2-butanone 128.11
    n-pentanol 46.14
    sec-butanol 50.02
    n-hexane 8.79
    ethylene glycol 50.07
    NMP 341.01
    cyclohexane 22.22
    DMSO 572.43
    n-butyl acetate 112.78
    n-octanol 29.78
    chloroform 444.07
    n-propyl acetate 56.54
    acetic acid 214.0
    dichloromethane 474.13
    cyclohexanone 199.81
    propylene glycol 46.36
    isopropyl acetate 55.97
    DMAc 240.52
    2-ethoxyethanol 80.22
    isopentanol 55.37
    n-heptane 14.85
    ethyl formate 85.84
    1,2-dichloroethane 253.55
    n-hexanol 67.66
    2-methoxyethanol 138.05
    isobutyl acetate 39.39
    tetrachloromethane 87.45
    n-pentyl acetate 45.04
    transcutol 360.29
    n-heptanol 28.23
    ethylbenzene 28.11
    MIBK 45.63
    2-propoxyethanol 112.63
    tert-butanol 64.95
    MTBE 59.1
    2-butoxyethanol 57.97
    propionic acid 115.88
    o-xylene 56.23
    formic acid 89.54
    diethyl ether 65.64
    m-xylene 57.18
    p-xylene 37.92
    chlorobenzene 141.12
    dimethyl carbonate 52.3
    n-octane 5.03
    formamide 87.15
    cyclopentanone 258.97
    2-pentanone 88.04
    anisole 62.98
    cyclopentyl methyl ether 118.36
    gamma-butyrolactone 302.57
    1-methoxy-2-propanol 90.89
    pyridine 200.12
    3-pentanone 85.88
    furfural 284.84
    n-dodecane 4.92
    diethylene glycol 117.12
    diisopropyl ether 21.09
    tert-amyl alcohol 59.74
    acetylacetone 109.3
    n-hexadecane 5.55
    acetophenone 68.42
    methyl propionate 100.26
    isopentyl acetate 81.01
    trichloroethylene 507.27
    n-nonanol 26.38
    cyclohexanol 74.93
    benzyl alcohol 63.47
    2-ethylhexanol 48.79
    isooctanol 24.89
    dipropyl ether 58.29
    1,2-dichlorobenzene 122.92
    ethyl lactate 40.36
    propylene carbonate 163.37
    n-methylformamide 121.57
    2-pentanol 38.51
    n-pentane 11.25
    1-propoxy-2-propanol 86.77
    1-methoxy-2-propyl acetate 98.51
    2-(2-methoxypropoxy) propanol 83.3
    mesitylene 37.19
    ε-caprolactone 159.93
    p-cymene 35.63
    epichlorohydrin 292.22
    1,1,1-trichloroethane 221.51
    2-aminoethanol 62.66
    morpholine-4-carbaldehyde 238.12
    sulfolane 432.39
    2,2,4-trimethylpentane 9.93
    2-methyltetrahydrofuran 197.49
    n-hexyl acetate 63.42
    isooctane 6.24
    2-(2-butoxyethoxy)ethanol 103.32
    sec-butyl acetate 37.37
    tert-butyl acetate 56.3
    decalin 12.41
    glycerin 80.79
    diglyme 172.42
    acrylic acid 133.72
    isopropyl myristate 29.58
    n-butyric acid 133.57
    acetyl acetate 89.02
    di(2-ethylhexyl) phthalate 44.62
    ethyl propionate 52.76
    nitromethane 261.31
    1,2-diethoxyethane 99.97
    benzonitrile 106.88
    trioctyl phosphate 27.6
    1-bromopropane 137.18
    gamma-valerolactone 251.01
    n-decanol 22.01
    triethyl phosphate 44.5
    4-methyl-2-pentanol 26.88
    propionitrile 89.69
    vinylene carbonate 153.38
    1,1,2-trichlorotrifluoroethane 233.6
    DMS 72.33
    cumene 24.37
    2-octanol 17.86
    2-hexanone 55.78
    octyl acetate 38.35
    limonene 55.11
    1,2-dimethoxyethane 108.16
    ethyl orthosilicate 40.53
    tributyl phosphate 38.96
    diacetone alcohol 69.98
    N,N-dimethylaniline 50.05
    acrylonitrile 122.99
    aniline 106.53
    1,3-propanediol 70.56
    bromobenzene 160.22
    dibromomethane 312.35
    1,1,2,2-tetrachloroethane 338.55
    2-methyl-cyclohexyl acetate 62.3
    tetrabutyl urea 49.52
    diisobutyl methanol 30.06
    2-phenylethanol 69.94
    styrene 40.64
    dioctyl adipate 53.17
    dimethyl sulfate 117.48
    ethyl butyrate 74.47
    methyl lactate 61.19
    butyl lactate 46.61
    diethyl carbonate 53.76
    propanediol butyl ether 62.5
    triethyl orthoformate 52.76
    p-tert-butyltoluene 33.3
    methyl 4-tert-butylbenzoate 65.28
    morpholine 170.37
    tert-butylamine 44.97
    n-dodecanol 19.4
    dimethoxymethane 107.74
    ethylene carbonate 112.82
    cyrene 84.63
    2-ethoxyethyl acetate 75.69
    2-ethylhexyl acetate 67.73
    1,2,4-trichlorobenzene 159.99
    4-methylpyridine 169.97
    dibutyl ether 41.67
    2,6-dimethyl-4-heptanol 30.06
    DEF 124.78
    dimethyl isosorbide 149.54
    tetrachloroethylene 223.94
    eugenol 67.47
    triacetin 78.87
    span 80 69.38
    1,4-butanediol 36.98
    1,1-dichloroethane 212.68
    2-methyl-1-pentanol 48.3
    methyl formate 111.14
    2-methyl-1-butanol 57.58
    n-decane 6.8
    butyronitrile 85.39
    3,7-dimethyl-1-octanol 36.72
    1-chlorooctane 26.31
    1-chlorotetradecane 13.68
    n-nonane 6.53
    undecane 5.62
    tert-butylcyclohexane 11.59
    cyclooctane 8.6
    cyclopentanol 90.55
    tetrahydropyran 147.49
    tert-amyl methyl ether 51.77
    2,5,8-trioxanonane 137.25
    1-hexene 25.87
    2-isopropoxyethanol 56.02
    2,2,2-trifluoroethanol 86.18
    methyl butyrate 68.82

    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