2-Ethylpyridine

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  • Identifiers

    CAS number
    100-71-0

    Molecular formula
    C7H9N

    SMILES
    CCC1=CC=CC=N1

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Green 84.64%
    Earthy 52.34%
    Nutty 50.07%
    Fishy 47.25%
    Vegetable 42.31%
    Roasted 41.53%
    Herbal 40.75%
    Tobacco 38.38%
    Musty 38.36%
    Burnt 37.64%

     

    Flavor
    Green 82.68%
    Nutty 51.69%
    Fatty 35.63%
    Vegetable 35.61%
    Roasted 32.46%
    Earthy 30.72%
    Musty 26.77%
    Bitter 26.15%
    Woody 25.95%
    Pepper 25.75%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.7

    pKa est.
    5.35 (weak acid)

    Molecular weight
    107.15 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    148°C

    Flash point

    • 34.96 ˚C est.

  • Synonyms

    • 2-ETHYLPYRIDINE
    • 100-71-0
    • Pyridine, 2-ethyl-
    • Pyridine, ethyl-
    • Ethylpyridine
    • .alpha.-Ethylpyridine
    • 2-Ethyl-pyridine
    • alpha-Ethylpyridine
    • NSC 964
    • EINECS 202-881-9
    • UNII-06X1W46PYX
    • 06X1W46PYX
    • NSC-964
    • DTXSID4021844
    • 28631-77-8
    • 2-ethylpyridin
    • alphaEthylpyridine
    • Pyridine, 2ethyl
    • Dimetindene Maleate Imp. A (EP); Dimetindene Imp. A (EP); 2-Ethylpyridine; Dimetindene Maleate Impurity A; Dimetindene Impurity A
    • MFCD00006361
    • 2-Ethylpyridine, 97%
    • SCHEMBL54892
    • CHEMBL279305
    • DTXCID501844
    • NSC964
    • 2-Ethylpyridine, analytical standard
    • AKOS000121053
    • AT23190
    • FE05463
    • LS-13281
    • DB-003269
    • E0168
    • NS00021433
    • EN300-21760
    • A800262
    • Q27236227
    • Z113558650
    • 202-881-9

  • Applications

    2-Ethylpyridine (CAS 100-71-0) is primarily used as a chemical intermediate in the synthesis of pharmaceuticals and agrochemicals, serving as a pyridine-based building block for active ingredients and related intermediates. It is also employed in the production of dyes, pigments and other specialty chemicals, where the 2-pyridyl moiety is valuable for structure and coupling. In industrial manufacturing, it can function as a solvent or reaction medium and as a precursor to pyridine-containing ligands for catalysis and materials applications. It finds use in coatings, inks and adhesives as a starting material for pyridine-containing additives and monomers, and may be evaluated for use in polymer formulations. Its use is typically governed by local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 965.77
    methanol 1249.94
    isopropanol 576.54
    water 2.37
    ethyl acetate 1001.59
    n-propanol 718.33
    acetone 1183.27
    n-butanol 669.15
    acetonitrile 1073.57
    DMF 1279.43
    toluene 718.95
    isobutanol 533.7
    1,4-dioxane 1645.86
    methyl acetate 821.16
    THF 1617.43
    2-butanone 985.32
    n-pentanol 552.35
    sec-butanol 512.24
    n-hexane 274.46
    ethylene glycol 168.03
    NMP 1517.63
    cyclohexane 257.95
    DMSO 1839.14
    n-butyl acetate 1219.11
    n-octanol 329.54
    chloroform 3496.43
    n-propyl acetate 760.45
    acetic acid 780.54
    dichloromethane 3807.16
    cyclohexanone 1496.08
    propylene glycol 172.68
    isopropyl acetate 518.29
    DMAc 927.77
    2-ethoxyethanol 605.66
    isopentanol 553.07
    n-heptane 202.09
    ethyl formate 672.56
    1,2-dichloroethane 1882.5
    n-hexanol 667.76
    2-methoxyethanol 878.87
    isobutyl acetate 479.15
    tetrachloromethane 882.04
    n-pentyl acetate 536.71
    transcutol 1895.07
    n-heptanol 292.96
    ethylbenzene 309.81
    MIBK 464.9
    2-propoxyethanol 877.15
    tert-butanol 599.29
    MTBE 710.02
    2-butoxyethanol 465.19
    propionic acid 662.17
    o-xylene 335.22
    formic acid 246.69
    diethyl ether 1047.45
    m-xylene 374.28
    p-xylene 399.36
    chlorobenzene 1149.43
    dimethyl carbonate 320.39
    n-octane 81.72
    formamide 315.66
    cyclopentanone 1533.99
    2-pentanone 825.66
    anisole 599.12
    cyclopentyl methyl ether 931.42
    gamma-butyrolactone 1630.65
    1-methoxy-2-propanol 586.14
    pyridine 1567.69
    3-pentanone 697.62
    furfural 1410.31
    n-dodecane 59.95
    diethylene glycol 510.68
    diisopropyl ether 277.48
    tert-amyl alcohol 535.74
    acetylacetone 772.86
    n-hexadecane 67.14
    acetophenone 520.8
    methyl propionate 723.84
    isopentyl acetate 788.16
    trichloroethylene 3001.3
    n-nonanol 272.09
    cyclohexanol 588.97
    benzyl alcohol 420.34
    2-ethylhexanol 450.65
    isooctanol 244.77
    dipropyl ether 714.65
    1,2-dichlorobenzene 889.23
    ethyl lactate 246.73
    propylene carbonate 887.05
    n-methylformamide 706.83
    2-pentanol 435.55
    n-pentane 202.43
    1-propoxy-2-propanol 626.74
    1-methoxy-2-propyl acetate 572.45
    2-(2-methoxypropoxy) propanol 391.8
    mesitylene 234.38
    ε-caprolactone 1207.61
    p-cymene 235.1
    epichlorohydrin 1843.97
    1,1,1-trichloroethane 1765.21
    2-aminoethanol 304.77
    morpholine-4-carbaldehyde 1294.51
    sulfolane 1861.37
    2,2,4-trimethylpentane 107.38
    2-methyltetrahydrofuran 1359.17
    n-hexyl acetate 650.38
    isooctane 78.92
    2-(2-butoxyethoxy)ethanol 565.87
    sec-butyl acetate 442.65
    tert-butyl acetate 501.88
    decalin 140.45
    glycerin 244.96
    diglyme 1076.3
    acrylic acid 545.31
    isopropyl myristate 249.2
    n-butyric acid 934.45
    acetyl acetate 536.68
    di(2-ethylhexyl) phthalate 215.69
    ethyl propionate 589.17
    nitromethane 1300.3
    1,2-diethoxyethane 986.79
    benzonitrile 870.54
    trioctyl phosphate 170.4
    1-bromopropane 1365.2
    gamma-valerolactone 1572.1
    n-decanol 204.26
    triethyl phosphate 230.86
    4-methyl-2-pentanol 244.19
    propionitrile 923.34
    vinylene carbonate 884.06
    1,1,2-trichlorotrifluoroethane 926.97
    DMS 424.42
    cumene 219.72
    2-octanol 228.84
    2-hexanone 750.79
    octyl acetate 317.13
    limonene 349.57
    1,2-dimethoxyethane 1127.19
    ethyl orthosilicate 229.45
    tributyl phosphate 242.61
    diacetone alcohol 434.61
    N,N-dimethylaniline 385.51
    acrylonitrile 1003.59
    aniline 712.05
    1,3-propanediol 452.78
    bromobenzene 1378.92
    dibromomethane 2621.97
    1,1,2,2-tetrachloroethane 2079.8
    2-methyl-cyclohexyl acetate 399.95
    tetrabutyl urea 296.27
    diisobutyl methanol 233.71
    2-phenylethanol 485.22
    styrene 470.66
    dioctyl adipate 314.91
    dimethyl sulfate 481.51
    ethyl butyrate 727.05
    methyl lactate 261.45
    butyl lactate 327.96
    diethyl carbonate 402.17
    propanediol butyl ether 381.95
    triethyl orthoformate 378.04
    p-tert-butyltoluene 208.08
    methyl 4-tert-butylbenzoate 357.46
    morpholine 1488.01
    tert-butylamine 448.43
    n-dodecanol 164.4
    dimethoxymethane 844.91
    ethylene carbonate 745.87
    cyrene 343.13
    2-ethoxyethyl acetate 598.24
    2-ethylhexyl acetate 671.29
    1,2,4-trichlorobenzene 956.45
    4-methylpyridine 1582.46
    dibutyl ether 639.48
    2,6-dimethyl-4-heptanol 233.71
    DEF 1076.02
    dimethyl isosorbide 678.36
    tetrachloroethylene 1574.27
    eugenol 389.68
    triacetin 433.63
    span 80 373.06
    1,4-butanediol 222.88
    1,1-dichloroethane 1856.19
    2-methyl-1-pentanol 475.89
    methyl formate 538.25
    2-methyl-1-butanol 554.62
    n-decane 96.32
    butyronitrile 1005.29
    3,7-dimethyl-1-octanol 326.3
    1-chlorooctane 338.62
    1-chlorotetradecane 138.49
    n-nonane 107.27
    undecane 72.94
    tert-butylcyclohexane 141.3
    cyclooctane 101.48
    cyclopentanol 630.9
    tetrahydropyran 1360.39
    tert-amyl methyl ether 524.91
    2,5,8-trioxanonane 657.23
    1-hexene 642.75
    2-isopropoxyethanol 442.68
    2,2,2-trifluoroethanol 241.74
    methyl butyrate 836.93

    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