2-Acetyl-6-methylpyridine

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  • Identifiers

    CAS number
    6940-57-4

    Molecular formula
    C8H9NO

    SMILES
    CC1=NC(=CC=C1)C(=O)C

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Nutty 72.82%
    Roasted 64.18%
    Popcorn 49.95%
    Green 48.7%
    Hazelnut 44.23%
    Musty 43.98%
    Burnt 40.66%
    Earthy 39.74%
    Herbal 34.9%
    Caramellic 34.14%

     

    Flavor
    Nutty 60.6%
    Popcorn 51.06%
    Roasted 43.27%
    Roast 40.89%
    Cocoa 40.33%
    Musty 40.1%
    Corn 39.87%
    Coffee 38.89%
    Burnt 35.46%
    Chocolate 35.27%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.3

    pKa est.
    5.77 (weak acid)

    Molecular weight
    135.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    213°C

    Flash point

    • 85.15 ˚C est.

  • Synonyms

    • 2-Acetyl-6-methylpyridine
    • 6940-57-4
    • 1-(6-methylpyridin-2-yl)ethanone
    • Ketone, methyl 6-methyl-2-pyridyl
    • 1-(6-Methyl-2-pyridinyl)ethanone
    • 6-Acetyl-2-picoline
    • 6-methyl-2-acetylpyridine
    • AWB2JUD65K
    • ETHANONE, 1-(6-METHYL-2-PYRIDINYL)-
    • NSC-60153
    • DTXSID90219528
    • NSC 60153
    • Methyl 6-methyl-2-pyridyl ketone, 8CI
    • 1-(6-Methyl-2-pyridinyl)ethanone, 9CI
    • RefChem:84986
    • DTXCID40142019
    • FPQMUQPPAYCAME-UHFFFAOYSA-N
    • 1-(6-Methylpyridin-2-yl)ethan-1-one
    • 1-(6-METHYL-PYRIDIN-2-YL)-ETHANONE
    • MFCD06658293
    • NSC60153
    • UNII-AWB2JUD65K
    • 2-Acetyl-6-methyl-pyridine
    • SCHEMBL247491
    • orb3023413
    • SCHEMBL29590328
    • CHEBI:179151
    • CS-D0743
    • BBL101421
    • SBB068974
    • STL555217
    • 1-(6-Methyl-2-pyridinyl)ethanone #
    • AKOS012863539
    • 2-acetyl-6-methylpyridine, AldrichCPR
    • AB25782
    • AC-5079
    • SY015030
    • TS-01744
    • A3214
    • NS00114043
    • EN300-176876
    • F215987
    • A1-00826
    • doi:10.14272/FPQMUQPPAYCAME-UHFFFAOYSA-N.1
    • 6940-57-4

  • Applications

    2-Acetyl-6-methylpyridine (CAS number: 6940-57-4) is used primarily as an organic synthesis intermediate with applications in fragrance development, where it can function as a fragrance ingredient or aroma precursor; it may also be explored as a flavor/aroma intermediate in specialized formulations. In pharmaceutical development, it serves as a building block for the synthesis of heterocyclic compounds and related intermediates, while in the agrochemical sector it is used similarly as a precursor for active ingredients or intermediates in crop protection chemistries.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 290.51
    methanol 489.3
    isopropanol 223.16
    water 10.72
    ethyl acetate 244.39
    n-propanol 246.04
    acetone 354.39
    n-butanol 207.53
    acetonitrile 209.56
    DMF 720.75
    toluene 126.57
    isobutanol 187.4
    1,4-dioxane 507.24
    methyl acetate 269.94
    THF 445.62
    2-butanone 295.09
    n-pentanol 146.79
    sec-butanol 200.84
    n-hexane 29.24
    ethylene glycol 160.58
    NMP 535.57
    cyclohexane 20.38
    DMSO 589.83
    n-butyl acetate 127.98
    n-octanol 107.3
    chloroform 537.1
    n-propyl acetate 113.72
    acetic acid 180.75
    dichloromethane 580.15
    cyclohexanone 322.84
    propylene glycol 142.6
    isopropyl acetate 128.09
    DMAc 656.72
    2-ethoxyethanol 250.06
    isopentanol 163.24
    n-heptane 18.45
    ethyl formate 210.98
    1,2-dichloroethane 336.58
    n-hexanol 154.98
    2-methoxyethanol 488.55
    isobutyl acetate 80.16
    tetrachloromethane 93.61
    n-pentyl acetate 102.36
    transcutol 430.83
    n-heptanol 88.18
    ethylbenzene 86.24
    MIBK 140.07
    2-propoxyethanol 277.06
    tert-butanol 221.66
    MTBE 206.88
    2-butoxyethanol 153.77
    propionic acid 192.26
    o-xylene 106.76
    formic acid 121.89
    diethyl ether 211.19
    m-xylene 106.79
    p-xylene 108.33
    chlorobenzene 179.07
    dimethyl carbonate 124.54
    n-octane 12.57
    formamide 138.63
    cyclopentanone 408.76
    2-pentanone 225.71
    anisole 191.38
    cyclopentyl methyl ether 230.04
    gamma-butyrolactone 438.42
    1-methoxy-2-propanol 325.37
    pyridine 247.78
    3-pentanone 197.82
    furfural 424.07
    n-dodecane 13.22
    diethylene glycol 265.21
    diisopropyl ether 60.69
    tert-amyl alcohol 196.56
    acetylacetone 266.88
    n-hexadecane 14.71
    acetophenone 168.54
    methyl propionate 230.35
    isopentyl acetate 117.48
    trichloroethylene 530.96
    n-nonanol 88.78
    cyclohexanol 157.6
    benzyl alcohol 147.15
    2-ethylhexanol 94.62
    isooctanol 73.33
    dipropyl ether 91.32
    1,2-dichlorobenzene 180.06
    ethyl lactate 100.77
    propylene carbonate 233.51
    n-methylformamide 324.08
    2-pentanol 134.45
    n-pentane 23.06
    1-propoxy-2-propanol 169.22
    1-methoxy-2-propyl acetate 151.95
    2-(2-methoxypropoxy) propanol 142.36
    mesitylene 69.71
    ε-caprolactone 275.68
    p-cymene 56.41
    epichlorohydrin 467.0
    1,1,1-trichloroethane 281.22
    2-aminoethanol 207.49
    morpholine-4-carbaldehyde 527.89
    sulfolane 529.0
    2,2,4-trimethylpentane 19.09
    2-methyltetrahydrofuran 325.59
    n-hexyl acetate 160.09
    isooctane 14.33
    2-(2-butoxyethoxy)ethanol 182.81
    sec-butyl acetate 84.93
    tert-butyl acetate 129.56
    decalin 26.57
    glycerin 214.61
    diglyme 339.27
    acrylic acid 177.99
    isopropyl myristate 64.69
    n-butyric acid 203.55
    acetyl acetate 144.92
    di(2-ethylhexyl) phthalate 69.39
    ethyl propionate 127.88
    nitromethane 378.07
    1,2-diethoxyethane 155.16
    benzonitrile 190.08
    trioctyl phosphate 53.82
    1-bromopropane 206.99
    gamma-valerolactone 469.56
    n-decanol 69.32
    triethyl phosphate 68.8
    4-methyl-2-pentanol 80.66
    propionitrile 192.93
    vinylene carbonate 241.46
    1,1,2-trichlorotrifluoroethane 293.8
    DMS 149.97
    cumene 67.5
    2-octanol 72.92
    2-hexanone 144.08
    octyl acetate 86.07
    limonene 75.42
    1,2-dimethoxyethane 375.65
    ethyl orthosilicate 65.42
    tributyl phosphate 61.28
    diacetone alcohol 173.77
    N,N-dimethylaniline 140.03
    acrylonitrile 243.94
    aniline 159.6
    1,3-propanediol 245.94
    bromobenzene 186.31
    dibromomethane 371.07
    1,1,2,2-tetrachloroethane 416.73
    2-methyl-cyclohexyl acetate 92.21
    tetrabutyl urea 86.66
    diisobutyl methanol 57.91
    2-phenylethanol 136.06
    styrene 101.31
    dioctyl adipate 87.54
    dimethyl sulfate 237.64
    ethyl butyrate 102.08
    methyl lactate 155.52
    butyl lactate 90.98
    diethyl carbonate 79.6
    propanediol butyl ether 164.66
    triethyl orthoformate 76.72
    p-tert-butyltoluene 55.69
    methyl 4-tert-butylbenzoate 135.49
    morpholine 425.22
    tert-butylamine 134.85
    n-dodecanol 55.11
    dimethoxymethane 358.29
    ethylene carbonate 193.13
    cyrene 151.55
    2-ethoxyethyl acetate 143.32
    2-ethylhexyl acetate 93.52
    1,2,4-trichlorobenzene 208.85
    4-methylpyridine 294.38
    dibutyl ether 102.83
    2,6-dimethyl-4-heptanol 57.91
    DEF 321.4
    dimethyl isosorbide 216.67
    tetrachloroethylene 275.1
    eugenol 148.84
    triacetin 133.48
    span 80 113.02
    1,4-butanediol 122.52
    1,1-dichloroethane 316.2
    2-methyl-1-pentanol 134.28
    methyl formate 284.15
    2-methyl-1-butanol 179.58
    n-decane 20.08
    butyronitrile 196.15
    3,7-dimethyl-1-octanol 91.72
    1-chlorooctane 77.01
    1-chlorotetradecane 34.76
    n-nonane 20.33
    undecane 15.8
    tert-butylcyclohexane 28.54
    cyclooctane 10.37
    cyclopentanol 196.22
    tetrahydropyran 274.94
    tert-amyl methyl ether 171.05
    2,5,8-trioxanonane 222.62
    1-hexene 86.42
    2-isopropoxyethanol 166.39
    2,2,2-trifluoroethanol 112.63
    methyl butyrate 172.25

    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