5,6,7,8-Tetrahydro-2,4-dimethylquinoline

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  • Identifiers

    CAS number
    60169-66-6

    Molecular formula
    C11H15N

    SMILES
    CC1=CC(=NC2=C1CCCC2)C

    Safety labels

  • Odor profile

    Fragrance
    Animal 54.62%
    Earthy 48.14%
    Leathery 41.19%
    Musty 41.15%
    Nutty 39.66%
    Tobacco 37.06%
    Woody 35.04%
    Roasted 33.51%
    Sweet 32.69%
    Burnt 31.12%

     

    Flavor
    Earthy 37.94%
    Musty 37.79%
    Roasted 37.64%
    Nutty 33.24%
    Coffee 31.56%
    Cocoa 25.78%
    Burnt 25.27%
    Roast 25.06%
    Woody 24.53%
    Soybean 23.92%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.8

    pKa est.
    6.69 (neutral)

    Molecular weight
    161.24 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately slow

    Boiling point est.
    241°C

    Melting point expt.

    • 19 - 20 °C

    Flash point

    • 93.03 ˚C est.

  • Synonyms

    • 5,6,7,8-Tetrahydro-2,4-dimethylquinoline
    • 2,4-dimethyl-5,6,7,8-tetrahydroquinoline
    • 60169-66-6
    • RefChem:101085
    • 2,4-dimethyl-5,6,7,8-tetrahydro-quinoline
    • NF9GWK3BH2
    • SCHEMBL527227
    • SCHEMBL29621658
    • CHEBI:231281
    • DTXSID801276347
    • Quinoline, 5,6,7,8-tetrahydro-2,4-dimethyl-
    • 60169-66-6

  • Applications

    5,6,7,8-Tetrahydro-2,4-dimethylquinoline (CAS 60169-66-6) is a hydrogenated quinoline derivative that is primarily used as an organic synthesis intermediate in pharmaceuticals and agrochemicals, serving as a building block for heterocyclic compounds and for quinoline-based scaffolds with potential biological activity. It is also employed as a precursor for ligands in organometallic catalysis and as a component in polymer systems containing nitrogen-containing rings. Additionally, due to its nitrogen-containing heterocyclic structure, it may be considered as a fragrance precursor or ingredient in perfumery and cosmetics, and it can be explored for coatings/inks applications where such heterocycles are valued.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 451.03
    methanol 523.12
    isopropanol 320.73
    water 0.81
    ethyl acetate 802.04
    n-propanol 438.99
    acetone 865.87
    n-butanol 441.71
    acetonitrile 885.58
    DMF 978.96
    toluene 1015.07
    isobutanol 363.31
    1,4-dioxane 1849.28
    methyl acetate 773.4
    THF 2172.55
    2-butanone 787.78
    n-pentanol 331.67
    sec-butanol 348.97
    n-hexane 367.89
    ethylene glycol 70.96
    NMP 1094.17
    cyclohexane 669.04
    DMSO 754.45
    n-butyl acetate 1203.99
    n-octanol 415.02
    chloroform 3068.05
    n-propyl acetate 537.9
    acetic acid 335.41
    dichloromethane 3287.92
    cyclohexanone 1591.84
    propylene glycol 86.05
    isopropyl acetate 451.77
    DMAc 665.95
    2-ethoxyethanol 328.7
    isopentanol 371.94
    n-heptane 459.46
    ethyl formate 617.89
    1,2-dichloroethane 1816.59
    n-hexanol 806.33
    2-methoxyethanol 495.55
    isobutyl acetate 398.23
    tetrachloromethane 775.98
    n-pentyl acetate 569.4
    transcutol 975.42
    n-heptanol 354.92
    ethylbenzene 497.81
    MIBK 450.89
    2-propoxyethanol 775.93
    tert-butanol 375.97
    MTBE 624.74
    2-butoxyethanol 417.31
    propionic acid 371.65
    o-xylene 577.26
    formic acid 86.22
    diethyl ether 997.07
    m-xylene 662.71
    p-xylene 614.02
    chlorobenzene 1271.48
    dimethyl carbonate 352.41
    n-octane 180.83
    formamide 142.68
    cyclopentanone 1598.09
    2-pentanone 733.41
    anisole 606.5
    cyclopentyl methyl ether 1195.08
    gamma-butyrolactone 1572.26
    1-methoxy-2-propanol 377.82
    pyridine 1499.8
    3-pentanone 704.86
    furfural 1130.34
    n-dodecane 128.96
    diethylene glycol 352.45
    diisopropyl ether 350.51
    tert-amyl alcohol 345.25
    acetylacetone 712.42
    n-hexadecane 151.39
    acetophenone 504.88
    methyl propionate 657.66
    isopentyl acetate 808.38
    trichloroethylene 2669.04
    n-nonanol 346.4
    cyclohexanol 632.9
    benzyl alcohol 379.53
    2-ethylhexanol 558.3
    isooctanol 280.29
    dipropyl ether 987.71
    1,2-dichlorobenzene 990.37
    ethyl lactate 200.75
    propylene carbonate 874.08
    n-methylformamide 501.81
    2-pentanol 306.58
    n-pentane 301.12
    1-propoxy-2-propanol 552.34
    1-methoxy-2-propyl acetate 635.91
    2-(2-methoxypropoxy) propanol 348.25
    mesitylene 442.63
    ε-caprolactone 1174.77
    p-cymene 425.65
    epichlorohydrin 1648.4
    1,1,1-trichloroethane 1579.98
    2-aminoethanol 140.17
    morpholine-4-carbaldehyde 1131.79
    sulfolane 1430.3
    2,2,4-trimethylpentane 128.74
    2-methyltetrahydrofuran 1513.4
    n-hexyl acetate 774.31
    isooctane 105.16
    2-(2-butoxyethoxy)ethanol 465.79
    sec-butyl acetate 343.92
    tert-butyl acetate 438.36
    decalin 259.25
    glycerin 116.41
    diglyme 922.74
    acrylic acid 298.85
    isopropyl myristate 333.14
    n-butyric acid 533.65
    acetyl acetate 466.8
    di(2-ethylhexyl) phthalate 266.29
    ethyl propionate 499.27
    nitromethane 737.53
    1,2-diethoxyethane 892.93
    benzonitrile 788.41
    trioctyl phosphate 210.02
    1-bromopropane 1302.26
    gamma-valerolactone 1475.11
    n-decanol 269.45
    triethyl phosphate 290.49
    4-methyl-2-pentanol 199.56
    propionitrile 798.9
    vinylene carbonate 881.75
    1,1,2-trichlorotrifluoroethane 620.23
    DMS 578.15
    cumene 338.37
    2-octanol 290.09
    2-hexanone 577.08
    octyl acetate 415.16
    limonene 650.53
    1,2-dimethoxyethane 921.13
    ethyl orthosilicate 282.65
    tributyl phosphate 267.08
    diacetone alcohol 337.58
    N,N-dimethylaniline 441.49
    acrylonitrile 827.34
    aniline 617.37
    1,3-propanediol 231.91
    bromobenzene 1577.61
    dibromomethane 2224.74
    1,1,2,2-tetrachloroethane 1833.59
    2-methyl-cyclohexyl acetate 480.86
    tetrabutyl urea 345.59
    diisobutyl methanol 290.18
    2-phenylethanol 530.81
    styrene 600.32
    dioctyl adipate 382.18
    dimethyl sulfate 454.62
    ethyl butyrate 685.04
    methyl lactate 197.29
    butyl lactate 300.92
    diethyl carbonate 424.14
    propanediol butyl ether 300.22
    triethyl orthoformate 427.58
    p-tert-butyltoluene 376.3
    methyl 4-tert-butylbenzoate 444.85
    morpholine 1467.6
    tert-butylamine 348.35
    n-dodecanol 225.52
    dimethoxymethane 888.9
    ethylene carbonate 834.66
    cyrene 323.15
    2-ethoxyethyl acetate 652.63
    2-ethylhexyl acetate 769.77
    1,2,4-trichlorobenzene 981.07
    4-methylpyridine 1361.88
    dibutyl ether 761.62
    2,6-dimethyl-4-heptanol 290.18
    DEF 829.21
    dimethyl isosorbide 701.99
    tetrachloroethylene 1309.51
    eugenol 376.93
    triacetin 488.64
    span 80 361.26
    1,4-butanediol 120.68
    1,1-dichloroethane 1568.97
    2-methyl-1-pentanol 319.14
    methyl formate 552.91
    2-methyl-1-butanol 370.71
    n-decane 211.57
    butyronitrile 837.57
    3,7-dimethyl-1-octanol 355.62
    1-chlorooctane 544.45
    1-chlorotetradecane 228.71
    n-nonane 231.76
    undecane 161.34
    tert-butylcyclohexane 208.52
    cyclooctane 291.67
    cyclopentanol 633.02
    tetrahydropyran 1844.19
    tert-amyl methyl ether 506.56
    2,5,8-trioxanonane 612.52
    1-hexene 683.67
    2-isopropoxyethanol 271.36
    2,2,2-trifluoroethanol 147.86
    methyl butyrate 595.36

    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