2-Ethyl-4-methylpentanol

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  • Identifiers

    CAS number
    106-67-2

    Molecular formula
    C8H18O

    SMILES
    CCC(CC(C)C)CO

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Oily 51.39%
    Fermented 50.2%
    Sweet 45.12%
    Alcoholic 44.34%
    Floral 37.25%
    Mint 35.26%
    Solvent 35.06%
    Fresh 34.42%
    Herbal 33.66%
    Green 33.09%

     

    Flavor
    Green 44.69%
    Fresh 36.65%
    Floral 36.45%
    Citrus 32.51%
    Oily 31.39%
    Mild 30.34%
    Waxy 29.33%
    Herbal 26.25%
    Musty 26.15%
    Fruity 25.33%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    2.4

    pKa est.
    9.33 (weak base)

    Molecular weight
    130.23 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    174°C

    Flash point

    • 68.39 ˚C est.

  • Synonyms

    • 2-Ethyl-4-methylpentan-1-ol
    • 2-Ethyl-4-methylpentanol
    • 2-Ethyl-4-methyl-1-pentanol
    • 1-Pentanol, 2-ethyl-4-methyl-
    • BRN 1697441
    • EINECS 203-422-5
    • 80V2E9GXUZ
    • UNII-80V2E9GXUZ
    • QCHSJPKDWOFACC-UHFFFAOYSA-
    • DTXSID90861723
    • 4-01-00-01792 (Beilstein Handbook Reference)
    • RefChem:86906
    • DTXCID80810609
    • InChI=1/C8H18O/c1-4-8(6-9)5-7(2)3/h7-9H,4-6H2,1-3H3
    • QCHSJPKDWOFACC-UHFFFAOYSA-N
    • 106-67-2
    • 2-Ethylisohexanol
    • MFCD01709207
    • 111767-90-9
    • 1-pentanol,2-ethyl-4-methyl-
    • 2-ethyl-4-methyl-pentan-1-ol
    • SCHEMBL135878
    • QSPL 107
    • SCHEMBL4397625
    • SCHEMBL10406507
    • CHEBI:89186
    • AAA10667
    • AKOS014320379
    • AS-76101
    • DB-314013
    • CS-0152610
    • NS00041378
    • A10715
    • EN300-7276493
    • F694935
    • Q27161372
    • 106-67-2

  • Applications

    2-Ethyl-4-methylpentanol (CAS 106-67-2) is used as a versatile solvent and processing aid across multiple industrial formulations; in perfumery and cosmetics, it functions as a fragrance ingredient and solvent for actives; in coatings and inks, it serves as a co-solvent to adjust viscosity and aid film formation; in industrial manufacturing, it supports formulation stability and cleaning steps as a general solvent; and it is also employed as an intermediate in organic synthesis for building more complex compounds. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1058.99
    methanol 936.53
    isopropanol 1141.46
    water 0.69
    ethyl acetate 393.43
    n-propanol 972.89
    acetone 555.08
    n-butanol 977.2
    acetonitrile 381.96
    DMF 320.96
    toluene 143.76
    isobutanol 818.91
    1,4-dioxane 817.56
    methyl acetate 369.34
    THF 1496.4
    2-butanone 521.02
    n-pentanol 564.16
    sec-butanol 921.64
    n-hexane 227.3
    ethylene glycol 162.42
    NMP 399.01
    cyclohexane 204.6
    DMSO 539.76
    n-butyl acetate 866.11
    n-octanol 383.98
    chloroform 1011.69
    n-propyl acetate 356.24
    acetic acid 480.9
    dichloromethane 632.66
    cyclohexanone 757.8
    propylene glycol 304.69
    isopropyl acetate 290.17
    DMAc 216.4
    2-ethoxyethanol 444.94
    isopentanol 804.3
    n-heptane 238.49
    ethyl formate 277.37
    1,2-dichloroethane 408.32
    n-hexanol 1310.66
    2-methoxyethanol 719.26
    isobutyl acetate 266.41
    tetrachloromethane 279.46
    n-pentyl acetate 330.53
    transcutol 1025.83
    n-heptanol 476.72
    ethylbenzene 113.55
    MIBK 320.1
    2-propoxyethanol 1061.67
    tert-butanol 1402.98
    MTBE 874.48
    2-butoxyethanol 569.21
    propionic acid 484.75
    o-xylene 116.32
    formic acid 109.85
    diethyl ether 534.77
    m-xylene 141.96
    p-xylene 148.05
    chlorobenzene 237.77
    dimethyl carbonate 60.99
    n-octane 74.99
    formamide 88.57
    cyclopentanone 787.41
    2-pentanone 441.84
    anisole 203.66
    cyclopentyl methyl ether 606.63
    gamma-butyrolactone 738.19
    1-methoxy-2-propanol 587.5
    pyridine 412.17
    3-pentanone 261.01
    furfural 509.35
    n-dodecane 42.15
    diethylene glycol 535.28
    diisopropyl ether 234.5
    tert-amyl alcohol 943.38
    acetylacetone 310.68
    n-hexadecane 46.66
    acetophenone 173.7
    methyl propionate 242.7
    isopentyl acetate 730.92
    trichloroethylene 721.72
    n-nonanol 305.7
    cyclohexanol 714.98
    benzyl alcohol 187.46
    2-ethylhexanol 699.76
    isooctanol 395.08
    dipropyl ether 655.41
    1,2-dichlorobenzene 230.5
    ethyl lactate 159.71
    propylene carbonate 424.61
    n-methylformamide 237.4
    2-pentanol 655.04
    n-pentane 165.88
    1-propoxy-2-propanol 954.32
    1-methoxy-2-propyl acetate 450.47
    2-(2-methoxypropoxy) propanol 318.42
    mesitylene 115.18
    ε-caprolactone 594.42
    p-cymene 158.93
    epichlorohydrin 715.61
    1,1,1-trichloroethane 576.85
    2-aminoethanol 387.15
    morpholine-4-carbaldehyde 440.36
    sulfolane 793.65
    2,2,4-trimethylpentane 95.06
    2-methyltetrahydrofuran 1071.23
    n-hexyl acetate 460.32
    isooctane 103.03
    2-(2-butoxyethoxy)ethanol 496.15
    sec-butyl acetate 237.16
    tert-butyl acetate 384.38
    decalin 94.85
    glycerin 303.15
    diglyme 728.91
    acrylic acid 295.34
    isopropyl myristate 185.52
    n-butyric acid 821.17
    acetyl acetate 180.3
    di(2-ethylhexyl) phthalate 152.79
    ethyl propionate 230.43
    nitromethane 400.38
    1,2-diethoxyethane 460.77
    benzonitrile 289.57
    trioctyl phosphate 150.59
    1-bromopropane 461.86
    gamma-valerolactone 830.77
    n-decanol 225.24
    triethyl phosphate 145.33
    4-methyl-2-pentanol 405.98
    propionitrile 484.27
    vinylene carbonate 310.77
    1,1,2-trichlorotrifluoroethane 483.73
    DMS 166.65
    cumene 109.2
    2-octanol 314.57
    2-hexanone 406.91
    octyl acetate 221.26
    limonene 297.63
    1,2-dimethoxyethane 646.5
    ethyl orthosilicate 166.34
    tributyl phosphate 163.98
    diacetone alcohol 461.08
    N,N-dimethylaniline 139.39
    acrylonitrile 372.42
    aniline 210.35
    1,3-propanediol 588.61
    bromobenzene 233.13
    dibromomethane 551.84
    1,1,2,2-tetrachloroethane 675.39
    2-methyl-cyclohexyl acetate 334.86
    tetrabutyl urea 181.4
    diisobutyl methanol 386.34
    2-phenylethanol 335.8
    styrene 123.84
    dioctyl adipate 203.29
    dimethyl sulfate 106.81
    ethyl butyrate 431.18
    methyl lactate 158.56
    butyl lactate 286.63
    diethyl carbonate 221.68
    propanediol butyl ether 449.12
    triethyl orthoformate 308.52
    p-tert-butyltoluene 164.09
    methyl 4-tert-butylbenzoate 242.84
    morpholine 894.17
    tert-butylamine 1030.1
    n-dodecanol 173.82
    dimethoxymethane 254.85
    ethylene carbonate 291.97
    cyrene 227.77
    2-ethoxyethyl acetate 302.56
    2-ethylhexyl acetate 534.0
    1,2,4-trichlorobenzene 257.1
    4-methylpyridine 384.81
    dibutyl ether 393.02
    2,6-dimethyl-4-heptanol 386.34
    DEF 312.5
    dimethyl isosorbide 492.18
    tetrachloroethylene 487.48
    eugenol 238.49
    triacetin 247.81
    span 80 386.59
    1,4-butanediol 225.53
    1,1-dichloroethane 624.29
    2-methyl-1-pentanol 448.29
    methyl formate 169.4
    2-methyl-1-butanol 689.04
    n-decane 79.23
    butyronitrile 643.73
    3,7-dimethyl-1-octanol 381.36
    1-chlorooctane 240.1
    1-chlorotetradecane 88.29
    n-nonane 89.19
    undecane 54.25
    tert-butylcyclohexane 121.0
    cyclooctane 75.81
    cyclopentanol 749.29
    tetrahydropyran 1066.16
    tert-amyl methyl ether 477.46
    2,5,8-trioxanonane 453.51
    1-hexene 475.03
    2-isopropoxyethanol 379.61
    2,2,2-trifluoroethanol 117.6
    methyl butyrate 352.97

    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