6-Undecanol

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  • Identifiers

    CAS number
    23708-56-7

    Molecular formula
    C11H24O

    SMILES
    CCCCCC(CCCCC)O

    Safety labels

    Flammable
    Flammable

  • Odor profile

    Fragrance
    Oily 74.38%
    Green 74.34%
    Herbal 62.54%
    Fatty 59.5%
    Earthy 58.66%
    Fruity 57.7%
    Mushroom 54.44%
    Musty 51.02%
    Sweet 49.21%
    Waxy 46.1%

     

    Flavor
    Floral 53.44%
    Fresh 49.93%
    Citrus 48.94%
    Green 45.82%
    Fatty 45.73%
    Waxy 44.82%
    Mushroom 43.2%
    Herbal 40.4%
    Fat 39.17%
    Earthy 38.28%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    4.3

    pKa est.
    8.52 (weak base)

    Molecular weight
    172.31 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    227°C

    Flash point

    • 97.36 ˚C est.

  • Synonyms

    • 6-UNDECANOL
    • 23708-56-7
    • Undecan-6-ol
    • Undecanol-6
    • Diamyl carbinol
    • EINECS 245-837-4
    • AI3-35684
    • DTXSID60178370
    • NSC 158434
    • diamylcarbinol
    • 1-pentylhexanol
    • 6-hendecanol
    • 6-hydroxyundecane
    • MFCD00021951
    • NSC158434
    • SCHEMBL327431
    • DTXCID90100861
    • CHEBI:195613
    • AKOS009156656
    • NSC-158434
    • BS-16727
    • DB-242892
    • CS-0152329
    • NS00027473
    • U0040
    • T72127
    • 245-837-4

  • Applications

    6-Undecanol (CAS 23708-56-7) is a long-chain alcohol used primarily as an intermediate in the synthesis of fragrance and flavor esters, as a solvent or carrier in cosmetics and personal care formulations, and as a building block for specialty esters and plasticizers. It can also function as an odorant or fixative component in perfumery and may serve as a reactive precursor in polymer and coating chemistries. In industrial practice it is handled as a solvent and intermediate for multi-step syntheses, with use governed by local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 6214.37
    methanol 3363.62
    isopropanol 9116.97
    water 0.04
    ethyl acetate 5768.02
    n-propanol 6528.96
    acetone 8650.62
    n-butanol 7444.85
    acetonitrile 3405.58
    DMF 3749.73
    toluene 1897.16
    isobutanol 5663.47
    1,4-dioxane 6553.62
    methyl acetate 3244.72
    THF 13812.51
    2-butanone 5879.87
    n-pentanol 4175.36
    sec-butanol 6718.81
    n-hexane 6274.24
    ethylene glycol 227.47
    NMP 2780.54
    cyclohexane 7108.68
    DMSO 4664.75
    n-butyl acetate 9104.09
    n-octanol 2160.95
    chloroform 7896.63
    n-propyl acetate 4398.01
    acetic acid 1890.03
    dichloromethane 7016.81
    cyclohexanone 8933.44
    propylene glycol 718.09
    isopropyl acetate 3957.7
    DMAc 1936.96
    2-ethoxyethanol 2449.69
    isopentanol 6170.41
    n-heptane 5392.93
    ethyl formate 2461.03
    1,2-dichloroethane 5486.03
    n-hexanol 7223.12
    2-methoxyethanol 4013.25
    isobutyl acetate 2587.85
    tetrachloromethane 2045.92
    n-pentyl acetate 3622.15
    transcutol 6797.89
    n-heptanol 2576.21
    ethylbenzene 1141.08
    MIBK 3449.82
    2-propoxyethanol 5118.12
    tert-butanol 10205.32
    MTBE 8765.52
    2-butoxyethanol 2823.27
    propionic acid 2301.97
    o-xylene 1019.25
    formic acid 187.72
    diethyl ether 10311.97
    m-xylene 1202.58
    p-xylene 1569.02
    chlorobenzene 2294.49
    dimethyl carbonate 519.13
    n-octane 1175.65
    formamide 352.73
    cyclopentanone 7423.77
    2-pentanone 6905.93
    anisole 1565.32
    cyclopentyl methyl ether 6559.35
    gamma-butyrolactone 5383.11
    1-methoxy-2-propanol 4062.78
    pyridine 5098.66
    3-pentanone 3461.55
    furfural 2903.69
    n-dodecane 440.18
    diethylene glycol 1456.63
    diisopropyl ether 3228.34
    tert-amyl alcohol 6383.59
    acetylacetone 3534.29
    n-hexadecane 522.69
    acetophenone 1327.99
    methyl propionate 2753.71
    isopentyl acetate 6502.24
    trichloroethylene 6735.01
    n-nonanol 1842.09
    cyclohexanol 6267.51
    benzyl alcohol 1152.99
    2-ethylhexanol 5089.44
    isooctanol 2202.89
    dipropyl ether 11008.59
    1,2-dichlorobenzene 1787.86
    ethyl lactate 923.24
    propylene carbonate 3045.39
    n-methylformamide 1610.28
    2-pentanol 5744.96
    n-pentane 3965.81
    1-propoxy-2-propanol 5825.12
    1-methoxy-2-propyl acetate 3496.93
    2-(2-methoxypropoxy) propanol 1357.57
    mesitylene 901.85
    ε-caprolactone 5576.66
    p-cymene 1215.39
    epichlorohydrin 5756.36
    1,1,1-trichloroethane 5614.09
    2-aminoethanol 938.38
    morpholine-4-carbaldehyde 2781.04
    sulfolane 4823.72
    2,2,4-trimethylpentane 846.3
    2-methyltetrahydrofuran 10481.51
    n-hexyl acetate 3888.86
    isooctane 859.45
    2-(2-butoxyethoxy)ethanol 2356.76
    sec-butyl acetate 2873.18
    tert-butyl acetate 3831.57
    decalin 1269.6
    glycerin 634.8
    diglyme 4355.49
    acrylic acid 1134.42
    isopropyl myristate 1400.81
    n-butyric acid 6234.94
    acetyl acetate 1955.24
    di(2-ethylhexyl) phthalate 730.66
    ethyl propionate 3023.1
    nitromethane 2768.93
    1,2-diethoxyethane 5942.99
    benzonitrile 2100.7
    trioctyl phosphate 757.38
    1-bromopropane 7338.95
    gamma-valerolactone 6572.21
    n-decanol 1260.98
    triethyl phosphate 1120.52
    4-methyl-2-pentanol 2776.59
    propionitrile 4266.58
    vinylene carbonate 1995.91
    1,1,2-trichlorotrifluoroethane 2737.73
    DMS 1246.42
    cumene 810.63
    2-octanol 1927.43
    2-hexanone 4775.97
    octyl acetate 1483.56
    limonene 2872.34
    1,2-dimethoxyethane 6366.69
    ethyl orthosilicate 1291.44
    tributyl phosphate 1038.11
    diacetone alcohol 2919.01
    N,N-dimethylaniline 1037.06
    acrylonitrile 2874.31
    aniline 1986.46
    1,3-propanediol 2201.2
    bromobenzene 2588.02
    dibromomethane 6652.22
    1,1,2,2-tetrachloroethane 6130.63
    2-methyl-cyclohexyl acetate 2353.72
    tetrabutyl urea 1221.7
    diisobutyl methanol 2660.99
    2-phenylethanol 1658.72
    styrene 1489.88
    dioctyl adipate 1561.46
    dimethyl sulfate 729.05
    ethyl butyrate 5417.08
    methyl lactate 765.41
    butyl lactate 2012.97
    diethyl carbonate 2237.88
    propanediol butyl ether 1718.43
    triethyl orthoformate 3137.83
    p-tert-butyltoluene 1195.0
    methyl 4-tert-butylbenzoate 1208.09
    morpholine 8868.25
    tert-butylamine 8608.95
    n-dodecanol 934.66
    dimethoxymethane 3068.45
    ethylene carbonate 2419.38
    cyrene 864.96
    2-ethoxyethyl acetate 2671.84
    2-ethylhexyl acetate 5245.73
    1,2,4-trichlorobenzene 1804.82
    4-methylpyridine 4703.21
    dibutyl ether 6376.73
    2,6-dimethyl-4-heptanol 2660.99
    DEF 4527.25
    dimethyl isosorbide 2173.84
    tetrachloroethylene 4050.2
    eugenol 990.72
    triacetin 1642.28
    span 80 1777.14
    1,4-butanediol 688.6
    1,1-dichloroethane 7157.26
    2-methyl-1-pentanol 3127.74
    methyl formate 932.33
    2-methyl-1-butanol 4754.01
    n-decane 1003.67
    butyronitrile 7045.3
    3,7-dimethyl-1-octanol 2325.6
    1-chlorooctane 2309.85
    1-chlorotetradecane 719.58
    n-nonane 1201.12
    undecane 621.36
    tert-butylcyclohexane 1153.27
    cyclooctane 1702.38
    cyclopentanol 5821.1
    tetrahydropyran 14604.15
    tert-amyl methyl ether 4487.67
    2,5,8-trioxanonane 2217.04
    1-hexene 8851.18
    2-isopropoxyethanol 2126.31
    2,2,2-trifluoroethanol 356.91
    methyl butyrate 4582.53

    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