2-Undecyloxy-1-ethanol

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  • Identifiers

    CAS number
    38471-47-5

    Molecular formula
    C13H28O2

    SMILES
    CCCCCCCCCCCOCCO

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Waxy 59.91%
    Oily 53.94%
    Floral 52.67%
    Fruity 52.55%
    Fatty 51.92%
    Fresh 46.57%
    Citrus 46.03%
    Rose 41.45%
    Sweet 40.73%
    Clean 39.53%

     

    Flavor
    Waxy 70.3%
    Floral 59.05%
    Fatty 50.1%
    Rose 49.25%
    Soapy 45.06%
    Green 44.38%
    Clean 43.8%
    Mushroom 42.77%
    Fresh 41.79%
    Fat 40.03%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    4.6

    pKa est.
    6.75 (neutral)

    Molecular weight
    216.36 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    289°C

    Flash point

    • 132.7 ˚C est.

  • Synonyms

    • 2-undecyloxy-1-ethanol
    • RefChem:910282
    • 2-(UNDECYLOXY)ETHANOL
    • 38471-47-5
    • 2-undecoxyethanol
    • Ethanol, 2-(undecyloxy)-
    • 2-(Undecyloxy)ethan-1-ol
    • 2-(Undecyloxy)-ethanol
    • Undeceth-1
    • Undecyl ethyleneglycol monoether
    • MFCD06252492
    • Monochamol;
    • H0Z032IC7M
    • 34398-01-1
    • 2-undecyloxyethan-1-ol
    • UNII-H0Z032IC7M
    • orb2664733
    • SCHEMBL1683167
    • SCHEMBL4394152
    • DTXSID3058662
    • KLMGMPDXSPSCOC-UHFFFAOYSA-N
    • 2-(undecyloxy)ethanol, AldrichCPR
    • SBB061507
    • AKOS024391007
    • CS-W021053
    • HY-W040313
    • BP-14136
    • BS-22403
    • SY075389
    • NS00095569
    • ST51047509
    • D80540
    • F791745
    • Q27279434
    • 34398-01-1

  • Applications

    2-Undecyloxy-1-ethanol (CAS 38471-47-5) is commonly used as a solvent and processing aid in coatings, inks, and adhesives, where its long undecyl chain provides good solvency for hydrophobic components. It also serves as an intermediate for fragrance and cosmetic chemistry, enabling the synthesis of alkyl glycol ethers and related aroma compounds. In household and industrial cleaning formulations it acts as a co-solvent and surfactant component, helping solubility and formulation stability. In polymer and plastics processing it can function as a reactive or non-reactive plasticizer/co-solvent to adjust viscosity and flexibility. Additionally, it may be used as a fragrance solvent or building block in perfumery. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2443.27
    methanol 1884.4
    isopropanol 2653.91
    water 0.04
    ethyl acetate 2413.14
    n-propanol 2424.98
    acetone 2710.49
    n-butanol 2474.04
    acetonitrile 1078.92
    DMF 1113.3
    toluene 529.93
    isobutanol 1838.99
    1,4-dioxane 2864.82
    methyl acetate 1273.86
    THF 5088.24
    2-butanone 2004.06
    n-pentanol 1449.52
    sec-butanol 2113.45
    n-hexane 894.74
    ethylene glycol 125.98
    NMP 1014.02
    cyclohexane 2140.04
    DMSO 3587.34
    n-butyl acetate 2531.21
    n-octanol 595.04
    chloroform 3102.46
    n-propyl acetate 2211.62
    acetic acid 1011.76
    dichloromethane 3266.12
    cyclohexanone 3525.11
    propylene glycol 329.69
    isopropyl acetate 1600.95
    DMAc 825.65
    2-ethoxyethanol 1704.23
    isopentanol 2119.74
    n-heptane 864.19
    ethyl formate 986.37
    1,2-dichloroethane 2800.14
    n-hexanol 1564.82
    2-methoxyethanol 2363.45
    isobutyl acetate 1125.64
    tetrachloromethane 817.57
    n-pentyl acetate 1391.36
    transcutol 4218.38
    n-heptanol 679.1
    ethylbenzene 389.81
    MIBK 1333.22
    2-propoxyethanol 1798.03
    tert-butanol 3222.98
    MTBE 2612.01
    2-butoxyethanol 1162.47
    propionic acid 952.12
    o-xylene 370.93
    formic acid 133.49
    diethyl ether 3602.94
    m-xylene 387.75
    p-xylene 481.14
    chlorobenzene 787.59
    dimethyl carbonate 204.93
    n-octane 212.62
    formamide 251.23
    cyclopentanone 2667.19
    2-pentanone 2418.06
    anisole 648.58
    cyclopentyl methyl ether 2693.13
    gamma-butyrolactone 2190.73
    1-methoxy-2-propanol 2049.12
    pyridine 1778.14
    3-pentanone 1348.59
    furfural 1360.32
    n-dodecane 76.34
    diethylene glycol 694.52
    diisopropyl ether 981.87
    tert-amyl alcohol 2157.68
    acetylacetone 1533.19
    n-hexadecane 92.36
    acetophenone 638.81
    methyl propionate 1158.56
    isopentyl acetate 1807.51
    trichloroethylene 3144.37
    n-nonanol 522.1
    cyclohexanol 2537.32
    benzyl alcohol 534.3
    2-ethylhexanol 1192.32
    isooctanol 663.17
    dipropyl ether 2964.38
    1,2-dichlorobenzene 749.54
    ethyl lactate 505.21
    propylene carbonate 1213.53
    n-methylformamide 649.68
    2-pentanol 1945.13
    n-pentane 711.8
    1-propoxy-2-propanol 2036.19
    1-methoxy-2-propyl acetate 1304.77
    2-(2-methoxypropoxy) propanol 599.43
    mesitylene 302.36
    ε-caprolactone 2544.83
    p-cymene 370.26
    epichlorohydrin 2844.64
    1,1,1-trichloroethane 2364.54
    2-aminoethanol 497.09
    morpholine-4-carbaldehyde 1406.64
    sulfolane 2412.76
    2,2,4-trimethylpentane 222.29
    2-methyltetrahydrofuran 3881.41
    n-hexyl acetate 1374.88
    isooctane 178.66
    2-(2-butoxyethoxy)ethanol 1033.02
    sec-butyl acetate 1378.8
    tert-butyl acetate 1727.0
    decalin 360.92
    glycerin 350.72
    diglyme 2377.58
    acrylic acid 472.98
    isopropyl myristate 445.14
    n-butyric acid 2560.51
    acetyl acetate 938.24
    di(2-ethylhexyl) phthalate 263.33
    ethyl propionate 1517.15
    nitromethane 1569.8
    1,2-diethoxyethane 2594.03
    benzonitrile 758.87
    trioctyl phosphate 261.04
    1-bromopropane 2667.13
    gamma-valerolactone 2966.15
    n-decanol 335.94
    triethyl phosphate 531.56
    4-methyl-2-pentanol 919.4
    propionitrile 1353.85
    vinylene carbonate 827.38
    1,1,2-trichlorotrifluoroethane 1637.04
    DMS 507.62
    cumene 285.67
    2-octanol 506.64
    2-hexanone 1833.82
    octyl acetate 494.55
    limonene 819.61
    1,2-dimethoxyethane 3235.75
    ethyl orthosilicate 613.67
    tributyl phosphate 356.88
    diacetone alcohol 1445.96
    N,N-dimethylaniline 407.4
    acrylonitrile 968.38
    aniline 696.45
    1,3-propanediol 1071.73
    bromobenzene 867.88
    dibromomethane 2722.05
    1,1,2,2-tetrachloroethane 3038.01
    2-methyl-cyclohexyl acetate 946.5
    tetrabutyl urea 431.33
    diisobutyl methanol 767.41
    2-phenylethanol 559.71
    styrene 484.66
    dioctyl adipate 604.58
    dimethyl sulfate 346.13
    ethyl butyrate 1962.23
    methyl lactate 371.13
    butyl lactate 804.19
    diethyl carbonate 853.15
    propanediol butyl ether 723.21
    triethyl orthoformate 1272.94
    p-tert-butyltoluene 348.55
    methyl 4-tert-butylbenzoate 554.48
    morpholine 4193.58
    tert-butylamine 2345.07
    n-dodecanol 246.14
    dimethoxymethane 1228.66
    ethylene carbonate 990.52
    cyrene 463.77
    2-ethoxyethyl acetate 1274.14
    2-ethylhexyl acetate 1450.39
    1,2,4-trichlorobenzene 756.03
    4-methylpyridine 1436.37
    dibutyl ether 1831.24
    2,6-dimethyl-4-heptanol 767.41
    DEF 1795.55
    dimethyl isosorbide 1057.97
    tetrachloroethylene 2173.4
    eugenol 453.95
    triacetin 846.46
    span 80 682.47
    1,4-butanediol 375.19
    1,1-dichloroethane 2644.62
    2-methyl-1-pentanol 1134.34
    methyl formate 394.58
    2-methyl-1-butanol 1685.46
    n-decane 198.8
    butyronitrile 1916.48
    3,7-dimethyl-1-octanol 680.74
    1-chlorooctane 615.5
    1-chlorotetradecane 176.77
    n-nonane 236.24
    undecane 112.98
    tert-butylcyclohexane 291.94
    cyclooctane 445.29
    cyclopentanol 2169.26
    tetrahydropyran 5881.03
    tert-amyl methyl ether 1570.76
    2,5,8-trioxanonane 1149.61
    1-hexene 1802.92
    2-isopropoxyethanol 1257.87
    2,2,2-trifluoroethanol 238.46
    methyl butyrate 2218.15

    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