Sodium undecanoate

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  • Identifiers

    CAS number
    17265-30-4

    Molecular formula
    C11H21NaO2

    SMILES
    CCCCCCCCCCC(=O)[O-].[Na+]

    Safety labels

  • Odor profile

    Fragrance
    Fatty 75.28%
    Waxy 68.43%
    Oily 41.42%
    Dairy 40.37%
    Creamy 36.58%
    Milky 35.75%
    Citrus 34.28%
    Cheesy 32.45%
    Coconut 31.68%
    Soapy 30.91%

     

    Flavor
    Fatty 53.04%
    Waxy 46.6%
    Fat 37.88%
    Coconut 33.4%
    Oily 33.14%
    Mild 30.11%
    Herbal 29.77%
    Soapy 28.85%
    Creamy 27.1%
    Woody 25.04%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    4.85 (weak acid)

    Molecular weight
    208.27 g/mol

    Flash point

    • 119.06 ˚C est.

  • Synonyms

    • Sodium undecanoate
    • 17265-30-4
    • EINECS 241-301-9
    • DTXSID00169363
    • RefChem:184148
    • DTXCID5091854
    • 241-301-9
    • sodium;undecanoate
    • Undecanoic acid, sodiumsalt (1:1)
    • C11H21NaO2
    • SCHEMBL639682
    • HY-166078
    • NS00084595
    • 17265-30-4

  • Applications

    Sodium undecanoate (CAS 17265-30-4) is the sodium salt of undecanoic acid and is commonly used as a surfactant and emulsifier. In practice, applications include: as a surfactant and emulsifier in detergents and household cleaning products; as a surfactant and emulsifier in cosmetics/personal care; as a surfactant, wetting agent, and dispersant in industrial metalworking fluids and lubricants; as a wetting agent and dispersant in coatings and inks; as a surfactant and processing aid in polymer and plastic formulations; and as an adjuvant for agricultural formulations to improve dispersion and spray performance.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1477.61
    methanol 1519.32
    isopropanol 1484.91
    water 0.02
    ethyl acetate 1373.35
    n-propanol 1175.08
    acetone 2516.35
    n-butanol 1079.15
    acetonitrile 833.56
    DMF 1796.71
    toluene 477.76
    isobutanol 964.36
    1,4-dioxane 1453.21
    methyl acetate 813.33
    THF 3321.0
    2-butanone 1573.33
    n-pentanol 925.81
    sec-butanol 1117.61
    n-hexane 692.54
    ethylene glycol 109.45
    NMP 1414.79
    cyclohexane 501.56
    DMSO 2743.1
    n-butyl acetate 1449.12
    n-octanol 405.12
    chloroform 1686.48
    n-propyl acetate 1167.94
    acetic acid 622.96
    dichloromethane 1802.07
    cyclohexanone 2368.5
    propylene glycol 303.0
    isopropyl acetate 1014.66
    DMAc 1016.98
    2-ethoxyethanol 967.79
    isopentanol 1115.45
    n-heptane 181.21
    ethyl formate 577.71
    1,2-dichloroethane 1678.45
    n-hexanol 973.62
    2-methoxyethanol 1410.76
    isobutyl acetate 727.66
    tetrachloromethane 323.15
    n-pentyl acetate 838.48
    transcutol 3376.63
    n-heptanol 386.96
    ethylbenzene 327.34
    MIBK 1028.89
    2-propoxyethanol 1292.06
    tert-butanol 1861.11
    MTBE 1666.38
    2-butoxyethanol 705.75
    propionic acid 681.79
    o-xylene 317.2
    formic acid 120.9
    diethyl ether 1801.41
    m-xylene 384.2
    p-xylene 399.01
    chlorobenzene 665.98
    dimethyl carbonate 206.42
    n-octane 69.12
    formamide 242.2
    cyclopentanone 2336.39
    2-pentanone 1698.03
    anisole 630.99
    cyclopentyl methyl ether 1741.94
    gamma-butyrolactone 1877.44
    1-methoxy-2-propanol 1379.75
    pyridine 1288.21
    3-pentanone 927.83
    furfural 1228.34
    n-dodecane 36.32
    diethylene glycol 621.86
    diisopropyl ether 549.03
    tert-amyl alcohol 1291.83
    acetylacetone 1330.99
    n-hexadecane 43.89
    acetophenone 564.89
    methyl propionate 869.42
    isopentyl acetate 1208.19
    trichloroethylene 2093.91
    n-nonanol 352.06
    cyclohexanol 1199.82
    benzyl alcohol 481.39
    2-ethylhexanol 628.09
    isooctanol 353.56
    dipropyl ether 980.67
    1,2-dichlorobenzene 636.87
    ethyl lactate 351.08
    propylene carbonate 909.12
    n-methylformamide 754.65
    2-pentanol 956.31
    n-pentane 278.3
    1-propoxy-2-propanol 1157.66
    1-methoxy-2-propyl acetate 1062.24
    2-(2-methoxypropoxy) propanol 638.44
    mesitylene 285.88
    ε-caprolactone 1546.79
    p-cymene 204.92
    epichlorohydrin 2014.23
    1,1,1-trichloroethane 1379.6
    2-aminoethanol 429.1
    morpholine-4-carbaldehyde 1250.99
    sulfolane 2404.7
    2,2,4-trimethylpentane 103.1
    2-methyltetrahydrofuran 2489.81
    n-hexyl acetate 962.98
    isooctane 92.59
    2-(2-butoxyethoxy)ethanol 950.83
    sec-butyl acetate 809.94
    tert-butyl acetate 1185.64
    decalin 192.23
    glycerin 312.94
    diglyme 1567.6
    acrylic acid 412.02
    isopropyl myristate 341.98
    n-butyric acid 1316.8
    acetyl acetate 565.64
    di(2-ethylhexyl) phthalate 261.7
    ethyl propionate 896.55
    nitromethane 1058.42
    1,2-diethoxyethane 1328.94
    benzonitrile 644.2
    trioctyl phosphate 208.78
    1-bromopropane 1374.27
    gamma-valerolactone 2192.77
    n-decanol 243.46
    triethyl phosphate 294.47
    4-methyl-2-pentanol 533.43
    propionitrile 875.23
    vinylene carbonate 643.87
    1,1,2-trichlorotrifluoroethane 1119.64
    DMS 513.66
    cumene 233.74
    2-octanol 321.42
    2-hexanone 1325.66
    octyl acetate 402.46
    limonene 390.23
    1,2-dimethoxyethane 1710.26
    ethyl orthosilicate 305.31
    tributyl phosphate 297.38
    diacetone alcohol 1151.01
    N,N-dimethylaniline 404.98
    acrylonitrile 816.19
    aniline 605.84
    1,3-propanediol 655.22
    bromobenzene 763.87
    dibromomethane 1463.12
    1,1,2,2-tetrachloroethane 1965.58
    2-methyl-cyclohexyl acetate 608.83
    tetrabutyl urea 362.86
    diisobutyl methanol 363.75
    2-phenylethanol 531.68
    styrene 430.86
    dioctyl adipate 482.43
    dimethyl sulfate 391.76
    ethyl butyrate 829.1
    methyl lactate 351.45
    butyl lactate 539.68
    diethyl carbonate 437.56
    propanediol butyl ether 659.89
    triethyl orthoformate 529.08
    p-tert-butyltoluene 208.52
    methyl 4-tert-butylbenzoate 487.14
    morpholine 2327.56
    tert-butylamine 1239.29
    n-dodecanol 174.23
    dimethoxymethane 1066.51
    ethylene carbonate 606.58
    cyrene 473.78
    2-ethoxyethyl acetate 860.27
    2-ethylhexyl acetate 921.2
    1,2,4-trichlorobenzene 713.62
    4-methylpyridine 1242.79
    dibutyl ether 841.74
    2,6-dimethyl-4-heptanol 363.75
    DEF 1423.31
    dimethyl isosorbide 1030.3
    tetrachloroethylene 1190.92
    eugenol 476.48
    triacetin 697.96
    span 80 630.96
    1,4-butanediol 283.06
    1,1-dichloroethane 1707.32
    2-methyl-1-pentanol 777.33
    methyl formate 380.87
    2-methyl-1-butanol 897.61
    n-decane 81.7
    butyronitrile 1172.64
    3,7-dimethyl-1-octanol 459.56
    1-chlorooctane 377.62
    1-chlorotetradecane 113.84
    n-nonane 90.71
    undecane 51.74
    tert-butylcyclohexane 178.08
    cyclooctane 140.77
    cyclopentanol 1305.81
    tetrahydropyran 2585.41
    tert-amyl methyl ether 1070.83
    2,5,8-trioxanonane 1018.87
    1-hexene 1475.85
    2-isopropoxyethanol 822.98
    2,2,2-trifluoroethanol 151.57
    methyl butyrate 1234.2

    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