Sodium arachidate

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  • Identifiers

    CAS number
    13257-34-6

    Molecular formula
    C20H39NaO2

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

    Safety labels

  • Odor profile

    Fragrance
    Waxy 78.65%
    Fatty 66.69%
    Oily 39.73%
    Odorless 34.41%
    Creamy 22.91%
    Dairy 19.92%
    Savory 19.89%
    Meaty 18.82%
    Fishy 18.72%
    Milky 18.04%

     

    Flavor
    Waxy 46.37%
    Fatty 42.9%
    Mild 35.87%
    Bland 33.21%
    Fat 30.57%
    Faint 30.32%
    Odorless 27.32%
    Oily 25.83%
    Slightly waxy 25.51%
    Coconut 23.72%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    5.29 (weak acid)

    Molecular weight
    334.5 g/mol

    Flash point

    • 187.8 ˚C est.

  • Synonyms

    • sodium arachidate
    • 13257-34-6
    • UNII-W5OCW7511B
    • Eicosanoic acid, sodium salt (1:1)
    • W5OCW7511B
    • sodium arachate
    • sodium eicosanoate
    • EINECS 236-248-3
    • DTXSID00157644
    • RefChem:183782
    • DTXCID8080135
    • SODIUM ARACHIDATE [INCI]
    • 236-248-3
    • Sodium icosanoate
    • sodium;icosanoate
    • natriumarachidat
    • Arachidic Acid (sodium salt)
    • SCHEMBL5689538
    • MRQYKJNZWPCFNB-UHFFFAOYSA-M
    • NS00085899
    • Q27292346
    • 13257-34-6

  • Applications

    Sodium arachidate (CAS 13257-34-6) is the sodium salt of arachidic acid and behaves as a long-chain surfactant and emulsifier. In real-world use, it may function as a surfactant/emulsifier in household and industrial cleaners; as a thickener and rheology modifier in cosmetics and personal care formulations; as an intermediate or building block in the synthesis of specialty esters and soaps; and as a co-surfactant or stabilizer in coatings, inks, and polymer emulsion systems to improve dispersion and surface properties.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 9.08
    methanol 10.32
    isopropanol 14.93
    water 0.01
    ethyl acetate 77.33
    n-propanol 14.55
    acetone 41.53
    n-butanol 18.23
    acetonitrile 15.4
    DMF 108.8
    toluene 33.45
    isobutanol 16.63
    1,4-dioxane 90.91
    methyl acetate 46.31
    THF 351.0
    2-butanone 68.37
    n-pentanol 19.96
    sec-butanol 19.4
    n-hexane 11.86
    ethylene glycol 1.16
    NMP 361.99
    cyclohexane 48.61
    DMSO 155.58
    n-butyl acetate 136.66
    n-octanol 36.14
    chloroform 237.0
    n-propyl acetate 128.97
    acetic acid 22.42
    dichloromethane 242.81
    cyclohexanone 285.74
    propylene glycol 4.51
    isopropyl acetate 98.28
    DMAc 209.37
    2-ethoxyethanol 48.09
    isopentanol 30.62
    n-heptane 15.44
    ethyl formate 34.09
    1,2-dichloroethane 182.02
    n-hexanol 25.69
    2-methoxyethanol 45.14
    isobutyl acetate 96.16
    tetrachloromethane 62.03
    n-pentyl acetate 210.55
    transcutol 389.87
    n-heptanol 29.87
    ethylbenzene 36.39
    MIBK 104.37
    2-propoxyethanol 68.28
    tert-butanol 41.07
    MTBE 71.44
    2-butoxyethanol 86.72
    propionic acid 26.65
    o-xylene 39.92
    formic acid 4.2
    diethyl ether 42.13
    m-xylene 35.94
    p-xylene 53.05
    chlorobenzene 77.77
    dimethyl carbonate 22.3
    n-octane 8.84
    formamide 10.13
    cyclopentanone 315.97
    2-pentanone 83.23
    anisole 85.49
    cyclopentyl methyl ether 170.92
    gamma-butyrolactone 272.57
    1-methoxy-2-propanol 63.14
    pyridine 109.51
    3-pentanone 70.22
    furfural 202.2
    n-dodecane 5.22
    diethylene glycol 23.22
    diisopropyl ether 36.84
    tert-amyl alcohol 45.08
    acetylacetone 137.09
    n-hexadecane 6.48
    acetophenone 125.1
    methyl propionate 57.14
    isopentyl acetate 154.32
    trichloroethylene 312.11
    n-nonanol 39.52
    cyclohexanol 58.3
    benzyl alcohol 42.82
    2-ethylhexanol 39.72
    isooctanol 38.67
    dipropyl ether 94.88
    1,2-dichlorobenzene 127.59
    ethyl lactate 49.74
    propylene carbonate 166.5
    n-methylformamide 27.09
    2-pentanol 20.8
    n-pentane 6.17
    1-propoxy-2-propanol 92.84
    1-methoxy-2-propyl acetate 146.15
    2-(2-methoxypropoxy) propanol 113.13
    mesitylene 36.72
    ε-caprolactone 258.33
    p-cymene 42.65
    epichlorohydrin 274.6
    1,1,1-trichloroethane 214.72
    2-aminoethanol 5.43
    morpholine-4-carbaldehyde 214.31
    sulfolane 591.77
    2,2,4-trimethylpentane 10.65
    2-methyltetrahydrofuran 222.9
    n-hexyl acetate 189.28
    isooctane 7.56
    2-(2-butoxyethoxy)ethanol 139.57
    sec-butyl acetate 115.19
    tert-butyl acetate 173.94
    decalin 26.23
    glycerin 9.68
    diglyme 321.03
    acrylic acid 18.71
    isopropyl myristate 75.71
    n-butyric acid 68.72
    acetyl acetate 64.81
    di(2-ethylhexyl) phthalate 54.67
    ethyl propionate 110.82
    nitromethane 64.01
    1,2-diethoxyethane 175.18
    benzonitrile 62.86
    trioctyl phosphate 41.58
    1-bromopropane 96.19
    gamma-valerolactone 369.12
    n-decanol 25.92
    triethyl phosphate 97.55
    4-methyl-2-pentanol 24.25
    propionitrile 23.01
    vinylene carbonate 108.7
    1,1,2-trichlorotrifluoroethane 174.33
    DMS 98.9
    cumene 34.4
    2-octanol 33.25
    2-hexanone 107.8
    octyl acetate 83.63
    limonene 78.07
    1,2-dimethoxyethane 170.49
    ethyl orthosilicate 95.45
    tributyl phosphate 59.0
    diacetone alcohol 137.92
    N,N-dimethylaniline 73.51
    acrylonitrile 24.69
    aniline 35.22
    1,3-propanediol 12.53
    bromobenzene 104.66
    dibromomethane 160.31
    1,1,2,2-tetrachloroethane 346.03
    2-methyl-cyclohexyl acetate 161.22
    tetrabutyl urea 100.06
    diisobutyl methanol 42.6
    2-phenylethanol 46.9
    styrene 40.97
    dioctyl adipate 129.31
    dimethyl sulfate 77.0
    ethyl butyrate 155.23
    methyl lactate 32.82
    butyl lactate 118.77
    diethyl carbonate 86.89
    propanediol butyl ether 70.63
    triethyl orthoformate 139.07
    p-tert-butyltoluene 43.12
    methyl 4-tert-butylbenzoate 166.96
    morpholine 130.03
    tert-butylamine 30.25
    n-dodecanol 18.6
    dimethoxymethane 63.67
    ethylene carbonate 98.93
    cyrene 123.89
    2-ethoxyethyl acetate 194.78
    2-ethylhexyl acetate 137.97
    1,2,4-trichlorobenzene 153.69
    4-methylpyridine 110.37
    dibutyl ether 119.99
    2,6-dimethyl-4-heptanol 42.6
    DEF 125.04
    dimethyl isosorbide 314.07
    tetrachloroethylene 193.68
    eugenol 118.6
    triacetin 220.0
    span 80 108.39
    1,4-butanediol 6.16
    1,1-dichloroethane 126.04
    2-methyl-1-pentanol 30.89
    methyl formate 19.43
    2-methyl-1-butanol 25.2
    n-decane 11.99
    butyronitrile 32.65
    3,7-dimethyl-1-octanol 49.18
    1-chlorooctane 59.79
    1-chlorotetradecane 19.03
    n-nonane 11.51
    undecane 7.37
    tert-butylcyclohexane 20.19
    cyclooctane 14.82
    cyclopentanol 61.64
    tetrahydropyran 144.52
    tert-amyl methyl ether 79.31
    2,5,8-trioxanonane 203.18
    1-hexene 27.27
    2-isopropoxyethanol 52.39
    2,2,2-trifluoroethanol 14.36
    methyl butyrate 160.12

    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