Sodium octanesulfonate

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  • Identifiers

    CAS number
    5324-84-5

    Molecular formula
    C8H18NaO3S

    SMILES
    CCCCCCCCS(=O)(=O)O.[Na]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 51.63%
    Fatty 31.8%
    Savory 23.99%
    Fresh 22.05%
    Green 20.12%
    Meaty 20.07%
    Citrus 20.05%
    Waxy 18.2%
    Roasted 17.27%
    Cooked 17.21%

     

    Flavor
    Bitter 46.23%
    Green 24.95%
    Bland 22.13%
    Fatty 20.75%
    Cedarleaf 19.7%
    Mild 19.57%
    Gooseberry 19.32%
    Lovage 19.29%
    Heather 19.21%
    Butyric 19.08%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    8.6 (weak base)

    Molecular weight
    217.28 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    370°C

    Flash point

    • 155.81 ˚C est.

  • Synonyms

    • Sodium octanesulfonate
    • RefChem:931921
    • 1-Octanesulfonic acid, sodium salt
    • 5324-84-5
    • SCHEMBL29470688
    • 5324-84-5

  • Applications

    Sodium octanesulfonate (CAS 5324-84-5) is an anionic surfactant with an eight-carbon chain used as a surface-active agent, emulsifier, and dispersant in a range of formulations. Real-world applications include household and industrial cleaning products; cosmetics and personal care formulations; coatings and inks where it functions as a wetting agent and pigment dispersant; polymer and plastics processing as a processing aid (emulsifier and dispersant); and textile processing with roles as a surfactant and leveling agent. Applications are subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 154.87
    methanol 191.88
    isopropanol 98.57
    water 0.2
    ethyl acetate 72.58
    n-propanol 101.78
    acetone 195.98
    n-butanol 82.76
    acetonitrile 44.12
    DMF 483.05
    toluene 38.44
    isobutanol 65.17
    1,4-dioxane 127.36
    methyl acetate 63.09
    THF 412.93
    2-butanone 128.61
    n-pentanol 73.67
    sec-butanol 78.8
    n-hexane 6.86
    ethylene glycol 40.02
    NMP 459.95
    cyclohexane 13.05
    DMSO 651.05
    n-butyl acetate 96.4
    n-octanol 49.84
    chloroform 71.96
    n-propyl acetate 74.07
    acetic acid 112.16
    dichloromethane 62.87
    cyclohexanone 336.48
    propylene glycol 82.82
    isopropyl acetate 74.0
    DMAc 300.85
    2-ethoxyethanol 139.0
    isopentanol 74.57
    n-heptane 4.64
    ethyl formate 52.3
    1,2-dichloroethane 85.42
    n-hexanol 86.77
    2-methoxyethanol 243.29
    isobutyl acetate 50.11
    tetrachloromethane 10.15
    n-pentyl acetate 72.92
    transcutol 498.82
    n-heptanol 43.36
    ethylbenzene 27.02
    MIBK 100.4
    2-propoxyethanol 165.99
    tert-butanol 126.02
    MTBE 70.56
    2-butoxyethanol 94.01
    propionic acid 86.95
    o-xylene 40.31
    formic acid 52.01
    diethyl ether 54.46
    m-xylene 43.02
    p-xylene 33.37
    chlorobenzene 53.06
    dimethyl carbonate 33.36
    n-octane 2.73
    formamide 97.79
    cyclopentanone 422.86
    2-pentanone 139.05
    anisole 71.72
    cyclopentyl methyl ether 165.96
    gamma-butyrolactone 313.43
    1-methoxy-2-propanol 217.17
    pyridine 123.09
    3-pentanone 84.44
    furfural 266.35
    n-dodecane 2.5
    diethylene glycol 131.41
    diisopropyl ether 24.98
    tert-amyl alcohol 111.51
    acetylacetone 204.32
    n-hexadecane 2.95
    acetophenone 104.39
    methyl propionate 71.6
    isopentyl acetate 93.24
    trichloroethylene 160.35
    n-nonanol 44.14
    cyclohexanol 109.33
    benzyl alcohol 75.91
    2-ethylhexanol 50.5
    isooctanol 35.57
    dipropyl ether 39.74
    1,2-dichlorobenzene 58.39
    ethyl lactate 51.68
    propylene carbonate 148.4
    n-methylformamide 139.2
    2-pentanol 60.37
    n-pentane 4.71
    1-propoxy-2-propanol 126.46
    1-methoxy-2-propyl acetate 119.54
    2-(2-methoxypropoxy) propanol 125.57
    mesitylene 31.25
    ε-caprolactone 221.2
    p-cymene 23.8
    epichlorohydrin 228.07
    1,1,1-trichloroethane 51.31
    2-aminoethanol 95.3
    morpholine-4-carbaldehyde 343.89
    sulfolane 578.21
    2,2,4-trimethylpentane 4.09
    2-methyltetrahydrofuran 208.47
    n-hexyl acetate 104.36
    isooctane 3.6
    2-(2-butoxyethoxy)ethanol 170.3
    sec-butyl acetate 55.91
    tert-butyl acetate 114.75
    decalin 8.05
    glycerin 120.56
    diglyme 238.26
    acrylic acid 79.01
    isopropyl myristate 39.98
    n-butyric acid 125.72
    acetyl acetate 55.53
    di(2-ethylhexyl) phthalate 48.74
    ethyl propionate 56.04
    nitromethane 186.36
    1,2-diethoxyethane 95.23
    benzonitrile 80.51
    trioctyl phosphate 36.43
    1-bromopropane 35.4
    gamma-valerolactone 461.6
    n-decanol 32.53
    triethyl phosphate 36.5
    4-methyl-2-pentanol 40.14
    propionitrile 44.23
    vinylene carbonate 112.66
    1,1,2-trichlorotrifluoroethane 185.84
    DMS 71.64
    cumene 22.14
    2-octanol 32.53
    2-hexanone 100.46
    octyl acetate 52.23
    limonene 37.85
    1,2-dimethoxyethane 177.31
    ethyl orthosilicate 33.81
    tributyl phosphate 45.45
    diacetone alcohol 193.49
    N,N-dimethylaniline 60.49
    acrylonitrile 64.82
    aniline 67.95
    1,3-propanediol 117.46
    bromobenzene 46.51
    dibromomethane 47.49
    1,1,2,2-tetrachloroethane 149.46
    2-methyl-cyclohexyl acetate 77.61
    tetrabutyl urea 71.08
    diisobutyl methanol 32.29
    2-phenylethanol 84.83
    styrene 31.1
    dioctyl adipate 71.67
    dimethyl sulfate 97.51
    ethyl butyrate 62.34
    methyl lactate 77.71
    butyl lactate 83.27
    diethyl carbonate 36.73
    propanediol butyl ether 138.01
    triethyl orthoformate 46.52
    p-tert-butyltoluene 24.56
    methyl 4-tert-butylbenzoate 101.49
    morpholine 208.77
    tert-butylamine 63.5
    n-dodecanol 23.77
    dimethoxymethane 138.68
    ethylene carbonate 85.39
    cyrene 131.41
    2-ethoxyethyl acetate 99.35
    2-ethylhexyl acetate 69.69
    1,2,4-trichlorobenzene 78.25
    4-methylpyridine 137.0
    dibutyl ether 39.53
    2,6-dimethyl-4-heptanol 32.29
    DEF 161.62
    dimethyl isosorbide 210.0
    tetrachloroethylene 92.44
    eugenol 99.29
    triacetin 115.02
    span 80 129.05
    1,4-butanediol 50.15
    1,1-dichloroethane 54.28
    2-methyl-1-pentanol 64.55
    methyl formate 77.57
    2-methyl-1-butanol 65.96
    n-decane 4.34
    butyronitrile 57.92
    3,7-dimethyl-1-octanol 52.87
    1-chlorooctane 23.79
    1-chlorotetradecane 8.85
    n-nonane 3.89
    undecane 3.16
    tert-butylcyclohexane 6.59
    cyclooctane 4.8
    cyclopentanol 141.92
    tetrahydropyran 157.8
    tert-amyl methyl ether 64.59
    2,5,8-trioxanonane 194.59
    1-hexene 27.54
    2-isopropoxyethanol 98.73
    2,2,2-trifluoroethanol 40.9
    methyl butyrate 84.86

    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