Disodium 2-sulfolaurate

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  • Identifiers

    CAS number
    38841-48-4

    Molecular formula
    C12H22Na2O5S

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

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 57.47%
    Fatty 28.79%
    Savory 25.07%
    Meaty 20.61%
    Citrus 19.2%
    Oily 18.4%
    Fresh 17.96%
    Milky 17.73%
    Waxy 17.6%
    Cooling 17.47%

     

    Flavor
    Bitter 41.9%
    Odorless 30.03%
    Bland 29.72%
    Mild 22.54%
    Cedarleaf 19.4%
    Nitrile 19.25%
    Slightly waxy 19.04%
    Lovage 19.04%
    Oriental 18.94%
    Heather 18.77%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    1.74 (strong acid)

    Molecular weight
    324.35 g/mol

    Flash point

    • 160.35 ˚C est.

  • Synonyms

    • Disodium 2-sulfolaurate
    • 38841-48-4
    • Dodecanoic acid, 2-sulfo-, sodium salt (1:2)
    • Dodecanoic acid, 2-sulfo-, disodium salt
    • UNII-329M3829G2
    • 329M3829G2
    • DTXSID20889733
    • .ALPHA.-SULFOLAURIC ACID DISODIUM SALT
    • RefChem:134972
    • DTXCID301031221
    • (+-)-DISODIUM 2-SULFOLAURATE
    • DISODIUM 2-SULFOLAURATE [INCI]
    • DISODIUM 2-SULFOLAURATE, (+-)-
    • ALPHA-SULFOLAURIC ACID DISODIUM SALT
    • 853-620-6
    • disodium;2-sulfonatododecanoate
    • DISODIUM 2-SULFONATODODECANOATE
    • SCHEMBL25301056
    • KKGXXVNMUUFEDZ-UHFFFAOYSA-L
    • DISODIUM .ALPHA.-SULFOLAURATE
    • (+/-)-DISODIUM 2-SULFOLAURATE
    • DISODIUM 2-SULFOLAURATE, (+/-)-
    • Q27256170
    • 38841-48-4

  • Applications

    Disodium 2-sulfolaurate (CAS 38841-48-4) is an anionic surfactant widely used in cleaning and formulation applications; in household detergents and industrial cleaners, it provides cleansing, foaming, and wetting properties. It is also employed in cosmetics and personal care products as a mild surfactant and emulsifier. In industrial manufacturing, it serves as a processing aid, stabilizer, and dispersant in formulations for coatings, inks, and polymer systems. It can act as an intermediate in the synthesis of other sulfonated surfactants and related specialty chemicals. Collectively, these roles reflect its function as a versatile surfactant and formulation aid across multiple industries.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 61.27
    methanol 63.51
    isopropanol 45.14
    water 0.13
    ethyl acetate 40.33
    n-propanol 46.8
    acetone 126.48
    n-butanol 39.83
    acetonitrile 32.29
    DMF 368.88
    toluene 41.32
    isobutanol 31.65
    1,4-dioxane 64.24
    methyl acetate 40.92
    THF 301.77
    2-butanone 79.84
    n-pentanol 31.88
    sec-butanol 37.65
    n-hexane 2.92
    ethylene glycol 19.52
    NMP 589.26
    cyclohexane 8.51
    DMSO 617.58
    n-butyl acetate 42.64
    n-octanol 15.76
    chloroform 127.52
    n-propyl acetate 35.91
    acetic acid 67.85
    dichloromethane 134.8
    cyclohexanone 216.59
    propylene glycol 45.07
    isopropyl acetate 41.51
    DMAc 325.5
    2-ethoxyethanol 68.86
    isopentanol 36.52
    n-heptane 1.98
    ethyl formate 33.58
    1,2-dichloroethane 135.96
    n-hexanol 32.19
    2-methoxyethanol 135.71
    isobutyl acetate 25.65
    tetrachloromethane 15.32
    n-pentyl acetate 38.9
    transcutol 181.23
    n-heptanol 17.48
    ethylbenzene 22.29
    MIBK 63.12
    2-propoxyethanol 86.25
    tert-butanol 62.81
    MTBE 30.06
    2-butoxyethanol 51.2
    propionic acid 47.37
    o-xylene 36.71
    formic acid 35.69
    diethyl ether 24.46
    m-xylene 37.58
    p-xylene 27.02
    chlorobenzene 58.46
    dimethyl carbonate 33.42
    n-octane 1.16
    formamide 81.58
    cyclopentanone 347.3
    2-pentanone 81.1
    anisole 46.3
    cyclopentyl methyl ether 112.52
    gamma-butyrolactone 275.5
    1-methoxy-2-propanol 128.12
    pyridine 111.97
    3-pentanone 56.21
    furfural 217.53
    n-dodecane 1.04
    diethylene glycol 74.37
    diisopropyl ether 12.14
    tert-amyl alcohol 52.48
    acetylacetone 142.48
    n-hexadecane 1.28
    acetophenone 76.97
    methyl propionate 54.36
    isopentyl acetate 47.24
    trichloroethylene 252.99
    n-nonanol 15.73
    cyclohexanol 60.16
    benzyl alcohol 54.42
    2-ethylhexanol 22.14
    isooctanol 16.16
    dipropyl ether 17.3
    1,2-dichlorobenzene 70.83
    ethyl lactate 37.93
    propylene carbonate 126.85
    n-methylformamide 101.25
    2-pentanol 27.72
    n-pentane 2.96
    1-propoxy-2-propanol 64.74
    1-methoxy-2-propyl acetate 76.51
    2-(2-methoxypropoxy) propanol 73.99
    mesitylene 26.56
    ε-caprolactone 151.04
    p-cymene 18.0
    epichlorohydrin 254.11
    1,1,1-trichloroethane 89.18
    2-aminoethanol 44.99
    morpholine-4-carbaldehyde 274.84
    sulfolane 654.02
    2,2,4-trimethylpentane 2.62
    2-methyltetrahydrofuran 139.66
    n-hexyl acetate 48.38
    isooctane 2.26
    2-(2-butoxyethoxy)ethanol 84.59
    sec-butyl acetate 28.34
    tert-butyl acetate 67.75
    decalin 5.74
    glycerin 71.28
    diglyme 130.22
    acrylic acid 50.28
    isopropyl myristate 19.78
    n-butyric acid 67.6
    acetyl acetate 37.45
    di(2-ethylhexyl) phthalate 31.21
    ethyl propionate 32.79
    nitromethane 133.03
    1,2-diethoxyethane 39.39
    benzonitrile 62.14
    trioctyl phosphate 20.43
    1-bromopropane 46.44
    gamma-valerolactone 332.61
    n-decanol 11.78
    triethyl phosphate 25.8
    4-methyl-2-pentanol 19.94
    propionitrile 31.6
    vinylene carbonate 91.44
    1,1,2-trichlorotrifluoroethane 187.5
    DMS 49.47
    cumene 17.52
    2-octanol 12.51
    2-hexanone 54.33
    octyl acetate 25.2
    limonene 28.66
    1,2-dimethoxyethane 97.01
    ethyl orthosilicate 23.04
    tributyl phosphate 24.65
    diacetone alcohol 129.14
    N,N-dimethylaniline 49.25
    acrylonitrile 52.57
    aniline 58.01
    1,3-propanediol 57.93
    bromobenzene 60.93
    dibromomethane 92.27
    1,1,2,2-tetrachloroethane 223.89
    2-methyl-cyclohexyl acetate 52.78
    tetrabutyl urea 45.52
    diisobutyl methanol 16.34
    2-phenylethanol 52.99
    styrene 26.9
    dioctyl adipate 40.37
    dimethyl sulfate 113.11
    ethyl butyrate 32.75
    methyl lactate 63.91
    butyl lactate 49.12
    diethyl carbonate 22.45
    propanediol butyl ether 61.03
    triethyl orthoformate 27.61
    p-tert-butyltoluene 18.12
    methyl 4-tert-butylbenzoate 78.01
    morpholine 119.78
    tert-butylamine 32.03
    n-dodecanol 8.77
    dimethoxymethane 108.77
    ethylene carbonate 70.12
    cyrene 126.8
    2-ethoxyethyl acetate 56.22
    2-ethylhexyl acetate 36.35
    1,2,4-trichlorobenzene 94.5
    4-methylpyridine 110.97
    dibutyl ether 14.74
    2,6-dimethyl-4-heptanol 16.34
    DEF 110.16
    dimethyl isosorbide 170.94
    tetrachloroethylene 114.74
    eugenol 75.43
    triacetin 67.38
    span 80 67.33
    1,4-butanediol 24.29
    1,1-dichloroethane 81.7
    2-methyl-1-pentanol 31.05
    methyl formate 58.29
    2-methyl-1-butanol 33.31
    n-decane 1.73
    butyronitrile 35.13
    3,7-dimethyl-1-octanol 20.18
    1-chlorooctane 10.42
    1-chlorotetradecane 4.58
    n-nonane 1.49
    undecane 1.32
    tert-butylcyclohexane 3.99
    cyclooctane 3.04
    cyclopentanol 93.1
    tetrahydropyran 76.74
    tert-amyl methyl ether 33.1
    2,5,8-trioxanonane 113.32
    1-hexene 11.64
    2-isopropoxyethanol 49.81
    2,2,2-trifluoroethanol 34.03
    methyl butyrate 49.18

    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