Methyl alpha-sulfolaurate sodium salt

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  • Identifiers

    CAS number
    4016-21-1

    Molecular formula
    C13H26NaO5S

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

    Safety labels

    Corrosive
    Corrosive

  • Odor profile

    Fragrance
    Odorless 45.99%
    Fatty 34.83%
    Green 22.72%
    Savory 22.2%
    Waxy 21.85%
    Fresh 21.27%
    Oily 20.97%
    Milky 20.57%
    Citrus 19.37%
    Meaty 18.77%

     

    Flavor
    Bitter 35.57%
    Bland 29.11%
    Odorless 24.66%
    Mild 23.49%
    Waxy 19.89%
    Cedarleaf 19.59%
    Slightly waxy 19.5%
    Heather 19.47%
    Bay oil 19.23%
    Broom 19.18%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    5.78 (weak acid)

    Molecular weight
    317.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    419°C

    Flash point

    • 157.68 ˚C est.

  • Synonyms

    • RefChem:1089540
    • METHYL ALPHA-SULFOLAURATE SODIUM SALT
    • 4016-21-1
    • Sodium Methyl-2-Sulfolaurate
    • SCHEMBL29538973
    • 4016-21-1

  • Applications

    Methyl alpha-sulfolaurate sodium salt (CAS 4016-21-1) is typically used as an anionic surfactant and emulsifier across multiple sectors: in detergents and household cleaners; in cosmetics and personal care products; in coatings and inks as a wetting and dispersion aid; and as a processing aid or emulsifier in polymer and plastics manufacturing, with use in industrial cleaning formulations to improve wetting, dispersion, and stability.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 64.7
    methanol 78.39
    isopropanol 45.26
    water 0.11
    ethyl acetate 35.18
    n-propanol 49.24
    acetone 123.91
    n-butanol 42.7
    acetonitrile 33.43
    DMF 358.3
    toluene 39.75
    isobutanol 34.16
    1,4-dioxane 82.26
    methyl acetate 39.93
    THF 340.01
    2-butanone 79.62
    n-pentanol 34.27
    sec-butanol 37.48
    n-hexane 1.64
    ethylene glycol 18.87
    NMP 525.51
    cyclohexane 7.44
    DMSO 563.07
    n-butyl acetate 38.06
    n-octanol 14.11
    chloroform 161.51
    n-propyl acetate 35.23
    acetic acid 86.99
    dichloromethane 153.32
    cyclohexanone 245.85
    propylene glycol 44.37
    isopropyl acetate 34.79
    DMAc 300.68
    2-ethoxyethanol 72.91
    isopentanol 39.11
    n-heptane 1.22
    ethyl formate 40.14
    1,2-dichloroethane 139.02
    n-hexanol 29.28
    2-methoxyethanol 140.09
    isobutyl acetate 25.38
    tetrachloromethane 15.78
    n-pentyl acetate 35.72
    transcutol 148.41
    n-heptanol 16.14
    ethylbenzene 19.45
    MIBK 57.05
    2-propoxyethanol 82.43
    tert-butanol 57.79
    MTBE 25.59
    2-butoxyethanol 48.72
    propionic acid 51.64
    o-xylene 31.43
    formic acid 41.43
    diethyl ether 20.45
    m-xylene 30.51
    p-xylene 24.61
    chlorobenzene 62.9
    dimethyl carbonate 28.83
    n-octane 0.8
    formamide 83.94
    cyclopentanone 377.33
    2-pentanone 76.39
    anisole 43.71
    cyclopentyl methyl ether 100.89
    gamma-butyrolactone 294.41
    1-methoxy-2-propanol 113.37
    pyridine 134.74
    3-pentanone 51.61
    furfural 233.19
    n-dodecane 0.76
    diethylene glycol 70.7
    diisopropyl ether 8.66
    tert-amyl alcohol 47.53
    acetylacetone 127.46
    n-hexadecane 0.92
    acetophenone 73.69
    methyl propionate 47.95
    isopentyl acetate 41.12
    trichloroethylene 268.42
    n-nonanol 14.07
    cyclohexanol 67.32
    benzyl alcohol 58.79
    2-ethylhexanol 19.32
    isooctanol 14.44
    dipropyl ether 13.63
    1,2-dichlorobenzene 69.42
    ethyl lactate 35.79
    propylene carbonate 134.06
    n-methylformamide 108.1
    2-pentanol 25.09
    n-pentane 1.84
    1-propoxy-2-propanol 54.61
    1-methoxy-2-propyl acetate 61.92
    2-(2-methoxypropoxy) propanol 61.05
    mesitylene 19.49
    ε-caprolactone 161.38
    p-cymene 13.77
    epichlorohydrin 275.4
    1,1,1-trichloroethane 85.14
    2-aminoethanol 47.41
    morpholine-4-carbaldehyde 259.78
    sulfolane 592.11
    2,2,4-trimethylpentane 1.78
    2-methyltetrahydrofuran 145.52
    n-hexyl acetate 43.25
    isooctane 1.27
    2-(2-butoxyethoxy)ethanol 70.69
    sec-butyl acetate 25.04
    tert-butyl acetate 54.07
    decalin 4.13
    glycerin 75.13
    diglyme 122.63
    acrylic acid 56.67
    isopropyl myristate 15.64
    n-butyric acid 75.39
    acetyl acetate 35.58
    di(2-ethylhexyl) phthalate 28.74
    ethyl propionate 30.92
    nitromethane 143.41
    1,2-diethoxyethane 32.4
    benzonitrile 67.55
    trioctyl phosphate 18.48
    1-bromopropane 44.53
    gamma-valerolactone 361.91
    n-decanol 10.27
    triethyl phosphate 22.97
    4-methyl-2-pentanol 17.31
    propionitrile 34.59
    vinylene carbonate 101.96
    1,1,2-trichlorotrifluoroethane 203.36
    DMS 39.98
    cumene 13.97
    2-octanol 10.71
    2-hexanone 53.45
    octyl acetate 21.54
    limonene 21.58
    1,2-dimethoxyethane 109.96
    ethyl orthosilicate 20.44
    tributyl phosphate 21.46
    diacetone alcohol 104.76
    N,N-dimethylaniline 42.3
    acrylonitrile 56.54
    aniline 60.19
    1,3-propanediol 61.86
    bromobenzene 61.04
    dibromomethane 101.29
    1,1,2,2-tetrachloroethane 232.89
    2-methyl-cyclohexyl acetate 46.69
    tetrabutyl urea 39.23
    diisobutyl methanol 12.46
    2-phenylethanol 53.67
    styrene 25.06
    dioctyl adipate 34.57
    dimethyl sulfate 89.76
    ethyl butyrate 29.21
    methyl lactate 55.91
    butyl lactate 44.08
    diethyl carbonate 21.22
    propanediol butyl ether 55.87
    triethyl orthoformate 24.84
    p-tert-butyltoluene 13.09
    methyl 4-tert-butylbenzoate 65.79
    morpholine 146.18
    tert-butylamine 26.38
    n-dodecanol 7.42
    dimethoxymethane 100.5
    ethylene carbonate 79.2
    cyrene 116.9
    2-ethoxyethyl acetate 50.72
    2-ethylhexyl acetate 32.44
    1,2,4-trichlorobenzene 88.39
    4-methylpyridine 120.07
    dibutyl ether 11.93
    2,6-dimethyl-4-heptanol 12.46
    DEF 104.15
    dimethyl isosorbide 137.41
    tetrachloroethylene 127.16
    eugenol 67.58
    triacetin 57.29
    span 80 57.62
    1,4-butanediol 26.91
    1,1-dichloroethane 80.14
    2-methyl-1-pentanol 32.65
    methyl formate 66.76
    2-methyl-1-butanol 35.02
    n-decane 1.27
    butyronitrile 41.15
    3,7-dimethyl-1-octanol 17.09
    1-chlorooctane 8.55
    1-chlorotetradecane 3.43
    n-nonane 1.07
    undecane 0.95
    tert-butylcyclohexane 2.66
    cyclooctane 2.08
    cyclopentanol 100.5
    tetrahydropyran 92.52
    tert-amyl methyl ether 26.62
    2,5,8-trioxanonane 93.81
    1-hexene 8.38
    2-isopropoxyethanol 50.17
    2,2,2-trifluoroethanol 38.17
    methyl butyrate 50.36

    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