Sodium lauroyl hydroxypropyl sulfonate

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  • Identifiers

    CAS number
    3694-90-4

    Molecular formula
    C15H29NaO6S

    SMILES
    CCCCCCCCCCCC(=O)OCC(CS(=O)(=O)[O-])O.[Na+]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 55.68%
    Fatty 38.33%
    Savory 26.6%
    Milky 22.42%
    Waxy 22.35%
    Oily 22.24%
    Meaty 20.39%
    Lactonic 18.67%
    Buttery 18.33%
    Dairy 18.09%

     

    Flavor
    Bland 34.2%
    Odorless 33.57%
    Bitter 31.25%
    Mild 27.48%
    Waxy 22.01%
    Oily 21.63%
    Bay oil 20.14%
    Slightly waxy 19.87%
    Sweet-like 19.67%
    Cultured dairy 19.5%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    5.13 (weak acid)

    Molecular weight
    360.4 g/mol

    Flash point

    • 197.84 ˚C est.

  • Synonyms

    • Sodium lauroyl hydroxypropyl sulfonate
    • MGS-12
    • UNII-IQ398K5X8M
    • IQ398K5X8M
    • 3694-90-4
    • Sodium lauroyl hydroxypropyl sulfonate [INCI]
    • Dodecanoic acid, 2-hydroxy-3-sulfopropyl ester, monosodium salt
    • Lauric acid, 3-ester with 2,3-dihydroxy-1-propanesulfonic acid monosodium salt
    • Lauric acid, 3-ester with 2,3-dihydroxy-1-propanesulfonic acid, sodium salt
    • RefChem:203081
    • (+-)-SODIUM LAUROYL HYDROXYPROPYL SULFONATE
    • SODIUM LAUROYL HYDROXYPROPYL SULFONATE, (+-)-
    • (+/-)-Sodium lauroyl hydroxypropyl sulfonate
    • Sodium lauroyl hydroxypropyl sulfonate, (+/-)-
    • Dodecanoic acid, 2-hydroxy-3-sulfopropyl ester, sodium salt (1:1)
    • SCHEMBL29589343
    • OTJGELLVUIDZDO-UHFFFAOYSA-M
    • DTXSID201383245
    • AKOS024435162
    • Q27280842
    • Sodium 3-(dodecanoyloxy)-2-hydroxypropane-1-sulfonate
    • 3694-90-4

  • Applications

    Sodium lauroyl hydroxypropyl sulfonate, CAS 3694-90-4, is a mild anionic surfactant commonly used as an emulsifier and wetting agent in formulation work. In cosmetics and personal care, it serves as a cleansing surfactant in shampoos and facial cleansers. In household and industrial cleaners, it provides foaming and detergent performance while aiding formulation stability. It is also employed in coatings and inks to improve pigment dispersion and surface wetting, and in polymer processing as a compatibilizer or dispersant. In agriculture, it may be evaluated as an adjuvant to improve spray deposition on leaves.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 13.5
    methanol 22.44
    isopropanol 7.99
    water 0.05
    ethyl acetate 10.12
    n-propanol 9.4
    acetone 46.89
    n-butanol 7.65
    acetonitrile 10.38
    DMF 174.19
    toluene 5.1
    isobutanol 6.34
    1,4-dioxane 23.4
    methyl acetate 13.73
    THF 94.04
    2-butanone 26.65
    n-pentanol 8.74
    sec-butanol 7.78
    n-hexane 0.24
    ethylene glycol 3.25
    NMP 212.32
    cyclohexane 0.98
    DMSO 336.13
    n-butyl acetate 11.69
    n-octanol 6.66
    chloroform 33.4
    n-propyl acetate 13.89
    acetic acid 34.59
    dichloromethane 39.78
    cyclohexanone 75.66
    propylene glycol 8.11
    isopropyl acetate 10.81
    DMAc 224.91
    2-ethoxyethanol 35.07
    isopentanol 8.35
    n-heptane 0.29
    ethyl formate 13.97
    1,2-dichloroethane 31.63
    n-hexanol 6.34
    2-methoxyethanol 51.91
    isobutyl acetate 8.59
    tetrachloromethane 3.25
    n-pentyl acetate 15.03
    transcutol 116.78
    n-heptanol 5.72
    ethylbenzene 4.62
    MIBK 17.64
    2-propoxyethanol 28.38
    tert-butanol 14.64
    MTBE 7.07
    2-butoxyethanol 21.35
    propionic acid 15.38
    o-xylene 6.91
    formic acid 17.94
    diethyl ether 4.49
    m-xylene 5.11
    p-xylene 6.21
    chlorobenzene 10.63
    dimethyl carbonate 9.65
    n-octane 0.24
    formamide 37.39
    cyclopentanone 100.31
    2-pentanone 20.33
    anisole 17.64
    cyclopentyl methyl ether 20.86
    gamma-butyrolactone 88.11
    1-methoxy-2-propanol 38.29
    pyridine 31.48
    3-pentanone 15.55
    furfural 90.66
    n-dodecane 0.29
    diethylene glycol 23.85
    diisopropyl ether 2.03
    tert-amyl alcohol 13.29
    acetylacetone 53.0
    n-hexadecane 0.34
    acetophenone 34.88
    methyl propionate 13.5
    isopentyl acetate 13.59
    trichloroethylene 66.41
    n-nonanol 6.88
    cyclohexanol 12.4
    benzyl alcohol 20.16
    2-ethylhexanol 5.16
    isooctanol 5.53
    dipropyl ether 4.31
    1,2-dichlorobenzene 16.26
    ethyl lactate 15.78
    propylene carbonate 40.67
    n-methylformamide 38.38
    2-pentanol 4.43
    n-pentane 0.21
    1-propoxy-2-propanol 20.37
    1-methoxy-2-propyl acetate 24.07
    2-(2-methoxypropoxy) propanol 40.8
    mesitylene 3.94
    ε-caprolactone 54.1
    p-cymene 4.13
    epichlorohydrin 76.02
    1,1,1-trichloroethane 20.92
    2-aminoethanol 10.12
    morpholine-4-carbaldehyde 122.67
    sulfolane 232.12
    2,2,4-trimethylpentane 0.4
    2-methyltetrahydrofuran 32.43
    n-hexyl acetate 18.92
    isooctane 0.23
    2-(2-butoxyethoxy)ethanol 42.61
    sec-butyl acetate 9.4
    tert-butyl acetate 20.05
    decalin 0.92
    glycerin 18.68
    diglyme 84.77
    acrylic acid 17.04
    isopropyl myristate 7.49
    n-butyric acid 21.51
    acetyl acetate 13.63
    di(2-ethylhexyl) phthalate 13.51
    ethyl propionate 11.32
    nitromethane 77.38
    1,2-diethoxyethane 17.96
    benzonitrile 19.71
    trioctyl phosphate 7.77
    1-bromopropane 8.19
    gamma-valerolactone 145.66
    n-decanol 4.68
    triethyl phosphate 10.88
    4-methyl-2-pentanol 4.15
    propionitrile 7.54
    vinylene carbonate 33.86
    1,1,2-trichlorotrifluoroethane 84.55
    DMS 18.34
    cumene 4.11
    2-octanol 4.17
    2-hexanone 20.23
    octyl acetate 10.07
    limonene 6.35
    1,2-dimethoxyethane 61.18
    ethyl orthosilicate 9.86
    tributyl phosphate 10.19
    diacetone alcohol 42.5
    N,N-dimethylaniline 17.16
    acrylonitrile 13.67
    aniline 11.28
    1,3-propanediol 14.9
    bromobenzene 9.84
    dibromomethane 21.43
    1,1,2,2-tetrachloroethane 60.89
    2-methyl-cyclohexyl acetate 18.8
    tetrabutyl urea 20.97
    diisobutyl methanol 3.72
    2-phenylethanol 16.33
    styrene 5.78
    dioctyl adipate 19.83
    dimethyl sulfate 40.94
    ethyl butyrate 11.7
    methyl lactate 20.68
    butyl lactate 20.73
    diethyl carbonate 8.91
    propanediol butyl ether 28.69
    triethyl orthoformate 10.81
    p-tert-butyltoluene 3.99
    methyl 4-tert-butylbenzoate 35.6
    morpholine 39.11
    tert-butylamine 5.68
    n-dodecanol 3.29
    dimethoxymethane 37.47
    ethylene carbonate 24.03
    cyrene 61.39
    2-ethoxyethyl acetate 24.55
    2-ethylhexyl acetate 10.28
    1,2,4-trichlorobenzene 23.33
    4-methylpyridine 28.74
    dibutyl ether 6.46
    2,6-dimethyl-4-heptanol 3.72
    DEF 40.44
    dimethyl isosorbide 79.43
    tetrachloroethylene 30.3
    eugenol 36.47
    triacetin 36.73
    span 80 31.11
    1,4-butanediol 7.5
    1,1-dichloroethane 16.09
    2-methyl-1-pentanol 9.59
    methyl formate 24.85
    2-methyl-1-butanol 7.77
    n-decane 0.52
    butyronitrile 8.91
    3,7-dimethyl-1-octanol 7.78
    1-chlorooctane 3.61
    1-chlorotetradecane 1.43
    n-nonane 0.41
    undecane 0.37
    tert-butylcyclohexane 0.64
    cyclooctane 0.33
    cyclopentanol 17.55
    tetrahydropyran 19.31
    tert-amyl methyl ether 8.52
    2,5,8-trioxanonane 70.86
    1-hexene 1.56
    2-isopropoxyethanol 22.56
    2,2,2-trifluoroethanol 15.51
    methyl butyrate 20.78

    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