dodecanoic acid, 2-sulfoethyl ester, sodium salt

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  • Identifiers

    CAS number
    7381-01-3

    Molecular formula
    C14H27NaO5S

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

    Safety labels

  • Odor profile

    Fragrance
    Odorless 51.88%
    Fatty 40.01%
    Waxy 24.03%
    Oily 23.55%
    Savory 23.4%
    Milky 22.3%
    Dairy 19.53%
    Meaty 19.04%
    Buttery 18.67%
    Lactonic 18.39%

     

    Flavor
    Bland 27.82%
    Waxy 27.69%
    Oily 27.1%
    Fruity 26.49%
    Mild 25.39%
    Odorless 25.0%
    Fatty 23.68%
    Bitter 22.17%
    Bay oil 20.55%
    Slightly waxy 20.32%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    5.49 (weak acid)

    Molecular weight
    330.42 g/mol

    Flash point

    • 180.24 ˚C est.

  • Synonyms

    • Sodium ethyl 2-sulfolaurate
    • Igepon A
    • Sodium lauroylisethionate
    • Sodium 2-sulfoethyl laurate
    • Sodium 2-sulfoethyldodecanoate
    • Sodium lauryl isethionate
    • 2-Sulfoethyl laurate sodium salt
    • CCRIS 528
    • Dodecanoic acid, 2-sulfoethyl ester, sodium salt
    • Lauroyl isethionate, sodium salt
    • 2-Sulfoethyl dodecanoate sodium salt
    • EINECS 230-949-8
    • M590021Z02
    • DTXSID30904926
    • SODIUM LAUROYL ISETHIONATE [MI]
    • Lauric acid, ester with 2-hydroxyethanesulfonic acid sodium salt
    • EC 230-949-8
    • Dodecanoic acid, 2-sulfoethyl ester, sodium salt (1:1)
    • RefChem:590239
    • DTXCID901334037
    • SODIUM LAUROYL ISETHIONATE [INCI]
    • SODIUM ETHYL 2-SULFOLAURATE [INCI]
    • SODIUM LAUROYL ISETHIONATE
    • sodium 2-(dodecanoyloxy)ethanesulfonate
    • 7381-01-3
    • sodium;2-dodecanoyloxyethanesulfonate
    • MFCD00047789
    • Sodium 2-(dodecanoyloxy)ethane-1-sulfonate
    • SCHEMBL4814584
    • BRMSVEGRHOZCAM-UHFFFAOYSA-M
    • UNII-M590021Z02
    • HAA38101
    • Sodium2-(dodecanoyloxy)ethanesulfonate
    • AKOS016007706
    • CS-0455396
    • NS00078060
    • G70856
    • Q27283505
    • 7381-01-3

  • Applications

    dodecanoic acid, 2-sulfoethyl ester, sodium salt (CAS 7381-01-3) is an anionic surfactant used as a wetting agent, emulsifier, and dispersant in aqueous and oil systems; in cosmetics and personal care, it serves as a cleansing agent and foam stabilizer; in household and industrial cleaners, it improves wetting and cleaning performance; in coatings and inks, it acts as a wetting and dispersing agent for pigments and resins; in polymer and plastics processing, it can function as a dispersant and emulsion stabilizer; in agricultural formulations, it may be used as an adjuvant to improve spray deposition and coverage. Note: use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 17.22
    methanol 28.29
    isopropanol 11.7
    water 0.05
    ethyl acetate 40.07
    n-propanol 13.74
    acetone 96.66
    n-butanol 12.89
    acetonitrile 28.39
    DMF 383.51
    toluene 25.32
    isobutanol 11.28
    1,4-dioxane 55.79
    methyl acetate 40.26
    THF 198.64
    2-butanone 66.31
    n-pentanol 14.19
    sec-butanol 12.28
    n-hexane 0.81
    ethylene glycol 4.84
    NMP 708.18
    cyclohexane 2.76
    DMSO 491.35
    n-butyl acetate 42.6
    n-octanol 12.09
    chloroform 142.3
    n-propyl acetate 53.46
    acetic acid 59.67
    dichloromethane 177.69
    cyclohexanone 223.62
    propylene glycol 13.53
    isopropyl acetate 41.79
    DMAc 447.42
    2-ethoxyethanol 60.05
    isopentanol 16.28
    n-heptane 0.83
    ethyl formate 34.06
    1,2-dichloroethane 113.4
    n-hexanol 11.97
    2-methoxyethanol 85.27
    isobutyl acetate 34.53
    tetrachloromethane 10.24
    n-pentyl acetate 47.13
    transcutol 384.84
    n-heptanol 10.29
    ethylbenzene 18.4
    MIBK 59.38
    2-propoxyethanol 54.84
    tert-butanol 25.29
    MTBE 20.91
    2-butoxyethanol 42.1
    propionic acid 36.94
    o-xylene 28.8
    formic acid 27.08
    diethyl ether 13.05
    m-xylene 26.48
    p-xylene 24.25
    chlorobenzene 54.33
    dimethyl carbonate 33.8
    n-octane 0.59
    formamide 71.07
    cyclopentanone 319.44
    2-pentanone 68.67
    anisole 64.54
    cyclopentyl methyl ether 81.09
    gamma-butyrolactone 313.75
    1-methoxy-2-propanol 85.11
    pyridine 98.66
    3-pentanone 52.73
    furfural 327.75
    n-dodecane 0.63
    diethylene glycol 46.32
    diisopropyl ether 7.83
    tert-amyl alcohol 24.27
    acetylacetone 174.58
    n-hexadecane 0.77
    acetophenone 121.79
    methyl propionate 50.85
    isopentyl acetate 48.08
    trichloroethylene 292.1
    n-nonanol 12.49
    cyclohexanol 28.1
    benzyl alcohol 51.47
    2-ethylhexanol 11.93
    isooctanol 10.72
    dipropyl ether 14.31
    1,2-dichlorobenzene 78.93
    ethyl lactate 42.21
    propylene carbonate 147.36
    n-methylformamide 83.83
    2-pentanol 9.66
    n-pentane 0.62
    1-propoxy-2-propanol 48.25
    1-methoxy-2-propyl acetate 83.36
    2-(2-methoxypropoxy) propanol 93.04
    mesitylene 18.17
    ε-caprolactone 178.08
    p-cymene 13.54
    epichlorohydrin 250.8
    1,1,1-trichloroethane 76.68
    2-aminoethanol 14.64
    morpholine-4-carbaldehyde 381.25
    sulfolane 740.53
    2,2,4-trimethylpentane 1.16
    2-methyltetrahydrofuran 91.38
    n-hexyl acetate 59.28
    isooctane 0.78
    2-(2-butoxyethoxy)ethanol 103.56
    sec-butyl acetate 37.72
    tert-butyl acetate 77.02
    decalin 3.16
    glycerin 35.5
    diglyme 208.21
    acrylic acid 43.6
    isopropyl myristate 21.72
    n-butyric acid 54.36
    acetyl acetate 51.45
    di(2-ethylhexyl) phthalate 32.85
    ethyl propionate 45.17
    nitromethane 195.06
    1,2-diethoxyethane 57.28
    benzonitrile 68.08
    trioctyl phosphate 18.19
    1-bromopropane 29.07
    gamma-valerolactone 453.19
    n-decanol 8.55
    triethyl phosphate 36.59
    4-methyl-2-pentanol 9.31
    propionitrile 21.15
    vinylene carbonate 130.96
    1,1,2-trichlorotrifluoroethane 218.93
    DMS 68.24
    cumene 14.56
    2-octanol 7.95
    2-hexanone 59.48
    octyl acetate 27.32
    limonene 20.8
    1,2-dimethoxyethane 122.06
    ethyl orthosilicate 31.42
    tributyl phosphate 28.02
    diacetone alcohol 115.93
    N,N-dimethylaniline 56.09
    acrylonitrile 42.08
    aniline 39.5
    1,3-propanediol 21.58
    bromobenzene 60.77
    dibromomethane 86.06
    1,1,2,2-tetrachloroethane 230.28
    2-methyl-cyclohexyl acetate 61.98
    tetrabutyl urea 49.87
    diisobutyl methanol 9.53
    2-phenylethanol 38.97
    styrene 24.42
    dioctyl adipate 54.95
    dimethyl sulfate 147.97
    ethyl butyrate 43.62
    methyl lactate 56.34
    butyl lactate 54.29
    diethyl carbonate 31.25
    propanediol butyl ether 62.71
    triethyl orthoformate 37.07
    p-tert-butyltoluene 12.97
    methyl 4-tert-butylbenzoate 101.28
    morpholine 92.18
    tert-butylamine 11.54
    n-dodecanol 6.16
    dimethoxymethane 97.68
    ethylene carbonate 87.39
    cyrene 139.87
    2-ethoxyethyl acetate 82.25
    2-ethylhexyl acetate 37.65
    1,2,4-trichlorobenzene 110.78
    4-methylpyridine 110.81
    dibutyl ether 17.64
    2,6-dimethyl-4-heptanol 9.53
    DEF 127.04
    dimethyl isosorbide 214.08
    tetrachloroethylene 110.24
    eugenol 86.03
    triacetin 126.12
    span 80 75.4
    1,4-butanediol 10.94
    1,1-dichloroethane 66.01
    2-methyl-1-pentanol 17.18
    methyl formate 57.72
    2-methyl-1-butanol 14.93
    n-decane 1.13
    butyronitrile 23.98
    3,7-dimethyl-1-octanol 15.79
    1-chlorooctane 8.8
    1-chlorotetradecane 3.38
    n-nonane 0.94
    undecane 0.81
    tert-butylcyclohexane 2.16
    cyclooctane 1.13
    cyclopentanol 38.84
    tetrahydropyran 48.35
    tert-amyl methyl ether 25.1
    2,5,8-trioxanonane 170.54
    1-hexene 4.93
    2-isopropoxyethanol 44.07
    2,2,2-trifluoroethanol 32.47
    methyl butyrate 72.77

    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