Stearoyl Ethyltrimonium Methosulfate

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  • Identifiers

    CAS number
    114519-87-8

    Molecular formula
    C24H51NO6S

    SMILES
    CCCCCCCCCCCCCCCCCC(=O)OCC[N+](C)(C)C.COS(=O)(=O)[O-]

    Safety labels

  • Odor profile

    Fragrance
    Waxy 73.62%
    Fatty 63.07%
    Oily 53.66%
    Odorless 31.84%
    Creamy 29.09%
    Sweet 26.06%
    Soapy 21.83%
    Dairy 21.28%
    Milky 20.98%
    Fruity 20.96%

     

    Flavor
    Waxy 42.2%
    Mild 40.89%
    Oily 40.75%
    Bland 35.66%
    Fatty 32.43%
    Faint 27.65%
    Fat 24.43%
    Slightly waxy 24.28%
    Delicate 23.32%
    Beer 23.24%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    6.91 (neutral)

    Molecular weight
    481.7 g/mol

    Flash point

    • 44.0 ˚C est.

  • Synonyms

    • Surfactive V 18
    • Stearoyl ethyltrimonium methosulfate
    • UNII-WRL6E4QEWW
    • WRL6E4QEWW
    • Stearoyl ethyltrimonium methosulfate [INCI]
    • 114519-87-8
    • Ethanaminium, N,N,N-trimethyl-2-((1-oxooctadecyl)oxy)-, methyl sulfate
    • Ethanaminium, N,N,N-trimethyl-2-((1-oxooctadecyl)oxy)-, methyl sulfate (1:1)
    • RefChem:185407
    • Q27292793
    • 114519-87-8

  • Applications

    Stearoyl Ethyltrimonium Methosulfate (CAS 114519-87-8) is a fatty‑quaternary ammonium surfactant commonly used as a conditioning agent and emulsifier in cosmetic and personal care formulations. In hair care, it provides conditioning, slip and easy rinse; in skincare, it acts as a mild surfactant and emulsifier for cleansers and lotions. It is also found in household products as a fabric‑softening and anti‑static additive in laundry formulations and dish/household cleaners. In industrial manufacturing, it can function as a surfactant/emulsifier or processing aid in coatings, inks and polymer emulsions, improving dispersion and stability. It may be used as a specialty surfactant in polymer and plastics processing as a slip or anti‑static additive. Formulation-specific use depends on local regulations and limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 114.6
    methanol 125.39
    isopropanol 130.74
    water 0.71
    ethyl acetate 706.14
    n-propanol 176.64
    acetone 392.79
    n-butanol 208.62
    acetonitrile 169.78
    DMF 444.32
    toluene 297.26
    isobutanol 206.24
    1,4-dioxane 637.73
    methyl acetate 431.8
    THF 1165.33
    2-butanone 529.69
    n-pentanol 159.52
    sec-butanol 227.32
    n-hexane 96.64
    ethylene glycol 13.5
    NMP 1161.3
    cyclohexane 566.67
    DMSO 472.24
    n-butyl acetate 631.91
    n-octanol 206.42
    chloroform 2289.9
    n-propyl acetate 742.77
    acetic acid 394.11
    dichloromethane 2070.16
    cyclohexanone 1690.03
    propylene glycol 37.63
    isopropyl acetate 664.5
    DMAc 904.11
    2-ethoxyethanol 304.83
    isopentanol 256.84
    n-heptane 105.06
    ethyl formate 336.12
    1,2-dichloroethane 1211.11
    n-hexanol 147.05
    2-methoxyethanol 309.45
    isobutyl acetate 520.83
    tetrachloromethane 678.77
    n-pentyl acetate 1076.73
    transcutol 1383.9
    n-heptanol 211.96
    ethylbenzene 205.2
    MIBK 516.4
    2-propoxyethanol 287.15
    tert-butanol 267.16
    MTBE 418.87
    2-butoxyethanol 490.24
    propionic acid 326.05
    o-xylene 295.17
    formic acid 92.61
    diethyl ether 382.22
    m-xylene 229.42
    p-xylene 335.78
    chlorobenzene 515.06
    dimethyl carbonate 167.67
    n-octane 51.39
    formamide 153.69
    cyclopentanone 1308.89
    2-pentanone 590.49
    anisole 318.04
    cyclopentyl methyl ether 943.13
    gamma-butyrolactone 1280.76
    1-methoxy-2-propanol 340.19
    pyridine 655.32
    3-pentanone 559.35
    furfural 876.1
    n-dodecane 21.9
    diethylene glycol 120.84
    diisopropyl ether 227.06
    tert-amyl alcohol 360.9
    acetylacetone 744.27
    n-hexadecane 27.25
    acetophenone 470.44
    methyl propionate 496.23
    isopentyl acetate 634.97
    trichloroethylene 2144.69
    n-nonanol 209.76
    cyclohexanol 635.69
    benzyl alcohol 217.63
    2-ethylhexanol 206.05
    isooctanol 243.3
    dipropyl ether 414.45
    1,2-dichlorobenzene 640.14
    ethyl lactate 270.79
    propylene carbonate 848.93
    n-methylformamide 215.33
    2-pentanol 207.11
    n-pentane 79.45
    1-propoxy-2-propanol 371.53
    1-methoxy-2-propyl acetate 516.08
    2-(2-methoxypropoxy) propanol 340.96
    mesitylene 194.58
    ε-caprolactone 1504.33
    p-cymene 177.51
    epichlorohydrin 1311.99
    1,1,1-trichloroethane 1684.79
    2-aminoethanol 55.74
    morpholine-4-carbaldehyde 844.18
    sulfolane 1699.48
    2,2,4-trimethylpentane 81.3
    2-methyltetrahydrofuran 1090.81
    n-hexyl acetate 856.52
    isooctane 38.03
    2-(2-butoxyethoxy)ethanol 485.08
    sec-butyl acetate 621.86
    tert-butyl acetate 781.96
    decalin 134.79
    glycerin 69.61
    diglyme 1168.18
    acrylic acid 226.46
    isopropyl myristate 247.07
    n-butyric acid 753.35
    acetyl acetate 514.23
    di(2-ethylhexyl) phthalate 196.18
    ethyl propionate 620.68
    nitromethane 633.65
    1,2-diethoxyethane 646.81
    benzonitrile 324.22
    trioctyl phosphate 159.61
    1-bromopropane 715.98
    gamma-valerolactone 1593.77
    n-decanol 127.67
    triethyl phosphate 336.69
    4-methyl-2-pentanol 166.51
    propionitrile 216.78
    vinylene carbonate 705.78
    1,1,2-trichlorotrifluoroethane 1043.81
    DMS 425.52
    cumene 157.56
    2-octanol 207.52
    2-hexanone 560.07
    octyl acetate 313.35
    limonene 357.91
    1,2-dimethoxyethane 700.14
    ethyl orthosilicate 352.15
    tributyl phosphate 220.96
    diacetone alcohol 562.63
    N,N-dimethylaniline 255.62
    acrylonitrile 209.87
    aniline 288.85
    1,3-propanediol 126.58
    bromobenzene 603.96
    dibromomethane 1358.33
    1,1,2,2-tetrachloroethane 2154.13
    2-methyl-cyclohexyl acetate 513.87
    tetrabutyl urea 299.56
    diisobutyl methanol 166.33
    2-phenylethanol 192.95
    styrene 221.34
    dioctyl adipate 383.09
    dimethyl sulfate 371.06
    ethyl butyrate 636.23
    methyl lactate 201.64
    butyl lactate 587.21
    diethyl carbonate 356.41
    propanediol butyl ether 322.89
    triethyl orthoformate 542.84
    p-tert-butyltoluene 163.21
    methyl 4-tert-butylbenzoate 524.29
    morpholine 838.72
    tert-butylamine 212.35
    n-dodecanol 87.24
    dimethoxymethane 361.73
    ethylene carbonate 703.69
    cyrene 368.02
    2-ethoxyethyl acetate 911.12
    2-ethylhexyl acetate 593.67
    1,2,4-trichlorobenzene 773.71
    4-methylpyridine 653.56
    dibutyl ether 490.85
    2,6-dimethyl-4-heptanol 166.33
    DEF 785.34
    dimethyl isosorbide 706.61
    tetrachloroethylene 1559.66
    eugenol 373.48
    triacetin 819.82
    span 80 369.78
    1,4-butanediol 57.27
    1,1-dichloroethane 1111.16
    2-methyl-1-pentanol 215.85
    methyl formate 172.06
    2-methyl-1-butanol 268.12
    n-decane 57.82
    butyronitrile 294.92
    3,7-dimethyl-1-octanol 216.27
    1-chlorooctane 273.96
    1-chlorotetradecane 72.65
    n-nonane 60.51
    undecane 32.79
    tert-butylcyclohexane 92.57
    cyclooctane 136.54
    cyclopentanol 513.4
    tetrahydropyran 1101.13
    tert-amyl methyl ether 474.81
    2,5,8-trioxanonane 597.64
    1-hexene 206.98
    2-isopropoxyethanol 300.62
    2,2,2-trifluoroethanol 240.07
    methyl butyrate 875.39

    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