Stearoxypropyltrimonium Chloride

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  • Identifiers

    CAS number
    23328-71-4

    Molecular formula
    C24H52ClNO

    SMILES
    CCCCCCCCCCCCCCCCCCOCCC[N+](C)(C)C.[Cl-]

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Waxy 62.09%
    Fatty 46.53%
    Oily 45.04%
    Fruity 38.77%
    Woody 33.5%
    Fresh 33.44%
    Floral 31.2%
    Clean 28.52%
    Amber 26.72%
    Balsamic 25.74%

     

    Flavor
    Waxy 39.7%
    Mild 33.73%
    Bland 28.12%
    Oily 26.74%
    Delicate 24.26%
    Flower 23.7%
    Slightly waxy 23.39%
    Floral 22.89%
    Fatty 22.85%
    Fat 22.51%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    7.61 (neutral)

    Molecular weight
    406.1 g/mol

    Flash point

    • 104.06 ˚C est.

  • Synonyms

    • Stearoxypropyltrimonium chloride
    • Quartamin E-80k
    • 23328-71-4
    • UNII-LC1M3R2X4H
    • LC1M3R2X4H
    • 1-Propanaminium, N,N,N-trimethyl-3-(octadecyloxy)-, chloride (1:1)
    • 3-Octadecyloxypropyltrimethylammonium chloride
    • Stearoxypropyltrimonium chloride [INCI]
    • Ammonium, trimethyl(3-(octadecyloxy)propyl)-, chloride
    • 1-Propanaminium, N,N,N-trimethyl-3-(octadecyloxy)-, chloride
    • DTXSID10177878
    • EC 700-414-8
    • RefChem:185405
    • DTXCID70100369
    • trimethyl(3-octadecoxypropyl)azanium;chloride
    • N,N,N-Trimethyl-3-(octadecyloxy)propan-1-aminium chloride
    • SCHEMBL115731
    • N,N,N-trimethyl-3-(octadecyloxy)propan-1-ammonium chloride
    • CS-0435543
    • NS00078235
    • N,N,N-trimethyl-3-octadecyloxypropylammonium chloride
    • Q27282908
    • 23328-71-4

  • Applications

    Stearoxypropyltrimonium chloride (CAS 23328-71-4) is a quaternary ammonium salt derived from stearic acid and is widely used as a cationic surfactant and conditioning agent in cosmetics and personal care. In practical formulations, it serves as a conditioning ingredient in hair care products such as shampoos and conditioners and as a skin-conditioning emollient; functions as a surfactant and fabric conditioning component in household cleaners; acts as an antistatic additive and surface-modifying agent in polymers and plastics; is used as a surfactant/dispersion aid or surface-modifying additive in coatings and inks; and can be employed as an additive in adhesives to modify surface properties.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 156.31
    methanol 139.06
    isopropanol 183.96
    water 0.83
    ethyl acetate 839.08
    n-propanol 247.74
    acetone 392.68
    n-butanol 333.36
    acetonitrile 156.18
    DMF 375.38
    toluene 360.94
    isobutanol 292.81
    1,4-dioxane 838.99
    methyl acetate 487.22
    THF 1266.42
    2-butanone 590.03
    n-pentanol 257.13
    sec-butanol 326.97
    n-hexane 284.37
    ethylene glycol 18.12
    NMP 852.24
    cyclohexane 1242.36
    DMSO 519.89
    n-butyl acetate 938.53
    n-octanol 305.63
    chloroform 2383.62
    n-propyl acetate 953.45
    acetic acid 338.54
    dichloromethane 2017.78
    cyclohexanone 1723.45
    propylene glycol 45.43
    isopropyl acetate 814.92
    DMAc 759.33
    2-ethoxyethanol 394.39
    isopentanol 391.24
    n-heptane 464.75
    ethyl formate 355.37
    1,2-dichloroethane 1277.75
    n-hexanol 271.94
    2-methoxyethanol 352.34
    isobutyl acetate 730.19
    tetrachloromethane 956.4
    n-pentyl acetate 1216.52
    transcutol 1423.79
    n-heptanol 348.41
    ethylbenzene 281.33
    MIBK 640.28
    2-propoxyethanol 417.32
    tert-butanol 366.33
    MTBE 682.51
    2-butoxyethanol 634.37
    propionic acid 354.52
    o-xylene 355.06
    formic acid 76.24
    diethyl ether 697.59
    m-xylene 294.86
    p-xylene 434.07
    chlorobenzene 474.72
    dimethyl carbonate 179.21
    n-octane 158.52
    formamide 105.57
    cyclopentanone 1150.09
    2-pentanone 713.45
    anisole 360.13
    cyclopentyl methyl ether 1231.34
    gamma-butyrolactone 1083.82
    1-methoxy-2-propanol 394.11
    pyridine 607.02
    3-pentanone 699.56
    furfural 666.04
    n-dodecane 54.57
    diethylene glycol 151.69
    diisopropyl ether 440.11
    tert-amyl alcohol 510.46
    acetylacetone 683.09
    n-hexadecane 65.81
    acetophenone 471.75
    methyl propionate 560.19
    isopentyl acetate 950.68
    trichloroethylene 1844.29
    n-nonanol 311.2
    cyclohexanol 876.77
    benzyl alcohol 236.39
    2-ethylhexanol 422.1
    isooctanol 406.25
    dipropyl ether 975.54
    1,2-dichlorobenzene 585.27
    ethyl lactate 337.96
    propylene carbonate 768.73
    n-methylformamide 191.08
    2-pentanol 356.2
    n-pentane 239.08
    1-propoxy-2-propanol 584.47
    1-methoxy-2-propyl acetate 668.0
    2-(2-methoxypropoxy) propanol 379.67
    mesitylene 270.5
    ε-caprolactone 1538.83
    p-cymene 332.67
    epichlorohydrin 1192.58
    1,1,1-trichloroethane 1729.9
    2-aminoethanol 68.32
    morpholine-4-carbaldehyde 803.78
    sulfolane 1336.75
    2,2,4-trimethylpentane 212.23
    2-methyltetrahydrofuran 1373.61
    n-hexyl acetate 945.48
    isooctane 112.07
    2-(2-butoxyethoxy)ethanol 545.65
    sec-butyl acetate 847.22
    tert-butyl acetate 981.03
    decalin 294.86
    glycerin 77.45
    diglyme 1476.29
    acrylic acid 208.36
    isopropyl myristate 351.58
    n-butyric acid 815.12
    acetyl acetate 554.07
    di(2-ethylhexyl) phthalate 215.23
    ethyl propionate 832.84
    nitromethane 477.23
    1,2-diethoxyethane 996.53
    benzonitrile 305.52
    trioctyl phosphate 198.1
    1-bromopropane 979.81
    gamma-valerolactone 1424.21
    n-decanol 199.64
    triethyl phosphate 515.12
    4-methyl-2-pentanol 292.84
    propionitrile 252.94
    vinylene carbonate 620.69
    1,1,2-trichlorotrifluoroethane 993.16
    DMS 421.07
    cumene 235.18
    2-octanol 310.03
    2-hexanone 712.87
    octyl acetate 382.23
    limonene 634.44
    1,2-dimethoxyethane 954.32
    ethyl orthosilicate 575.39
    tributyl phosphate 269.08
    diacetone alcohol 653.32
    N,N-dimethylaniline 310.06
    acrylonitrile 198.55
    aniline 290.7
    1,3-propanediol 157.8
    bromobenzene 571.82
    dibromomethane 1525.8
    1,1,2,2-tetrachloroethane 2051.27
    2-methyl-cyclohexyl acetate 750.66
    tetrabutyl urea 347.09
    diisobutyl methanol 386.46
    2-phenylethanol 233.37
    styrene 270.41
    dioctyl adipate 458.47
    dimethyl sulfate 344.11
    ethyl butyrate 1057.33
    methyl lactate 212.86
    butyl lactate 642.08
    diethyl carbonate 559.05
    propanediol butyl ether 335.41
    triethyl orthoformate 976.24
    p-tert-butyltoluene 307.5
    methyl 4-tert-butylbenzoate 560.54
    morpholine 1007.42
    tert-butylamine 321.85
    n-dodecanol 142.21
    dimethoxymethane 406.8
    ethylene carbonate 700.93
    cyrene 376.13
    2-ethoxyethyl acetate 969.33
    2-ethylhexyl acetate 923.38
    1,2,4-trichlorobenzene 673.98
    4-methylpyridine 614.07
    dibutyl ether 873.99
    2,6-dimethyl-4-heptanol 386.46
    DEF 888.26
    dimethyl isosorbide 711.45
    tetrachloroethylene 1570.98
    eugenol 384.67
    triacetin 844.35
    span 80 425.71
    1,4-butanediol 77.93
    1,1-dichloroethane 1148.7
    2-methyl-1-pentanol 336.86
    methyl formate 158.0
    2-methyl-1-butanol 397.83
    n-decane 145.68
    butyronitrile 364.61
    3,7-dimethyl-1-octanol 347.01
    1-chlorooctane 447.05
    1-chlorotetradecane 128.67
    n-nonane 161.57
    undecane 80.46
    tert-butylcyclohexane 230.21
    cyclooctane 401.58
    cyclopentanol 617.19
    tetrahydropyran 1635.75
    tert-amyl methyl ether 758.6
    2,5,8-trioxanonane 652.55
    1-hexene 408.59
    2-isopropoxyethanol 394.44
    2,2,2-trifluoroethanol 221.58
    methyl butyrate 1109.45

    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