Ammonium Myreth Sulfate

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  • Identifiers

    CAS number
    27731-61-9

    Molecular formula
    C28H62NO5S-

    SMILES
    CCCCCCCCCCCCCCOCCCCCCCCCCCCCC.[NH4+].[O-]S(=O)(=O)[O-]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Waxy 67.51%
    Fatty 53.28%
    Oily 49.54%
    Fruity 38.76%
    Fresh 27.52%
    Clean 26.83%
    Sweet 23.76%
    Odorless 23.17%
    Floral 23.04%
    Citrus 21.57%

     

    Flavor
    Waxy 59.21%
    Alkane 42.46%
    Mild 34.31%
    Fatty 32.48%
    Fat 27.75%
    Wax 27.08%
    Bland 26.48%
    Flower 26.18%
    Oily 25.06%
    Slightly waxy 24.51%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    7.89 (neutral)

    Molecular weight
    524.9 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    479°C

    Flash point

    • 211.86 ˚C est.

  • Synonyms

    • Ammonium myreth sulfate
    • 27731-61-9
    • RefChem:112181
    • DTXSID1049728
    • Ammonium myristyl ether sulfate
    • 27731-61-9

  • Applications

    Ammonium Myreth Sulfate (CAS 27731-61-9) is an anionic surfactant commonly used as a cleansing and emulsifying agent in formulated products. In personal care, it provides foaming and cleansing performance in shampoos, body washes, and facial cleansers; in household and industrial cleaners, it serves as a primary surfactant and foam builder in laundry detergents and dishwashing formulations; in paints, coatings, and inks it acts as a wetting agent and pigment dispersant to improve dispersion and film formation; and in emulsion polymerization and latex-based formulations it helps stabilize emulsions and maintain polymer dispersion.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 7.49
    methanol 6.67
    isopropanol 11.35
    water 0.05
    ethyl acetate 204.28
    n-propanol 17.21
    acetone 75.26
    n-butanol 26.87
    acetonitrile 24.71
    DMF 78.72
    toluene 84.39
    isobutanol 24.94
    1,4-dioxane 201.25
    methyl acetate 103.9
    THF 468.44
    2-butanone 132.45
    n-pentanol 24.98
    sec-butanol 30.0
    n-hexane 57.73
    ethylene glycol 1.08
    NMP 427.9
    cyclohexane 369.58
    DMSO 147.83
    n-butyl acetate 343.6
    n-octanol 81.16
    chloroform 701.62
    n-propyl acetate 289.54
    acetic acid 38.77
    dichloromethane 652.24
    cyclohexanone 602.37
    propylene glycol 3.2
    isopropyl acetate 250.35
    DMAc 252.09
    2-ethoxyethanol 53.74
    isopentanol 49.06
    n-heptane 140.08
    ethyl formate 65.38
    1,2-dichloroethane 390.44
    n-hexanol 34.12
    2-methoxyethanol 42.31
    isobutyl acetate 228.2
    tetrachloromethane 271.09
    n-pentyl acetate 582.2
    transcutol 506.81
    n-heptanol 64.4
    ethylbenzene 91.12
    MIBK 214.11
    2-propoxyethanol 73.98
    tert-butanol 40.14
    MTBE 150.14
    2-butoxyethanol 139.43
    propionic acid 47.88
    o-xylene 110.85
    formic acid 6.09
    diethyl ether 110.25
    m-xylene 83.4
    p-xylene 139.18
    chlorobenzene 171.39
    dimethyl carbonate 49.55
    n-octane 59.89
    formamide 11.87
    cyclopentanone 471.06
    2-pentanone 172.37
    anisole 156.57
    cyclopentyl methyl ether 435.69
    gamma-butyrolactone 449.92
    1-methoxy-2-propanol 60.25
    pyridine 182.06
    3-pentanone 189.05
    furfural 270.84
    n-dodecane 23.48
    diethylene glycol 20.86
    diisopropyl ether 121.48
    tert-amyl alcohol 72.17
    acetylacetone 262.19
    n-hexadecane 30.24
    acetophenone 224.13
    methyl propionate 135.04
    isopentyl acetate 394.81
    trichloroethylene 653.89
    n-nonanol 94.01
    cyclohexanol 135.38
    benzyl alcohol 54.04
    2-ethylhexanol 95.33
    isooctanol 94.04
    dipropyl ether 370.01
    1,2-dichlorobenzene 269.57
    ethyl lactate 87.56
    propylene carbonate 302.33
    n-methylformamide 26.5
    2-pentanol 36.57
    n-pentane 32.29
    1-propoxy-2-propanol 136.39
    1-methoxy-2-propyl acetate 292.83
    2-(2-methoxypropoxy) propanol 158.98
    mesitylene 95.21
    ε-caprolactone 557.4
    p-cymene 144.91
    epichlorohydrin 428.45
    1,1,1-trichloroethane 666.31
    2-aminoethanol 4.6
    morpholine-4-carbaldehyde 251.45
    sulfolane 821.87
    2,2,4-trimethylpentane 53.74
    2-methyltetrahydrofuran 454.8
    n-hexyl acetate 450.91
    isooctane 29.05
    2-(2-butoxyethoxy)ethanol 179.99
    sec-butyl acetate 295.54
    tert-butyl acetate 426.05
    decalin 118.75
    glycerin 7.63
    diglyme 592.93
    acrylic acid 31.11
    isopropyl myristate 193.21
    n-butyric acid 133.75
    acetyl acetate 188.34
    di(2-ethylhexyl) phthalate 101.01
    ethyl propionate 285.21
    nitromethane 102.0
    1,2-diethoxyethane 418.57
    benzonitrile 91.21
    trioctyl phosphate 87.36
    1-bromopropane 263.93
    gamma-valerolactone 531.56
    n-decanol 59.74
    triethyl phosphate 300.36
    4-methyl-2-pentanol 42.94
    propionitrile 38.68
    vinylene carbonate 211.36
    1,1,2-trichlorotrifluoroethane 268.02
    DMS 190.12
    cumene 85.03
    2-octanol 79.01
    2-hexanone 209.92
    octyl acetate 194.17
    limonene 288.94
    1,2-dimethoxyethane 256.42
    ethyl orthosilicate 318.92
    tributyl phosphate 133.43
    diacetone alcohol 215.98
    N,N-dimethylaniline 140.5
    acrylonitrile 33.32
    aniline 66.1
    1,3-propanediol 12.86
    bromobenzene 247.79
    dibromomethane 454.28
    1,1,2,2-tetrachloroethane 716.06
    2-methyl-cyclohexyl acetate 416.73
    tetrabutyl urea 201.77
    diisobutyl methanol 124.68
    2-phenylethanol 64.08
    styrene 92.62
    dioctyl adipate 279.87
    dimethyl sulfate 139.49
    ethyl butyrate 509.71
    methyl lactate 45.36
    butyl lactate 243.01
    diethyl carbonate 268.18
    propanediol butyl ether 79.34
    triethyl orthoformate 496.97
    p-tert-butyltoluene 131.71
    methyl 4-tert-butylbenzoate 329.86
    morpholine 210.21
    tert-butylamine 39.06
    n-dodecanol 43.9
    dimethoxymethane 87.68
    ethylene carbonate 224.6
    cyrene 168.7
    2-ethoxyethyl acetate 430.1
    2-ethylhexyl acetate 410.18
    1,2,4-trichlorobenzene 321.35
    4-methylpyridine 181.56
    dibutyl ether 419.11
    2,6-dimethyl-4-heptanol 124.68
    DEF 251.22
    dimethyl isosorbide 474.8
    tetrachloroethylene 471.41
    eugenol 179.2
    triacetin 457.93
    span 80 155.08
    1,4-butanediol 6.6
    1,1-dichloroethane 317.75
    2-methyl-1-pentanol 48.33
    methyl formate 25.54
    2-methyl-1-butanol 45.78
    n-decane 63.13
    butyronitrile 56.2
    3,7-dimethyl-1-octanol 119.34
    1-chlorooctane 200.49
    1-chlorotetradecane 60.58
    n-nonane 65.35
    undecane 35.37
    tert-butylcyclohexane 80.43
    cyclooctane 129.12
    cyclopentanol 105.91
    tetrahydropyran 382.71
    tert-amyl methyl ether 206.65
    2,5,8-trioxanonane 298.9
    1-hexene 74.5
    2-isopropoxyethanol 65.63
    2,2,2-trifluoroethanol 32.53
    methyl butyrate 351.72

    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