Sodium N-methyl-N-oleoyltaurate

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  • Identifiers

    CAS number
    137-20-2

    Molecular formula
    C21H40NNaO4S

    SMILES
    CCCCCCCC/C=C\CCCCCCCC(=O)N(C)CCS(=O)(=O)[O-].[Na+]

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 40.77%
    Fatty 35.13%
    Savory 31.19%
    Meaty 29.57%
    Waxy 28.14%
    Oily 25.42%
    Citrus 23.37%
    Fresh 23.33%
    Milky 21.43%
    Cooling 21.11%

     

    Flavor
    Bland 28.39%
    Herbal 26.13%
    Odorless 22.04%
    Faint 21.49%
    Mild 20.73%
    Slightly waxy 19.6%
    Oriental 19.0%
    Delicate 18.95%
    Low 18.93%
    Diterpene 18.88%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    5.8 (weak acid)

    Molecular weight
    425.6 g/mol

    Flash point

    • 227.62 ˚C est.

  • Synonyms

    • Metaupon paste
    • 137-20-2
    • Sodium methyl oleoyl taurate
    • SODIUM N-METHYL-N-OLEOYLTAURATE
    • Hostapon T
    • Nissan diapon T
    • Adinol T
    • Igepon T
    • Nissan diapion S
    • Igepon TE
    • Igepon T 33
    • Igepon T 51
    • Igepon T 77
    • Igepon T-43
    • Igepon T-71
    • Igepon T-73
    • Oleoylmethyltaurine sodium salt
    • Sodium oleylmethyltauride
    • N-Methyl-N-oleoyltaurine sodium salt
    • Concogel 2 conc.
    • Sodium N-oleoyl-N-methyltaurate
    • Sodium N-oleoyl-N-methyltaurine
    • Sodium N-oleoyl-N-methylataurine
    • HSDB 5624
    • Sodium N-methyl-N-oleoyl taurate
    • Taurine, N-methyl-N-oleoyl-, sodium salt
    • Sodium Methyl Oleyl Taurate
    • EINECS 205-285-7
    • ADINOL OT
    • Sodium N-oleoyl-N-methyl taurate
    • Sodium 2-(N-methyloleamido)ethane-1-sulfonate
    • 8PZ076134H
    • JEEPON T-33
    • DTXSID5027067
    • Sodium 2-(methyloleoylamino)ethane-1-sulphonate
    • Sodium 2-[methyloleoylamino]ethane-1-sulphonate
    • SODIUM OLEYL METHYL TAURATE
    • Ethanesulfonic acid, 2-(methyl(1-oxo-9-octadecenyl)amino)-, sodium salt, (Z)-
    • 2-(Methyl(1-oxo-9-octadecenyl)amino)ethanesulfonic acid, sodium salt
    • Ethanesulfonic acid, 2-(methyl(1-oxo-9-octadecenyl)amino)-, sodium salt
    • Ethanesulfonic acid, 2-(methyl((9Z)-1-oxo-9-octadecenyl)amino)-, sodium salt
    • Ethanesulfonic acid, 2-(methyl(1-oxo-9-octadecenyl)amino)-, sodium salt, Z-
    • SODIUM N-METHYL-N-OLEOYLTAURATE [HSDB]
    • Ethanesulfonic acid, 2-(methyl((9Z)-1-oxo-9-octadecen-1-yl)amino)-, sodium salt (1:1)
    • Ethanesulfonic acid, 2-[methyl[(9Z)-1-oxo-9-octadecen-1-yl]amino]-, sodium salt (1:1)
    • Ethanesulfonic acid, 2-[methyl[(9Z)-1-oxo-9-octadecenyl]amino]-, sodium salt
    • Concogel 2 conc
    • Igepon T43
    • Igepon T71
    • Igepon T73
    • RefChem:887724
    • Alkyl sodium Nmethyltaurate
    • Sodium NoleoylNmethyltaurate
    • Sodium NoleoylNmethylataurine
    • Sodium NmethylNoleoyl taurate
    • DTXCID307067
    • NMethylNoleoyltaurine sodium salt
    • Taurine, NmethylNoleoyl, sodium salt
    • Sodium 2(Nmethyloleamido)ethane1sulfonate
    • SODIUM METHYL OLEOYL TAURATE [INCI]
    • 2(Methyl(1oxo9octadecenyl)amino)ethanesulfonic acid, sodium salt
    • Ethanesulfonic acid, 2(methyl(1oxo9octadecenyl)amino), sodium salt
    • Ethanesulfonic acid, 2(methyl(1oxo9octadecenyl)amino), sodium salt, (Z)
    • Ethanesulfonic acid, 2-(methyl(1-oxo-9-octadecenyl)amino)-, sodium salt, Z-(9CI)
    • sodium;2-[methyl-[(Z)-octadec-9-enoyl]amino]ethanesulfonate
    • Sodium 2-(N-methyloleamido)ethanesulfonate
    • sodium-n-methyl-n-oleyl taurate
    • N-Methyloleoyltaurine
    • UNII-8PZ076134H
    • N-Methyl-N-oleoyltaurine, sodium salt
    • 39388-01-7
    • SCHEMBL139582
    • IZWPGJFSBABFGL-GMFCBQQYSA-M
    • n-oleoyl-n-methyltaurine sodium salt
    • oleic acid methyl tauride sodium salt
    • FN158481
    • NS00079350
    • Q27270873
    • Sodium 2-[(9Z)-N-methyloctadec-9-enamido]ethane-1-sulfonate
    • 137-20-2

  • Applications

    Sodium N-methyl-N-oleoyltaurate (CAS 137-20-2) is commonly used as a surfactant, amphoteric emulsifier and dispersant in real-world formulations; in cosmetics and personal care it serves as a mild surfactant and emulsifier for products such as shampoos, cleansers and moisturizers, and it is also used in household and cleaning products due to its gentle nature and good wetting; in the plastics and rubber industries it acts as a dispersant and processing aid to improve pigment and filler dispersion and to stabilize emulsions; in coatings and inks it functions as an emulsifier/dispersant and processing aid for paints and inks; in adhesives it may serve as a compatibilizer to link dissimilar phases. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 6.47
    methanol 12.06
    isopropanol 4.31
    water 0.05
    ethyl acetate 12.37
    n-propanol 7.11
    acetone 23.89
    n-butanol 6.29
    acetonitrile 8.21
    DMF 92.7
    toluene 10.69
    isobutanol 5.61
    1,4-dioxane 22.6
    methyl acetate 13.76
    THF 72.79
    2-butanone 25.31
    n-pentanol 7.21
    sec-butanol 6.54
    n-hexane 0.5
    ethylene glycol 1.47
    NMP 240.93
    cyclohexane 1.97
    DMSO 83.1
    n-butyl acetate 14.73
    n-octanol 6.81
    chloroform 72.94
    n-propyl acetate 18.18
    acetic acid 20.54
    dichloromethane 82.18
    cyclohexanone 86.26
    propylene glycol 4.35
    isopropyl acetate 12.79
    DMAc 205.02
    2-ethoxyethanol 25.39
    isopentanol 7.56
    n-heptane 0.51
    ethyl formate 12.33
    1,2-dichloroethane 44.31
    n-hexanol 5.32
    2-methoxyethanol 27.67
    isobutyl acetate 12.5
    tetrachloromethane 8.2
    n-pentyl acetate 24.47
    transcutol 141.21
    n-heptanol 6.73
    ethylbenzene 7.91
    MIBK 18.72
    2-propoxyethanol 23.17
    tert-butanol 7.9
    MTBE 8.28
    2-butoxyethanol 26.81
    propionic acid 13.85
    o-xylene 11.93
    formic acid 10.9
    diethyl ether 5.27
    m-xylene 9.03
    p-xylene 10.16
    chlorobenzene 19.81
    dimethyl carbonate 11.52
    n-octane 0.35
    formamide 21.74
    cyclopentanone 102.89
    2-pentanone 21.32
    anisole 22.96
    cyclopentyl methyl ether 28.85
    gamma-butyrolactone 92.47
    1-methoxy-2-propanol 27.81
    pyridine 40.91
    3-pentanone 21.49
    furfural 92.64
    n-dodecane 0.32
    diethylene glycol 14.98
    diisopropyl ether 2.66
    tert-amyl alcohol 10.27
    acetylacetone 41.99
    n-hexadecane 0.38
    acetophenone 41.69
    methyl propionate 17.56
    isopentyl acetate 16.62
    trichloroethylene 108.16
    n-nonanol 7.24
    cyclohexanol 13.67
    benzyl alcohol 19.98
    2-ethylhexanol 5.39
    isooctanol 6.76
    dipropyl ether 6.38
    1,2-dichlorobenzene 29.18
    ethyl lactate 16.47
    propylene carbonate 46.85
    n-methylformamide 25.41
    2-pentanol 4.16
    n-pentane 0.4
    1-propoxy-2-propanol 20.19
    1-methoxy-2-propyl acetate 25.72
    2-(2-methoxypropoxy) propanol 40.23
    mesitylene 6.06
    ε-caprolactone 72.0
    p-cymene 5.83
    epichlorohydrin 87.94
    1,1,1-trichloroethane 34.16
    2-aminoethanol 5.45
    morpholine-4-carbaldehyde 123.67
    sulfolane 199.97
    2,2,4-trimethylpentane 0.75
    2-methyltetrahydrofuran 37.81
    n-hexyl acetate 24.79
    isooctane 0.34
    2-(2-butoxyethoxy)ethanol 45.34
    sec-butyl acetate 13.37
    tert-butyl acetate 22.09
    decalin 1.6
    glycerin 10.77
    diglyme 93.31
    acrylic acid 14.87
    isopropyl myristate 8.34
    n-butyric acid 20.58
    acetyl acetate 14.72
    di(2-ethylhexyl) phthalate 15.67
    ethyl propionate 15.56
    nitromethane 50.39
    1,2-diethoxyethane 23.37
    benzonitrile 21.33
    trioctyl phosphate 8.17
    1-bromopropane 13.69
    gamma-valerolactone 149.01
    n-decanol 4.62
    triethyl phosphate 15.12
    4-methyl-2-pentanol 4.18
    propionitrile 8.73
    vinylene carbonate 43.01
    1,1,2-trichlorotrifluoroethane 88.68
    DMS 21.35
    cumene 6.29
    2-octanol 4.78
    2-hexanone 22.68
    octyl acetate 11.37
    limonene 8.79
    1,2-dimethoxyethane 48.62
    ethyl orthosilicate 14.47
    tributyl phosphate 11.11
    diacetone alcohol 33.89
    N,N-dimethylaniline 21.85
    acrylonitrile 13.58
    aniline 15.11
    1,3-propanediol 7.89
    bromobenzene 21.15
    dibromomethane 40.09
    1,1,2,2-tetrachloroethane 96.78
    2-methyl-cyclohexyl acetate 24.11
    tetrabutyl urea 21.23
    diisobutyl methanol 3.97
    2-phenylethanol 15.27
    styrene 9.96
    dioctyl adipate 21.44
    dimethyl sulfate 40.54
    ethyl butyrate 15.57
    methyl lactate 19.04
    butyl lactate 27.34
    diethyl carbonate 11.71
    propanediol butyl ether 29.39
    triethyl orthoformate 16.6
    p-tert-butyltoluene 5.54
    methyl 4-tert-butylbenzoate 43.51
    morpholine 37.67
    tert-butylamine 4.13
    n-dodecanol 3.17
    dimethoxymethane 31.94
    ethylene carbonate 30.31
    cyrene 61.41
    2-ethoxyethyl acetate 38.62
    2-ethylhexyl acetate 14.38
    1,2,4-trichlorobenzene 38.88
    4-methylpyridine 37.28
    dibutyl ether 8.07
    2,6-dimethyl-4-heptanol 3.97
    DEF 43.63
    dimethyl isosorbide 83.55
    tetrachloroethylene 55.12
    eugenol 40.6
    triacetin 48.76
    span 80 32.37
    1,4-butanediol 4.73
    1,1-dichloroethane 26.01
    2-methyl-1-pentanol 9.27
    methyl formate 16.47
    2-methyl-1-butanol 8.02
    n-decane 0.64
    butyronitrile 9.19
    3,7-dimethyl-1-octanol 6.95
    1-chlorooctane 4.61
    1-chlorotetradecane 1.59
    n-nonane 0.53
    undecane 0.42
    tert-butylcyclohexane 1.03
    cyclooctane 0.62
    cyclopentanol 16.39
    tetrahydropyran 24.33
    tert-amyl methyl ether 10.83
    2,5,8-trioxanonane 67.95
    1-hexene 2.5
    2-isopropoxyethanol 19.0
    2,2,2-trifluoroethanol 12.38
    methyl butyrate 26.81

    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