Sodium methylnaphthalenesulfonate

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  • Identifiers

    CAS number
    977052-10-0

    Molecular formula
    C11H9NaO3S

    SMILES
    CC1=C(C2=CC=CC=C2C=C1)S(=O)(=O)[O-].[Na+]

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 63.65%
    Bitter 24.36%
    Cooked 20.55%
    Grape 19.92%
    Burnt 19.0%
    Savory 16.34%
    Neroli 15.75%
    Honey 15.74%
    Phenolic 15.68%
    Roasted 15.57%

     

    Flavor
    Bitter 73.6%
    Odorless 25.52%
    Nitrile 21.9%
    Very strong 19.74%
    Indole 19.53%
    Taco 19.16%
    Urine 19.15%
    Moth ball 18.96%
    Bread crust 18.86%
    Roasted peanuts 18.83%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    3.98 (weak acid)

    Molecular weight
    244.24 g/mol

    Flash point

    • 180.15 ˚C est.

  • Synonyms

    • Sodium methylnaphthalenesulfonate
    • Sodium methylnaphthalenesulphonate
    • Methylnaphthalenesulfonic acid, sodium salt
    • Naphthalenesulfonic acid, methyl-, sodium salt
    • EINECS 247-564-6
    • Naphthalenesulfonic acid, methyl-, sodium salt (1:1)
    • RefChem:887693
    • Sodium methylnapthalenesulfonate
    • REDI PRO Glass and Counter Cleaner
    • Naphthalenesulfonic acid, methyl, sodium salt
    • Sodium mono-and dimethyl naphthalene sulfonate
    • 247-564-6
    • 977052-10-0
    • Sodium 2-methyl-1-naphthalenesulfonate
    • 26264-58-4
    • sodium;2-methylnaphthalene-1-sulfonate
    • 1A0PLS266R
    • 118218-23-8
    • 1-Naphthalenesulfonic acid, 2-methyl-, sodium salt (1:1)
    • UNII-1A0PLS266R
    • SCHEMBL339169
    • SCHEMBL29446139
    • sodium methylnaphthalene sulfonate
    • DTXSID50904100
    • GCNLRNBDDUYJMP-UHFFFAOYSA-M
    • NS00084335
    • SODIUM 2-METHYLNAPHTHALENE-1-SULFONATE
    • Q27252145
    • 26264-58-4

  • Applications

    Sodium methylnaphthalenesulfonate is primarily used as an anionic surfactant and pigment dispersant in industrial formulations. In coatings and inks, it helps stabilize pigment suspensions and improve wetting and flow, supporting uniform color and gloss. It is also employed in cleaning and household formulations as a wetting and emulsifying agent, aiding soil removal and formulation stability. In polymer processing and plastics, it can act as a dispersant and processing aid to improve filler dispersion and processability. In cosmetics and personal care, it may serve as a surfactant or solubilizer for fragrances and active ingredients. Additionally, it may be encountered as an intermediate or formulation aid in agrochemical products to improve spray wetting and dispersion. Use and handling are subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 41.86
    methanol 49.19
    isopropanol 28.51
    water 0.5
    ethyl acetate 41.24
    n-propanol 30.05
    acetone 113.21
    n-butanol 29.97
    acetonitrile 57.63
    DMF 461.48
    toluene 32.99
    isobutanol 18.1
    1,4-dioxane 105.81
    methyl acetate 54.85
    THF 162.45
    2-butanone 78.89
    n-pentanol 22.82
    sec-butanol 23.26
    n-hexane 1.68
    ethylene glycol 24.24
    NMP 221.83
    cyclohexane 5.1
    DMSO 216.33
    n-butyl acetate 40.69
    n-octanol 29.17
    chloroform 91.68
    n-propyl acetate 32.14
    acetic acid 30.14
    dichloromethane 106.44
    cyclohexanone 125.9
    propylene glycol 16.64
    isopropyl acetate 31.44
    DMAc 181.05
    2-ethoxyethanol 48.93
    isopentanol 20.24
    n-heptane 4.29
    ethyl formate 51.08
    1,2-dichloroethane 109.16
    n-hexanol 37.49
    2-methoxyethanol 112.58
    isobutyl acetate 18.2
    tetrachloromethane 13.05
    n-pentyl acetate 47.63
    transcutol 78.38
    n-heptanol 29.83
    ethylbenzene 17.35
    MIBK 38.81
    2-propoxyethanol 86.11
    tert-butanol 29.92
    MTBE 18.6
    2-butoxyethanol 51.86
    propionic acid 27.72
    o-xylene 22.2
    formic acid 22.07
    diethyl ether 29.79
    m-xylene 23.38
    p-xylene 20.63
    chlorobenzene 54.02
    dimethyl carbonate 47.61
    n-octane 3.94
    formamide 73.04
    cyclopentanone 175.2
    2-pentanone 68.93
    anisole 43.48
    cyclopentyl methyl ether 43.16
    gamma-butyrolactone 158.9
    1-methoxy-2-propanol 74.66
    pyridine 110.2
    3-pentanone 51.45
    furfural 161.48
    n-dodecane 4.06
    diethylene glycol 76.79
    diisopropyl ether 8.94
    tert-amyl alcohol 22.19
    acetylacetone 104.52
    n-hexadecane 4.68
    acetophenone 53.03
    methyl propionate 49.32
    isopentyl acetate 32.21
    trichloroethylene 163.88
    n-nonanol 28.41
    cyclohexanol 28.75
    benzyl alcohol 41.08
    2-ethylhexanol 20.57
    isooctanol 19.15
    dipropyl ether 24.12
    1,2-dichlorobenzene 56.32
    ethyl lactate 28.61
    propylene carbonate 71.13
    n-methylformamide 150.31
    2-pentanol 17.13
    n-pentane 2.46
    1-propoxy-2-propanol 49.81
    1-methoxy-2-propyl acetate 53.11
    2-(2-methoxypropoxy) propanol 42.36
    mesitylene 15.89
    ε-caprolactone 80.11
    p-cymene 17.0
    epichlorohydrin 167.37
    1,1,1-trichloroethane 52.12
    2-aminoethanol 31.86
    morpholine-4-carbaldehyde 193.8
    sulfolane 193.32
    2,2,4-trimethylpentane 1.18
    2-methyltetrahydrofuran 62.27
    n-hexyl acetate 53.99
    isooctane 1.19
    2-(2-butoxyethoxy)ethanol 57.62
    sec-butyl acetate 19.68
    tert-butyl acetate 35.27
    decalin 3.07
    glycerin 36.43
    diglyme 96.68
    acrylic acid 32.91
    isopropyl myristate 27.12
    n-butyric acid 34.71
    acetyl acetate 38.34
    di(2-ethylhexyl) phthalate 27.05
    ethyl propionate 29.75
    nitromethane 110.91
    1,2-diethoxyethane 43.64
    benzonitrile 67.69
    trioctyl phosphate 23.4
    1-bromopropane 35.7
    gamma-valerolactone 212.13
    n-decanol 23.43
    triethyl phosphate 21.17
    4-methyl-2-pentanol 10.66
    propionitrile 49.68
    vinylene carbonate 77.73
    1,1,2-trichlorotrifluoroethane 86.79
    DMS 47.1
    cumene 11.67
    2-octanol 23.92
    2-hexanone 46.94
    octyl acetate 35.91
    limonene 20.49
    1,2-dimethoxyethane 102.45
    ethyl orthosilicate 18.12
    tributyl phosphate 23.77
    diacetone alcohol 56.37
    N,N-dimethylaniline 31.22
    acrylonitrile 94.38
    aniline 39.52
    1,3-propanediol 49.84
    bromobenzene 51.07
    dibromomethane 66.16
    1,1,2,2-tetrachloroethane 111.65
    2-methyl-cyclohexyl acetate 30.64
    tetrabutyl urea 44.89
    diisobutyl methanol 14.22
    2-phenylethanol 55.95
    styrene 20.68
    dioctyl adipate 34.12
    dimethyl sulfate 77.56
    ethyl butyrate 31.72
    methyl lactate 48.15
    butyl lactate 39.84
    diethyl carbonate 23.37
    propanediol butyl ether 46.59
    triethyl orthoformate 22.74
    p-tert-butyltoluene 16.27
    methyl 4-tert-butylbenzoate 57.07
    morpholine 105.39
    tert-butylamine 14.99
    n-dodecanol 18.8
    dimethoxymethane 139.6
    ethylene carbonate 56.58
    cyrene 59.9
    2-ethoxyethyl acetate 57.49
    2-ethylhexyl acetate 26.89
    1,2,4-trichlorobenzene 56.53
    4-methylpyridine 85.7
    dibutyl ether 24.97
    2,6-dimethyl-4-heptanol 14.22
    DEF 94.84
    dimethyl isosorbide 85.06
    tetrachloroethylene 73.37
    eugenol 68.82
    triacetin 47.15
    span 80 42.68
    1,4-butanediol 21.36
    1,1-dichloroethane 57.77
    2-methyl-1-pentanol 16.46
    methyl formate 108.86
    2-methyl-1-butanol 17.77
    n-decane 5.73
    butyronitrile 49.04
    3,7-dimethyl-1-octanol 20.92
    1-chlorooctane 22.44
    1-chlorotetradecane 11.61
    n-nonane 5.04
    undecane 4.78
    tert-butylcyclohexane 2.17
    cyclooctane 2.17
    cyclopentanol 37.63
    tetrahydropyran 59.26
    tert-amyl methyl ether 17.12
    2,5,8-trioxanonane 75.36
    1-hexene 8.56
    2-isopropoxyethanol 30.94
    2,2,2-trifluoroethanol 19.81
    methyl butyrate 42.33

    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