Styrenesulfonic acid

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  • Identifiers

    CAS number
    26914-43-2

    Molecular formula
    C8H8O3S

    SMILES
    C=CC1=CC=CC=C1S(=O)(=O)O

    Safety labels

  • Odor profile

    Fragrance
    Odorless 72.41%
    Bitter 26.18%
    Burnt 23.58%
    Pungent 23.09%
    Cooked 21.5%
    Sulfurous 20.01%
    Roasted 19.78%
    Aromatic 17.14%
    Sharp 16.46%
    Savory 16.06%

     

    Flavor
    Bitter 69.84%
    Odorless 28.16%
    Nitrile 23.14%
    Urine 20.33%
    Bread crust 19.91%
    Almond shell 19.65%
    Taco 19.6%
    Formyl 19.49%
    Very strong 19.42%
    Gooseberry 19.3%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.4

    pKa est.
    7.82 (neutral)

    Molecular weight
    184.21 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    320°C

    Flash point

    • 139.62 ˚C est.

  • Synonyms

    • Styrenesulfonic Acid
    • vinylbenzenesulfonic acid
    • 26914-43-2
    • EINECS 248-104-7
    • UHW48O2R88
    • Benzenesulfonic acid, ethenyl-
    • RefChem:889383
    • DTXSID60909580
    • DTXCID801529043
    • 2-styrenesulfonic acid
    • 2-ethenylbenzenesulfonic acid
    • Benzenesulfonic acid, 2-ethenyl-
    • NR134FJ5E3
    • 90111-29-8
    • Vinylbenzenesulphonic acid
    • 50851-57-5
    • UNII-NR134FJ5E3
    • UNII-UHW48O2R88
    • styrene-2-sulfonic acid
    • styrene-2-sulphonic acid
    • vinylbenzene sulfonic acid
    • SCHEMBL15000
    • SCHEMBL8717785
    • SCHEMBL8960457
    • SCHEMBL8960462
    • SCHEMBL10594900
    • SCHEMBL29361804
    • 2-Ethenylbenzene-1-sulfonic acid
    • DTXSID90865327
    • NS00050893
    • Q27285002
    • 26914-43-2

  • Applications

    Styrenesulfonic acid (CAS 26914-43-2) is used mainly as a functional monomer to synthesize sulfonic polymers, enabling strong ion-exchange resins and proton-conducting membranes for fuel cells and electrochemical devices; it can also serve as a precursor to introduce sulfonic groups into polymers to produce water-dispersible coatings and inks or to enhance ion transport in coatings; with its strong sulfonic acid group, it may function as a Brønsted acid catalyst in certain organic reactions such as esterifications and acylations; overall, sulfonic polymers derived from styrenesulfonic acid have applications in water treatment, electrochemistry, and membrane technologies.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 81.35
    methanol 112.26
    isopropanol 43.46
    water 1.26
    ethyl acetate 67.44
    n-propanol 44.55
    acetone 197.18
    n-butanol 39.1
    acetonitrile 74.11
    DMF 796.14
    toluene 34.7
    isobutanol 21.61
    1,4-dioxane 153.37
    methyl acetate 71.61
    THF 345.68
    2-butanone 120.66
    n-pentanol 26.78
    sec-butanol 34.45
    n-hexane 2.05
    ethylene glycol 45.0
    NMP 284.33
    cyclohexane 2.78
    DMSO 541.04
    n-butyl acetate 44.01
    n-octanol 41.73
    chloroform 33.7
    n-propyl acetate 37.11
    acetic acid 34.05
    dichloromethane 33.5
    cyclohexanone 151.06
    propylene glycol 30.12
    isopropyl acetate 48.44
    DMAc 318.31
    2-ethoxyethanol 85.15
    isopentanol 25.89
    n-heptane 3.49
    ethyl formate 50.66
    1,2-dichloroethane 56.13
    n-hexanol 47.75
    2-methoxyethanol 219.08
    isobutyl acetate 17.77
    tetrachloromethane 7.0
    n-pentyl acetate 46.72
    transcutol 122.59
    n-heptanol 35.88
    ethylbenzene 17.07
    MIBK 63.15
    2-propoxyethanol 123.38
    tert-butanol 45.85
    MTBE 33.98
    2-butoxyethanol 71.51
    propionic acid 32.43
    o-xylene 23.81
    formic acid 37.12
    diethyl ether 57.33
    m-xylene 27.17
    p-xylene 16.39
    chlorobenzene 34.99
    dimethyl carbonate 62.6
    n-octane 2.84
    formamide 89.83
    cyclopentanone 267.9
    2-pentanone 113.94
    anisole 52.32
    cyclopentyl methyl ether 90.31
    gamma-butyrolactone 207.55
    1-methoxy-2-propanol 153.06
    pyridine 99.05
    3-pentanone 86.27
    furfural 158.75
    n-dodecane 3.3
    diethylene glycol 118.94
    diisopropyl ether 16.31
    tert-amyl alcohol 35.97
    acetylacetone 152.83
    n-hexadecane 3.87
    acetophenone 53.32
    methyl propionate 78.97
    isopentyl acetate 34.4
    trichloroethylene 78.65
    n-nonanol 38.38
    cyclohexanol 34.67
    benzyl alcohol 39.07
    2-ethylhexanol 25.32
    isooctanol 23.85
    dipropyl ether 30.49
    1,2-dichlorobenzene 32.53
    ethyl lactate 34.6
    propylene carbonate 66.39
    n-methylformamide 189.23
    2-pentanol 27.6
    n-pentane 2.61
    1-propoxy-2-propanol 75.1
    1-methoxy-2-propyl acetate 69.61
    2-(2-methoxypropoxy) propanol 62.03
    mesitylene 19.1
    ε-caprolactone 83.32
    p-cymene 16.91
    epichlorohydrin 182.53
    1,1,1-trichloroethane 30.95
    2-aminoethanol 54.68
    morpholine-4-carbaldehyde 232.35
    sulfolane 290.21
    2,2,4-trimethylpentane 1.76
    2-methyltetrahydrofuran 103.42
    n-hexyl acetate 60.95
    isooctane 1.82
    2-(2-butoxyethoxy)ethanol 86.14
    sec-butyl acetate 24.96
    tert-butyl acetate 57.61
    decalin 3.06
    glycerin 67.01
    diglyme 132.43
    acrylic acid 34.61
    isopropyl myristate 30.39
    n-butyric acid 42.98
    acetyl acetate 39.25
    di(2-ethylhexyl) phthalate 24.96
    ethyl propionate 41.78
    nitromethane 128.19
    1,2-diethoxyethane 48.47
    benzonitrile 48.5
    trioctyl phosphate 24.69
    1-bromopropane 27.01
    gamma-valerolactone 247.59
    n-decanol 30.5
    triethyl phosphate 21.94
    4-methyl-2-pentanol 17.29
    propionitrile 52.58
    vinylene carbonate 57.99
    1,1,2-trichlorotrifluoroethane 94.47
    DMS 45.17
    cumene 12.38
    2-octanol 29.17
    2-hexanone 54.61
    octyl acetate 40.14
    limonene 22.06
    1,2-dimethoxyethane 136.81
    ethyl orthosilicate 19.85
    tributyl phosphate 23.28
    diacetone alcohol 90.98
    N,N-dimethylaniline 38.92
    acrylonitrile 84.42
    aniline 44.93
    1,3-propanediol 74.49
    bromobenzene 30.02
    dibromomethane 25.81
    1,1,2,2-tetrachloroethane 64.31
    2-methyl-cyclohexyl acetate 32.07
    tetrabutyl urea 42.33
    diisobutyl methanol 17.82
    2-phenylethanol 57.14
    styrene 20.64
    dioctyl adipate 33.23
    dimethyl sulfate 116.26
    ethyl butyrate 35.3
    methyl lactate 74.22
    butyl lactate 42.32
    diethyl carbonate 21.54
    propanediol butyl ether 64.83
    triethyl orthoformate 24.36
    p-tert-butyltoluene 17.66
    methyl 4-tert-butylbenzoate 62.62
    morpholine 158.43
    tert-butylamine 23.08
    n-dodecanol 23.49
    dimethoxymethane 290.88
    ethylene carbonate 45.51
    cyrene 63.94
    2-ethoxyethyl acetate 57.53
    2-ethylhexyl acetate 28.34
    1,2,4-trichlorobenzene 36.42
    4-methylpyridine 85.66
    dibutyl ether 29.07
    2,6-dimethyl-4-heptanol 17.82
    DEF 136.23
    dimethyl isosorbide 101.11
    tetrachloroethylene 43.04
    eugenol 70.24
    triacetin 43.2
    span 80 51.94
    1,4-butanediol 27.36
    1,1-dichloroethane 34.57
    2-methyl-1-pentanol 18.7
    methyl formate 136.84
    2-methyl-1-butanol 22.5
    n-decane 4.83
    butyronitrile 51.78
    3,7-dimethyl-1-octanol 28.14
    1-chlorooctane 23.02
    1-chlorotetradecane 10.82
    n-nonane 4.22
    undecane 3.96
    tert-butylcyclohexane 2.67
    cyclooctane 1.77
    cyclopentanol 50.22
    tetrahydropyran 87.48
    tert-amyl methyl ether 32.79
    2,5,8-trioxanonane 102.14
    1-hexene 11.12
    2-isopropoxyethanol 47.23
    2,2,2-trifluoroethanol 21.58
    methyl butyrate 50.83

    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