Disodium distyrylbiphenyl disulfonate, (E,E)-

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  • Identifiers

    CAS number
    56776-28-4

    Molecular formula
    C28H20Na2O6S2

    SMILES
    C1=CC=C(C(=C1)/C=C/C2=CC=C(C=C2)C3=CC=C(C=C3)/C=C/C4=CC=CC=C4S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 47.75%
    Balsamic 27.05%
    Fruity 26.29%
    Bitter 25.12%
    Green 21.91%
    Floral 20.61%
    Cooked 20.6%
    Honey 19.65%
    Spicy 19.56%
    Grape 18.47%

     

    Flavor
    Bitter 74.37%
    Odorless 23.13%
    Nitrile 22.71%
    Oriental 19.18%
    Very strong 18.99%
    Indole 18.85%
    Moth ball 18.75%
    Urine 18.52%
    Naphthelene 18.44%
    Tar 18.03%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    2.7 (strong acid)

    Molecular weight
    562.6 g/mol

    Flash point

    • 341.42 ˚C est.

  • Synonyms

    • 56776-28-4
    • F7992ZTU7Z
    • Disodium distyrylbiphenyl disulfonate, (E,E)-
    • UNII-F7992ZTU7Z
    • DISODIUM 4,4'-BIS(2-SULFOSTYRYL)BIPHENYL, (E,E)-
    • BENZENESULFONIC ACID, 2,2'-((1,1'-BIPHENYL)-4,4'-DIYLDI-(1E)-2,1-ETHENEDIYL)BIS-, SODIUM SALT (1:2)
    • RefChem:200672
    • 27344-41-8
    • Sodium 2,2'-([1,1'-biphenyl]-4,4'-diylbis(ethene-2,1-diyl))dibenzenesulfonate
    • Fluorescent brightener 351
    • Disodium 4,4'-Bis(2-sulfonatostyryl)biphenyl
    • MFCD00318874
    • 4,4'-Bis(2-sulfostyryl)biphenyl Disodium
    • Disodium 44'-Bis(2-sulfonatostyryl)biphenyl
    • Sodium 2,2'-((1E,1'E)-[1,1'-biphenyl]-4,4'-diylbis(ethene-2,1-diyl))dibenzenesulfonate
    • disodium;2-[(E)-2-[4-[4-[(E)-2-(2-sulfonatophenyl)ethenyl]phenyl]phenyl]ethenyl]benzenesulfonate
    • Calcofluor CG
    • 4,4'-Bis(2-sulfonatostyryl)biphenyl Disodium Salt
    • SCHEMBL15769461
    • PMPJQLCPEQFEJW-HPKCLRQXSA-L
    • DTXSID901352102
    • Tox21_301540
    • AKOS015856607
    • CS-W009601
    • FB18682
    • FD10632
    • MSK160896-100W
    • NCGC00255583-01
    • 4,4'-Bis(o-sulfostyryl)biphenyl disodium
    • AS-13917
    • (E,E)-disodium distyrylbiphenyl disulfonate
    • CAS-27344-41-8
    • disodium 4,4-bis(2-sulfonatostyryl)biphenyl
    • 4,4'-Bis(2-sodiosulfostyryl)biphenyl disodium
    • F986528
    • Q27277762
    • Fluorescent brightener 351 Solution in Water, 100ug/mL
    • 4 pound not4 inverted exclamation mark -Bis(2-sulfostyryl)biphenyl Disodium
    • 2,2'-([1,1'-Biphenyl]-4,4'-diyldi-2,1-ethenediyl)bisbenzenesulfonic acid sodium
    • Sodium 2,2'-([1,1'-biphenyl]-4,4'-diylbis-(ethene-2,1-diyl))dibenzenesulfonate
    • Sodium2,2'-([1,1'-biphenyl]-4,4'-diylbis(ethene-2,1-diyl))dibenzenesulfonate
    • 2,2a(2)-[[1,1a(2)-Biphenyl]-4,4a(2)-diyldi-(1E)-2,1-ethenediyl]bis-benzenesulfonic acid sodium salt
    • Benzenesulfonic acid, 2,2'-[[1,1'-biphenyl]-4,4'-diyldi(E)-2,1-ethenediyl]bis-, sodium salt (1:2)
    • disodium;2-[(E)-2-[4-[4-[(E)-2-(2-sulfonatophenyl)vinyl]phenyl]phenyl]vinyl]benzenesulfonate
    • 27344-41-8

  • Applications

    Disodium distyrylbiphenyl disulfonate, (E,E)- (CAS 56776-28-4) is a water-soluble fluorescent dye used primarily as an optical brightener in detergents, textiles, and paper, helping to enhance whiteness under UV light; it is also employed as a fluorescent colorant in inks and coatings and can function as a tracer or marker in analytical methods and quality control; in the plastics and polymer sectors it may be added as a dye additive or used as an intermediate in the synthesis of related sulfonated stilbene dyes; and it is sometimes evaluated for use as a dye/marker in other specialty applications.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 0.31
    methanol 0.29
    isopropanol 0.24
    water 0.0
    ethyl acetate 0.84
    n-propanol 0.43
    acetone 1.43
    n-butanol 0.34
    acetonitrile 0.31
    DMF 8.23
    toluene 0.85
    isobutanol 0.21
    1,4-dioxane 2.38
    methyl acetate 1.04
    THF 14.72
    2-butanone 2.99
    n-pentanol 0.23
    sec-butanol 0.48
    n-hexane 0.02
    ethylene glycol 0.06
    NMP 11.29
    cyclohexane 0.06
    DMSO 3.93
    n-butyl acetate 0.83
    n-octanol 0.17
    chloroform 3.88
    n-propyl acetate 0.63
    acetic acid 0.47
    dichloromethane 3.27
    cyclohexanone 4.25
    propylene glycol 0.21
    isopropyl acetate 0.76
    DMAc 14.73
    2-ethoxyethanol 0.86
    isopentanol 0.21
    n-heptane 0.04
    ethyl formate 0.59
    1,2-dichloroethane 1.65
    n-hexanol 0.2
    2-methoxyethanol 1.66
    isobutyl acetate 0.26
    tetrachloromethane 0.18
    n-pentyl acetate 0.78
    transcutol 2.41
    n-heptanol 0.18
    ethylbenzene 0.28
    MIBK 0.72
    2-propoxyethanol 1.34
    tert-butanol 0.24
    MTBE 0.72
    2-butoxyethanol 0.85
    propionic acid 0.54
    o-xylene 0.43
    formic acid 0.25
    diethyl ether 0.75
    m-xylene 0.34
    p-xylene 0.29
    chlorobenzene 0.69
    dimethyl carbonate 1.02
    n-octane 0.02
    formamide 0.71
    cyclopentanone 8.48
    2-pentanone 1.66
    anisole 0.98
    cyclopentyl methyl ether 2.01
    gamma-butyrolactone 5.88
    1-methoxy-2-propanol 1.78
    pyridine 3.77
    3-pentanone 1.64
    furfural 4.17
    n-dodecane 0.01
    diethylene glycol 0.48
    diisopropyl ether 0.16
    tert-amyl alcohol 0.43
    acetylacetone 2.23
    n-hexadecane 0.02
    acetophenone 1.21
    methyl propionate 1.37
    isopentyl acetate 0.64
    trichloroethylene 5.55
    n-nonanol 0.21
    cyclohexanol 0.44
    benzyl alcohol 0.56
    2-ethylhexanol 0.17
    isooctanol 0.15
    dipropyl ether 0.74
    1,2-dichlorobenzene 0.66
    ethyl lactate 0.5
    propylene carbonate 1.69
    n-methylformamide 1.56
    2-pentanol 0.25
    n-pentane 0.03
    1-propoxy-2-propanol 1.3
    1-methoxy-2-propyl acetate 1.77
    2-(2-methoxypropoxy) propanol 1.31
    mesitylene 0.17
    ε-caprolactone 3.17
    p-cymene 0.21
    epichlorohydrin 6.94
    1,1,1-trichloroethane 0.85
    2-aminoethanol 0.2
    morpholine-4-carbaldehyde 6.3
    sulfolane 9.87
    2,2,4-trimethylpentane 0.03
    2-methyltetrahydrofuran 3.54
    n-hexyl acetate 0.71
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 1.32
    sec-butyl acetate 0.49
    tert-butyl acetate 0.93
    decalin 0.02
    glycerin 0.42
    diglyme 3.03
    acrylic acid 0.57
    isopropyl myristate 0.36
    n-butyric acid 0.7
    acetyl acetate 0.56
    di(2-ethylhexyl) phthalate 0.35
    ethyl propionate 0.72
    nitromethane 1.66
    1,2-diethoxyethane 1.4
    benzonitrile 0.6
    trioctyl phosphate 0.23
    1-bromopropane 0.82
    gamma-valerolactone 9.72
    n-decanol 0.14
    triethyl phosphate 0.53
    4-methyl-2-pentanol 0.12
    propionitrile 0.5
    vinylene carbonate 1.53
    1,1,2-trichlorotrifluoroethane 3.8
    DMS 0.93
    cumene 0.13
    2-octanol 0.16
    2-hexanone 1.05
    octyl acetate 0.43
    limonene 0.36
    1,2-dimethoxyethane 2.61
    ethyl orthosilicate 0.51
    tributyl phosphate 0.29
    diacetone alcohol 1.3
    N,N-dimethylaniline 0.71
    acrylonitrile 0.83
    aniline 0.81
    1,3-propanediol 0.34
    bromobenzene 0.74
    dibromomethane 1.51
    1,1,2,2-tetrachloroethane 4.21
    2-methyl-cyclohexyl acetate 0.66
    tetrabutyl urea 0.73
    diisobutyl methanol 0.15
    2-phenylethanol 0.51
    styrene 0.34
    dioctyl adipate 0.66
    dimethyl sulfate 2.31
    ethyl butyrate 0.91
    methyl lactate 1.06
    butyl lactate 0.78
    diethyl carbonate 0.5
    propanediol butyl ether 0.56
    triethyl orthoformate 0.92
    p-tert-butyltoluene 0.22
    methyl 4-tert-butylbenzoate 1.25
    morpholine 3.66
    tert-butylamine 0.13
    n-dodecanol 0.1
    dimethoxymethane 3.47
    ethylene carbonate 0.94
    cyrene 1.73
    2-ethoxyethyl acetate 1.47
    2-ethylhexyl acetate 0.58
    1,2,4-trichlorobenzene 1.18
    4-methylpyridine 2.48
    dibutyl ether 0.47
    2,6-dimethyl-4-heptanol 0.15
    DEF 2.94
    dimethyl isosorbide 3.4
    tetrachloroethylene 1.79
    eugenol 1.09
    triacetin 1.04
    span 80 0.98
    1,4-butanediol 0.1
    1,1-dichloroethane 1.04
    2-methyl-1-pentanol 0.19
    methyl formate 1.04
    2-methyl-1-butanol 0.29
    n-decane 0.03
    butyronitrile 0.44
    3,7-dimethyl-1-octanol 0.18
    1-chlorooctane 0.16
    1-chlorotetradecane 0.06
    n-nonane 0.02
    undecane 0.02
    tert-butylcyclohexane 0.02
    cyclooctane 0.02
    cyclopentanol 0.78
    tetrahydropyran 2.46
    tert-amyl methyl ether 0.93
    2,5,8-trioxanonane 2.25
    1-hexene 0.13
    2-isopropoxyethanol 0.55
    2,2,2-trifluoroethanol 0.25
    methyl butyrate 0.99

    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