Benzophenone-9

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  • Identifiers

    CAS number
    76656-36-5

    Molecular formula
    C15H12Na2O11S2

    SMILES
    COC1=C(C=C(C(=C1)O)C(=O)C2=CC(=C(C=C2O)OC)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 82.36%
    Bitter 18.46%
    Burnt 16.43%
    Savory 16.36%
    Cooked 15.45%
    Milky 14.36%
    Sweet 14.15%
    Clean 14.06%
    Roasted 13.77%
    Cooling 13.02%

     

    Flavor
    Bitter 88.19%
    Odorless 34.47%
    Bland 23.99%
    Nitrile 19.72%
    Sweet-like 18.51%
    Cedarleaf 18.41%
    Lovage 18.12%
    Taco 18.04%
    Bread crust 18.04%
    Very strong 17.84%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    1.52 (strong acid)

    Molecular weight
    478.4 g/mol

    Flash point

    • 301.15 ˚C est.

  • Synonyms

    • Benzophenone-9
    • 76656-36-5
    • Benzophenone 9
    • Uvinuc ds 49
    • Uvinul 3048
    • Disodium 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone
    • UNII-7925W14T4L
    • EINECS 278-520-4
    • 7925W14T4L
    • 2,2'-Dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone, disodium salt
    • Benzenesulfonic acid, 3,3'-carbonylbis(4-hydroxy-6-methoxy-, disodium salt
    • Disodium 3,3'-carbonylbis(4-hydroxy-6-methoxybenzenesulphonate)
    • Disodium 3,3'-carbonylbis[4-hydroxy-6-methoxybenzenesulphonate]
    • 2,2'-dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonic acid sodium salt
    • Benzenesulfonic acid, 3,3'-carbonylbis[4-hydroxy-6-methoxy-, disodium salt
    • RefChem:118532
    • BENZOPHENONE-9 [INCI]
    • 3121-60-6
    • EINECS 221-498-8
    • NSC 76059
    • Sodium 2,2'-dihydroxy-4,4'-dimethoxy-5-sulfobenzophenone
    • UVINUL DS 49
    • 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonic acid disodium salt
    • disodium;4-hydroxy-5-(2-hydroxy-4-methoxy-5-sulfonatobenzoyl)-2-methoxybenzenesulfonate
    • Benzenesulfonic acid, 3,3'-carbonylbis[4-hydroxy-6-methoxy-, disodiumsalt
    • MFCD02683831
    • 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulphonic acid sodium salt
    • Benzenesulfonic acid, 3,3'-carbonylbis(4-hydroxy-6-methoxy-, sodium salt (1:2)
    • 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonic Acid Disodium Salt, (Technical Grade)
    • Uvinul DS 49; Uvinul 3048; Benzophenone 9
    • benzophenone9
    • 2,2'-DIHYDROXY-4,4'-DIMETHOXY BENZOPHENONE-5,5'-DISODIUM SULFONATE
    • SCHEMBL240880
    • SCHEMBL29906996
    • MSK3413
    • MSK3413-100AW
    • Benzophenone-9, analytical standard
    • MSK3413-1000AW
    • AKOS015889564
    • disodium,4-hydroxy-5-(2-hydroxy-4-methoxy-5-sulfonatobenzoyl)-2-methoxybenzenesulfonate
    • AS-16084
    • FD153141
    • NS00013401
    • NS00089314
    • G84015
    • Q27266708
    • Benzophenone-9 Solution in Acetonitrile/Water, 100ug/mL
    • Benzophenone-9 Solution in Acetonitrile/Water, 1000ug/mL
    • sodium 5,5'-carbonylbis(4-hydroxy-2-methoxybenzenesulfonate)
    • 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disodiumsulfonate
    • 2,2'-Dihydroxy-4,4'-dimethoxy-benzophenone-5,5'-disulfonic acid disodium salt
    • 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disodium sulfonate disodium salt
    • 3121-60-6

  • Applications

    Benzophenone-9 (CAS 76656-36-5) is used as a UV absorber/stabilizer in polymers and plastics to prevent UV-driven degradation and extend product life; in coatings and inks, it helps improve optical stability and color retention; in adhesives, it contributes to UV resistance of the adhesive system; in electronics-related applications, it is evaluated for use in UV-curable coatings and encapsulants to protect sensitive components; it can also serve as an organic synthesis intermediate depending on the process and formulation requirements, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 8.73
    methanol 15.8
    isopropanol 2.51
    water 0.1
    ethyl acetate 6.91
    n-propanol 4.67
    acetone 21.79
    n-butanol 1.9
    acetonitrile 10.53
    DMF 151.57
    toluene 0.75
    isobutanol 1.29
    1,4-dioxane 11.77
    methyl acetate 11.16
    THF 49.55
    2-butanone 15.0
    n-pentanol 0.9
    sec-butanol 1.74
    n-hexane 0.05
    ethylene glycol 8.77
    NMP 178.8
    cyclohexane 0.13
    DMSO 195.18
    n-butyl acetate 3.2
    n-octanol 0.64
    chloroform 2.73
    n-propyl acetate 4.17
    acetic acid 12.19
    dichloromethane 4.87
    cyclohexanone 13.21
    propylene glycol 6.74
    isopropyl acetate 2.62
    DMAc 110.36
    2-ethoxyethanol 14.89
    isopentanol 0.75
    n-heptane 0.1
    ethyl formate 7.94
    1,2-dichloroethane 4.7
    n-hexanol 0.7
    2-methoxyethanol 47.94
    isobutyl acetate 0.9
    tetrachloromethane 0.2
    n-pentyl acetate 1.7
    transcutol 11.51
    n-heptanol 0.69
    ethylbenzene 0.31
    MIBK 2.23
    2-propoxyethanol 16.97
    tert-butanol 1.61
    MTBE 0.91
    2-butoxyethanol 5.05
    propionic acid 7.38
    o-xylene 0.48
    formic acid 27.29
    diethyl ether 3.26
    m-xylene 0.39
    p-xylene 0.38
    chlorobenzene 0.83
    dimethyl carbonate 14.7
    n-octane 0.05
    formamide 63.59
    cyclopentanone 44.89
    2-pentanone 7.55
    anisole 2.28
    cyclopentyl methyl ether 5.4
    gamma-butyrolactone 66.96
    1-methoxy-2-propanol 25.17
    pyridine 14.61
    3-pentanone 7.06
    furfural 40.06
    n-dodecane 0.04
    diethylene glycol 20.02
    diisopropyl ether 0.32
    tert-amyl alcohol 1.26
    acetylacetone 14.67
    n-hexadecane 0.05
    acetophenone 4.04
    methyl propionate 14.27
    isopentyl acetate 1.47
    trichloroethylene 8.29
    n-nonanol 0.68
    cyclohexanol 1.13
    benzyl alcohol 2.15
    2-ethylhexanol 0.47
    isooctanol 0.39
    dipropyl ether 2.57
    1,2-dichlorobenzene 0.92
    ethyl lactate 6.04
    propylene carbonate 13.25
    n-methylformamide 64.53
    2-pentanol 0.8
    n-pentane 0.07
    1-propoxy-2-propanol 8.99
    1-methoxy-2-propyl acetate 8.21
    2-(2-methoxypropoxy) propanol 6.15
    mesitylene 0.2
    ε-caprolactone 11.45
    p-cymene 0.3
    epichlorohydrin 37.48
    1,1,1-trichloroethane 1.06
    2-aminoethanol 9.89
    morpholine-4-carbaldehyde 72.78
    sulfolane 113.76
    2,2,4-trimethylpentane 0.02
    2-methyltetrahydrofuran 8.79
    n-hexyl acetate 1.65
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 6.58
    sec-butyl acetate 1.44
    tert-butyl acetate 2.24
    decalin 0.04
    glycerin 20.93
    diglyme 15.65
    acrylic acid 11.07
    isopropyl myristate 0.72
    n-butyric acid 4.8
    acetyl acetate 3.94
    di(2-ethylhexyl) phthalate 1.09
    ethyl propionate 5.08
    nitromethane 67.61
    1,2-diethoxyethane 3.67
    benzonitrile 2.46
    trioctyl phosphate 0.87
    1-bromopropane 1.39
    gamma-valerolactone 64.96
    n-decanol 0.51
    triethyl phosphate 2.06
    4-methyl-2-pentanol 0.31
    propionitrile 6.08
    vinylene carbonate 11.76
    1,1,2-trichlorotrifluoroethane 26.79
    DMS 4.3
    cumene 0.16
    2-octanol 0.39
    2-hexanone 3.53
    octyl acetate 1.14
    limonene 0.43
    1,2-dimethoxyethane 23.99
    ethyl orthosilicate 1.51
    tributyl phosphate 1.03
    diacetone alcohol 6.97
    N,N-dimethylaniline 1.68
    acrylonitrile 14.17
    aniline 2.24
    1,3-propanediol 8.6
    bromobenzene 0.6
    dibromomethane 2.37
    1,1,2,2-tetrachloroethane 5.65
    2-methyl-cyclohexyl acetate 1.9
    tetrabutyl urea 2.58
    diisobutyl methanol 0.3
    2-phenylethanol 2.03
    styrene 0.44
    dioctyl adipate 1.82
    dimethyl sulfate 35.7
    ethyl butyrate 3.88
    methyl lactate 19.3
    butyl lactate 2.89
    diethyl carbonate 2.67
    propanediol butyl ether 3.67
    triethyl orthoformate 2.82
    p-tert-butyltoluene 0.29
    methyl 4-tert-butylbenzoate 3.83
    morpholine 20.96
    tert-butylamine 0.48
    n-dodecanol 0.36
    dimethoxymethane 46.64
    ethylene carbonate 7.51
    cyrene 16.6
    2-ethoxyethyl acetate 4.38
    2-ethylhexyl acetate 1.18
    1,2,4-trichlorobenzene 1.46
    4-methylpyridine 7.1
    dibutyl ether 0.86
    2,6-dimethyl-4-heptanol 0.3
    DEF 16.78
    dimethyl isosorbide 18.35
    tetrachloroethylene 2.85
    eugenol 4.47
    triacetin 4.31
    span 80 3.53
    1,4-butanediol 2.27
    1,1-dichloroethane 1.73
    2-methyl-1-pentanol 0.43
    methyl formate 42.45
    2-methyl-1-butanol 0.93
    n-decane 0.07
    butyronitrile 3.26
    3,7-dimethyl-1-octanol 0.38
    1-chlorooctane 0.27
    1-chlorotetradecane 0.11
    n-nonane 0.06
    undecane 0.05
    tert-butylcyclohexane 0.02
    cyclooctane 0.05
    cyclopentanol 3.37
    tetrahydropyran 5.4
    tert-amyl methyl ether 1.15
    2,5,8-trioxanonane 12.21
    1-hexene 0.25
    2-isopropoxyethanol 5.21
    2,2,2-trifluoroethanol 7.0
    methyl butyrate 6.48

    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