Oxobenzoxazinyl naphthalene sulfoanilide

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  • Identifiers

    CAS number
    10128-55-9

    Molecular formula
    C24H16N2O4S

    SMILES
    C1=CC=C2C=C(C=CC2=C1)S(=O)(=O)NC3=CC=CC=C3C4=NC5=CC=CC=C5C(=O)O4

    Safety labels

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Fruity 44.91%
    Odorless 44.39%
    Cooked 28.59%
    Grape 28.03%
    Bitter 25.19%
    Burnt 24.05%
    Savory 18.55%
    Meaty 18.23%
    Sulfurous 18.03%
    Musty 17.83%

     

    Flavor
    Bitter 93.31%
    Odorless 25.18%
    Nitrile 19.75%
    Very strong 18.56%
    Indole 18.31%
    Moth ball 18.16%
    Naphthelene 17.76%
    Cedarleaf 17.38%
    Lovage 17.32%
    Bread crust 17.29%

     

    Odor impact est.
    Odorless

  • Properties

    XLogP3-AA
    4.7

    pKa est.
    5.58 (weak acid)

    Molecular weight
    428.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    1360°C

    Flash point

    • 298.61 ˚C est.

  • Synonyms

    • 10128-55-9
    • oxobenzoxazinyl naphthalene sulfoanilide
    • N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide
    • 2-Naphthalenesulfonamide, N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-
    • EINECS 233-360-4
    • N-(2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl)-2-naphthalenesulfonamide
    • 19C742D53K
    • ORLUM WHITE 520T
    • DTXSID1064958
    • 2-Naphthalenesulfonamide, N-(2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl)-
    • N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide
    • 2-NAPHTHALENESULFONANILIDE, 2'-(4-OXO-4H-3,1-BENZOXAZIN-2-YL)-
    • N-(2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl)naphthalene-2-sulphonamide
    • RefChem:857772
    • DTXCID4032615
    • OXOBENZOXAZINYL NAPHTHALENE SULFOANILIDE [INCI]
    • 2-Naphthalenesulfonamide, N-2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl-
    • N-[2-(4-oxo-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulfonamide
    • N-(2-(4-Oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl)naphthalene-2-sulfonamide
    • N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulfonamide
    • MLS000553518
    • SMR000171409
    • Naphthalene-2-sulfonic acid [2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)-phenyl]-amide
    • N-[2-(4-oxo-4h-benzo[d][1,3]oxazin-2-yl)phenyl]naphthalene-2-sulfonamide
    • UNII-19C742D53K
    • C24H16N2O4S
    • Oprea1_553922
    • Oprea1_715446
    • cid_82379
    • SCHEMBL2314299
    • CHEMBL1507475
    • SCHEMBL30183217
    • BDBM56563
    • WLZ3524
    • HMS2535K09
    • MFCD00227163
    • AKOS000513768
    • CCG-103132
    • NCGC00245107-01
    • DB-058587
    • CS-0329890
    • EU-0033416
    • NS00019757
    • ST50227457
    • F14246
    • 128O559
    • AE-641/00127036
    • F728473
    • SR-01000389110
    • SR-01000389110-1
    • Q27252097
    • 2-{2-[(2-naphthylsulfonyl)amino]phenyl}benzo[d]1,3-oxazin-4-one
    • N-[2-(4-keto-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulfonamide
    • N-[2-(4-oxo-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide
    • N-[2-(4-oxidanylidene-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulfonamide
    • Luminor green 525 t,N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide
    • 10128-55-9

  • Applications

    Oxobenzoxazinyl naphthalene sulfoanilide (CAS 10128-55-9) is an organic compound primarily used as a UV absorber and light stabilizer in polymer and coating formulations, helping to improve weathering resistance of plastics, films, and coatings. It is commonly evaluated as an intermediate in the synthesis of dyes and pigments due to its sulfonic-containing aryl structure, and may be incorporated into waterborne coatings or inks as a water-dispersible stabilizer or performance additive. The sulfo group enables formulation in aqueous systems, potentially supporting applications in adhesives and specialty coatings where improved color stability and lightfastness are desired. Additionally, it may serve as a building block in industrial chemical syntheses for specialty chemicals and as a precursor in research programs aiming at UV-filter components. Its use is typically governed by local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 0.79
    methanol 0.9
    isopropanol 0.43
    water 0.0
    ethyl acetate 0.72
    n-propanol 0.86
    acetone 1.37
    n-butanol 0.68
    acetonitrile 0.43
    DMF 9.87
    toluene 0.47
    isobutanol 0.48
    1,4-dioxane 3.18
    methyl acetate 1.0
    THF 13.03
    2-butanone 2.98
    n-pentanol 0.57
    sec-butanol 0.66
    n-hexane 0.01
    ethylene glycol 0.34
    NMP 7.73
    cyclohexane 0.01
    DMSO 3.77
    n-butyl acetate 0.79
    n-octanol 0.38
    chloroform 0.72
    n-propyl acetate 0.73
    acetic acid 1.34
    dichloromethane 1.13
    cyclohexanone 4.18
    propylene glycol 0.62
    isopropyl acetate 0.67
    DMAc 12.97
    2-ethoxyethanol 2.23
    isopentanol 0.51
    n-heptane 0.02
    ethyl formate 0.89
    1,2-dichloroethane 0.94
    n-hexanol 0.43
    2-methoxyethanol 5.11
    isobutyl acetate 0.44
    tetrachloromethane 0.03
    n-pentyl acetate 1.27
    transcutol 7.66
    n-heptanol 0.5
    ethylbenzene 0.17
    MIBK 0.93
    2-propoxyethanol 3.07
    tert-butanol 0.28
    MTBE 0.32
    2-butoxyethanol 2.53
    propionic acid 1.13
    o-xylene 0.24
    formic acid 1.2
    diethyl ether 0.48
    m-xylene 0.2
    p-xylene 0.23
    chlorobenzene 0.47
    dimethyl carbonate 1.08
    n-octane 0.01
    formamide 2.46
    cyclopentanone 7.61
    2-pentanone 1.62
    anisole 0.7
    cyclopentyl methyl ether 1.25
    gamma-butyrolactone 5.9
    1-methoxy-2-propanol 3.51
    pyridine 5.36
    3-pentanone 1.18
    furfural 6.25
    n-dodecane 0.02
    diethylene glycol 2.22
    diisopropyl ether 0.1
    tert-amyl alcohol 0.43
    acetylacetone 2.34
    n-hexadecane 0.02
    acetophenone 1.34
    methyl propionate 1.21
    isopentyl acetate 0.81
    trichloroethylene 2.56
    n-nonanol 0.49
    cyclohexanol 0.59
    benzyl alcohol 1.24
    2-ethylhexanol 0.34
    isooctanol 0.42
    dipropyl ether 0.62
    1,2-dichlorobenzene 0.38
    ethyl lactate 0.89
    propylene carbonate 1.67
    n-methylformamide 2.82
    2-pentanol 0.37
    n-pentane 0.01
    1-propoxy-2-propanol 2.22
    1-methoxy-2-propyl acetate 2.05
    2-(2-methoxypropoxy) propanol 2.65
    mesitylene 0.1
    ε-caprolactone 3.04
    p-cymene 0.2
    epichlorohydrin 7.62
    1,1,1-trichloroethane 0.21
    2-aminoethanol 0.79
    morpholine-4-carbaldehyde 9.22
    sulfolane 7.38
    2,2,4-trimethylpentane 0.01
    2-methyltetrahydrofuran 2.38
    n-hexyl acetate 1.12
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 3.57
    sec-butyl acetate 0.54
    tert-butyl acetate 0.69
    decalin 0.01
    glycerin 1.72
    diglyme 6.36
    acrylic acid 1.57
    isopropyl myristate 0.59
    n-butyric acid 1.3
    acetyl acetate 0.53
    di(2-ethylhexyl) phthalate 0.88
    ethyl propionate 0.64
    nitromethane 2.75
    1,2-diethoxyethane 2.09
    benzonitrile 1.14
    trioctyl phosphate 0.5
    1-bromopropane 0.33
    gamma-valerolactone 12.69
    n-decanol 0.37
    triethyl phosphate 0.53
    4-methyl-2-pentanol 0.21
    propionitrile 0.67
    vinylene carbonate 1.9
    1,1,2-trichlorotrifluoroethane 5.26
    DMS 1.25
    cumene 0.11
    2-octanol 0.34
    2-hexanone 1.27
    octyl acetate 0.75
    limonene 0.24
    1,2-dimethoxyethane 3.66
    ethyl orthosilicate 0.52
    tributyl phosphate 0.6
    diacetone alcohol 1.83
    N,N-dimethylaniline 0.56
    acrylonitrile 1.38
    aniline 1.14
    1,3-propanediol 1.44
    bromobenzene 0.35
    dibromomethane 0.41
    1,1,2,2-tetrachloroethane 1.71
    2-methyl-cyclohexyl acetate 0.75
    tetrabutyl urea 1.3
    diisobutyl methanol 0.24
    2-phenylethanol 1.25
    styrene 0.22
    dioctyl adipate 1.12
    dimethyl sulfate 1.9
    ethyl butyrate 0.79
    methyl lactate 1.78
    butyl lactate 1.74
    diethyl carbonate 0.52
    propanediol butyl ether 2.09
    triethyl orthoformate 0.86
    p-tert-butyltoluene 0.18
    methyl 4-tert-butylbenzoate 2.12
    morpholine 4.75
    tert-butylamine 0.11
    n-dodecanol 0.27
    dimethoxymethane 4.2
    ethylene carbonate 1.16
    cyrene 3.09
    2-ethoxyethyl acetate 2.63
    2-ethylhexyl acetate 0.63
    1,2,4-trichlorobenzene 0.71
    4-methylpyridine 2.63
    dibutyl ether 0.63
    2,6-dimethyl-4-heptanol 0.24
    DEF 2.73
    dimethyl isosorbide 5.07
    tetrachloroethylene 0.92
    eugenol 2.5
    triacetin 1.72
    span 80 2.28
    1,4-butanediol 0.44
    1,1-dichloroethane 0.35
    2-methyl-1-pentanol 0.54
    methyl formate 2.04
    2-methyl-1-butanol 0.6
    n-decane 0.03
    butyronitrile 0.64
    3,7-dimethyl-1-octanol 0.41
    1-chlorooctane 0.18
    1-chlorotetradecane 0.09
    n-nonane 0.02
    undecane 0.03
    tert-butylcyclohexane 0.01
    cyclooctane 0.01
    cyclopentanol 0.99
    tetrahydropyran 1.74
    tert-amyl methyl ether 0.42
    2,5,8-trioxanonane 4.61
    1-hexene 0.08
    2-isopropoxyethanol 1.33
    2,2,2-trifluoroethanol 0.49
    methyl butyrate 0.95

    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