Dimethyl oxobenzo dioxasilane

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  • Identifiers

    CAS number
    17902-57-7

    Molecular formula
    C9H10O3Si

    SMILES
    C[Si]1(OC2=CC=CC=C2C(=O)O1)C

    Safety labels

  • Odor profile

    Fragrance
    Sweet 55.26%
    Herbal 41.16%
    Coumarinic 38.81%
    Phenolic 36.95%
    Floral 35.73%
    Spicy 32.22%
    Coconut 28.46%
    Hay 28.32%
    Powdery 28.03%
    Nutty 28.01%

     

    Flavor
    Sweet 63.64%
    Bitter 55.59%
    Herbal 51.34%
    Tobacco 41.93%
    Woody 33.57%
    Coumarin 31.28%
    Tonka 30.94%
    Minty 30.57%
    Floral 28.85%
    Powdery 28.19%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    8.72 (weak base)

    Molecular weight
    194.26 g/mol

    Flash point

    • 109.65 ˚C est.

  • Synonyms

    • Dimethyl oxobenzo dioxasilane
    • 17902-57-7
    • 4H-1,3,2-Benzodioxasilin-4-one, 2,2-dimethyl-
    • Pro-DSB (10/palmitate octyle)
    • 8I196F2UJ0
    • Benzoic acid, o-(hydroxydimethylsiloxy)-, delta-lactone
    • DTXSID10170763
    • BENZOIC ACID, O-(HYDROXYDIMETHYLSILOXY)-, .DELTA.-LACTONE
    • RefChem:588295
    • DTXCID1093254
    • DIMETHYL OXOBENZO DIOXASILANE [INCI]
    • UNII-8I196F2UJ0
    • 2,2-DIMETHYL-1,3,2-BENZODIOXASILIN-4-ONE
    • SCHEMBL288329
    • SCHEMBL29389664
    • PYIPVTMVCJRGJU-UHFFFAOYSA-N
    • NS00124562
    • 2,2-Dimethyl-2H,4H-1,3,2-benzodioxasilin-4-one
    • Q27270561
    • 17902-57-7

  • Applications

    Dimethyl oxobenzo dioxasilane (CAS 17902-57-7) is used in specialty materials as a reactive silicon-containing building block for polymer and resin formulations. It often serves as an intermediate for organosilicon synthesis and can act as a crosslinking agent or functional monomer in coatings, inks, and adhesives, including silicone-containing formulations for optics. In electronics, it may be employed as a precursor for silicone-based resins used in encapsulation and potting. It can also find use in niche cleaning formulations as a siloxane additive for surface performance. Its exact applications are formulation-dependent and subject to local regulations and limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 85.45
    methanol 130.82
    isopropanol 61.29
    water 3.8
    ethyl acetate 99.41
    n-propanol 64.44
    acetone 196.02
    n-butanol 54.54
    acetonitrile 118.24
    DMF 438.71
    toluene 53.31
    isobutanol 45.61
    1,4-dioxane 178.12
    methyl acetate 117.77
    THF 232.43
    2-butanone 123.79
    n-pentanol 48.64
    sec-butanol 50.96
    n-hexane 9.0
    ethylene glycol 61.83
    NMP 284.86
    cyclohexane 15.35
    DMSO 442.73
    n-butyl acetate 78.62
    n-octanol 63.83
    chloroform 222.68
    n-propyl acetate 82.31
    acetic acid 99.42
    dichloromethane 238.64
    cyclohexanone 185.73
    propylene glycol 54.57
    isopropyl acetate 63.64
    DMAc 298.52
    2-ethoxyethanol 99.19
    isopentanol 42.57
    n-heptane 12.93
    ethyl formate 103.62
    1,2-dichloroethane 138.09
    n-hexanol 69.98
    2-methoxyethanol 172.69
    isobutyl acetate 49.39
    tetrachloromethane 26.44
    n-pentyl acetate 71.49
    transcutol 159.88
    n-heptanol 51.73
    ethylbenzene 36.31
    MIBK 69.3
    2-propoxyethanol 157.78
    tert-butanol 61.8
    MTBE 42.59
    2-butoxyethanol 87.61
    propionic acid 89.8
    o-xylene 43.13
    formic acid 51.08
    diethyl ether 62.0
    m-xylene 46.94
    p-xylene 45.64
    chlorobenzene 89.79
    dimethyl carbonate 89.83
    n-octane 8.02
    formamide 97.78
    cyclopentanone 239.85
    2-pentanone 104.7
    anisole 90.91
    cyclopentyl methyl ether 91.37
    gamma-butyrolactone 256.39
    1-methoxy-2-propanol 140.24
    pyridine 144.44
    3-pentanone 92.32
    furfural 255.75
    n-dodecane 11.28
    diethylene glycol 157.75
    diisopropyl ether 24.26
    tert-amyl alcohol 48.49
    acetylacetone 167.51
    n-hexadecane 12.76
    acetophenone 100.88
    methyl propionate 113.19
    isopentyl acetate 61.96
    trichloroethylene 219.29
    n-nonanol 58.13
    cyclohexanol 63.26
    benzyl alcohol 75.87
    2-ethylhexanol 47.69
    isooctanol 40.59
    dipropyl ether 59.47
    1,2-dichlorobenzene 91.89
    ethyl lactate 74.4
    propylene carbonate 144.38
    n-methylformamide 174.98
    2-pentanol 39.98
    n-pentane 9.82
    1-propoxy-2-propanol 101.57
    1-methoxy-2-propyl acetate 101.85
    2-(2-methoxypropoxy) propanol 92.29
    mesitylene 34.66
    ε-caprolactone 154.24
    p-cymene 34.92
    epichlorohydrin 226.54
    1,1,1-trichloroethane 91.88
    2-aminoethanol 69.26
    morpholine-4-carbaldehyde 287.54
    sulfolane 340.44
    2,2,4-trimethylpentane 5.49
    2-methyltetrahydrofuran 113.21
    n-hexyl acetate 94.96
    isooctane 4.94
    2-(2-butoxyethoxy)ethanol 115.21
    sec-butyl acetate 51.0
    tert-butyl acetate 64.33
    decalin 11.06
    glycerin 95.68
    diglyme 192.72
    acrylic acid 95.87
    isopropyl myristate 53.69
    n-butyric acid 85.85
    acetyl acetate 84.36
    di(2-ethylhexyl) phthalate 55.56
    ethyl propionate 83.87
    nitromethane 219.03
    1,2-diethoxyethane 82.49
    benzonitrile 105.33
    trioctyl phosphate 46.67
    1-bromopropane 70.05
    gamma-valerolactone 284.51
    n-decanol 50.22
    triethyl phosphate 50.55
    4-methyl-2-pentanol 28.96
    propionitrile 87.95
    vinylene carbonate 155.01
    1,1,2-trichlorotrifluoroethane 167.15
    DMS 94.46
    cumene 29.96
    2-octanol 42.42
    2-hexanone 81.62
    octyl acetate 65.29
    limonene 43.02
    1,2-dimethoxyethane 198.21
    ethyl orthosilicate 44.79
    tributyl phosphate 52.04
    diacetone alcohol 88.82
    N,N-dimethylaniline 76.35
    acrylonitrile 127.44
    aniline 69.73
    1,3-propanediol 77.49
    bromobenzene 88.59
    dibromomethane 146.95
    1,1,2,2-tetrachloroethane 177.82
    2-methyl-cyclohexyl acetate 67.12
    tetrabutyl urea 78.44
    diisobutyl methanol 33.62
    2-phenylethanol 84.92
    styrene 45.15
    dioctyl adipate 69.25
    dimethyl sulfate 151.2
    ethyl butyrate 75.97
    methyl lactate 101.21
    butyl lactate 71.84
    diethyl carbonate 62.83
    propanediol butyl ether 90.91
    triethyl orthoformate 55.79
    p-tert-butyltoluene 32.94
    methyl 4-tert-butylbenzoate 92.61
    morpholine 150.56
    tert-butylamine 37.27
    n-dodecanol 43.59
    dimethoxymethane 224.53
    ethylene carbonate 124.61
    cyrene 117.77
    2-ethoxyethyl acetate 90.16
    2-ethylhexyl acetate 54.29
    1,2,4-trichlorobenzene 99.62
    4-methylpyridine 124.68
    dibutyl ether 54.69
    2,6-dimethyl-4-heptanol 33.62
    DEF 140.34
    dimethyl isosorbide 162.73
    tetrachloroethylene 107.72
    eugenol 105.24
    triacetin 92.19
    span 80 93.09
    1,4-butanediol 46.37
    1,1-dichloroethane 104.31
    2-methyl-1-pentanol 39.71
    methyl formate 166.33
    2-methyl-1-butanol 41.3
    n-decane 14.41
    butyronitrile 81.95
    3,7-dimethyl-1-octanol 54.22
    1-chlorooctane 48.3
    1-chlorotetradecane 27.34
    n-nonane 12.95
    undecane 12.53
    tert-butylcyclohexane 9.74
    cyclooctane 7.37
    cyclopentanol 80.42
    tetrahydropyran 107.81
    tert-amyl methyl ether 42.71
    2,5,8-trioxanonane 157.93
    1-hexene 27.16
    2-isopropoxyethanol 72.18
    2,2,2-trifluoroethanol 57.21
    methyl butyrate 105.5

    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