Vinyltrimethoxysilane

Overview IFRA Request a quote

  • Identifiers

    CAS number
    2768-02-7

    Molecular formula
    C5H12O3Si

    SMILES
    CO[Si](C=C)(OC)OC

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Ethereal 43.95%
    Fruity 39.64%
    Fresh 36.87%
    Odorless 33.76%
    Pungent 30.01%
    Sharp 29.95%
    Sweet 27.2%
    Alcoholic 21.27%
    Earthy 21.13%
    Green 20.17%

     

    Flavor
    Fruity 54.92%
    Green 39.38%
    Bitter 37.83%
    Nutty 28.16%
    Sweet 27.03%
    Floral 26.37%
    Musty 25.42%
    Sharp 25.12%
    Earthy 24.8%
    Tropical 24.57%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    10.9 (weak base)

    Molecular weight
    148.23 g/mol

    Melting point expt.

    • −97°C

    Boiling point

    • 123°C at 1013 hPa (converted to 101.3 kPa) (760 mm Hg)

    Flash point

    • 25.23 ˚C est.
    • 25.5°C

    Solubility expt.

    • Water Solubility: 1,000,000 mg/L at 20°C (modeled data).

  • Synonyms

    • Vinyltrimethoxysilane
    • 2768-02-7
    • Trimethoxyvinylsilane
    • Silane, ethenyltrimethoxy-
    • Ethenyltrimethoxysilane
    • (Trimethoxysilyl)ethene
    • Silane, trimethoxyvinyl-
    • Vinyl trimethoxy silane
    • 0ZIU135UES
    • A 171 (Silane derivative)
    • DTXSID2029240
    • DYNASYLAN SILFIN
    • KBM 1003
    • SZ 6300
    • DTXCID509240
    • A 171
    • V 4917
    • Y 4302
    • RefChem:901966
    • 220-449-8
    • Trimethoxy(vinyl)silane
    • (Trimethoxysilyl)ethylene
    • ethenyl(trimethoxy)silane
    • MFCD00008605
    • VTMO
    • VTS-M
    • C5H12O3Si
    • Dynasylan VTMO
    • EINECS 220-449-8
    • vinyl trimethoxysilane
    • vinyltrimethoxy-silane
    • BRN 1099136
    • vinyl-trimethoxy-silane
    • ethenyl-trimethoxysilane
    • Tedizolidted Impurity 4
    • Union Carbide A-171
    • Ethenyltri(methoxy)silane
    • UNII-0ZIU135UES
    • (CH3O)3SiCH=CH2
    • CH2=CHSi(OCH3)3
    • Vinyltrimethoxysilane, 97%
    • Vinyltrimethoxysilane, 98%
    • SCHEMBL22614
    • SCHEMBL3232608
    • SCHEMBL3421473
    • SCHEMBL18427889
    • NKSJNEHGWDZZQF-UHFFFAOYSA-
    • ISI2650
    • CG-171 VTMO Vinyltrimethoxysilane
    • Tox21_202575
    • MSK169817
    • AKOS008901344
    • CV-4917
    • s22025
    • NCGC00260124-01
    • AS-17409
    • CAS-2768-02-7
    • NS00049806
    • V0042
    • E75732
    • EC 220-449-8
    • EN300-7405193
    • (Trimethoxysilyl)ethylene, Ethenyltrimethoxysilane
    • Trimethoxyvinylsilane 100 microg/mL in Acetonitrile
    • Q27251076
    • InChI=1/C5H12O3Si/c1-5-9(6-2,7-3)8-4/h5H,1H2,2-4H3
    • 29382-69-2
    • 2768-02-7

  • Applications

    Vinyltrimethoxysilane (CAS 2768-02-7) is commonly used as a silane coupling agent and crosslinking precursor to improve adhesion between organic polymers and inorganic substrates and to build siloxane networks in silicone and polymer systems. Real-world applications include: enhancing adhesion in coatings/inks and adhesives; acting as a functional monomer or crosslinking ingredient in polymers/plastics and composites; surface modification to promote bonding on glass, metals and oxide substrates for coatings and electronics; use in electronics for encapsulation, potting and protective layers; and serving as a precursor to other silane formulations in primers and surface treatments.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 482.3
    methanol 779.51
    isopropanol 307.06
    water 80.84
    ethyl acetate 161.42
    n-propanol 375.53
    acetone 185.5
    n-butanol 338.71
    acetonitrile 194.58
    DMF 309.77
    toluene 71.28
    isobutanol 223.93
    1,4-dioxane 361.76
    methyl acetate 178.35
    THF 473.1
    2-butanone 179.12
    n-pentanol 226.52
    sec-butanol 295.16
    n-hexane 39.96
    ethylene glycol 187.11
    NMP 288.51
    cyclohexane 75.29
    DMSO 335.03
    n-butyl acetate 119.83
    n-octanol 130.96
    chloroform 573.93
    n-propyl acetate 109.95
    acetic acid 508.19
    dichloromethane 438.19
    cyclohexanone 219.44
    propylene glycol 181.06
    isopropyl acetate 110.01
    DMAc 261.08
    2-ethoxyethanol 425.47
    isopentanol 219.7
    n-heptane 63.8
    ethyl formate 196.9
    1,2-dichloroethane 214.32
    n-hexanol 201.89
    2-methoxyethanol 653.82
    isobutyl acetate 66.52
    tetrachloromethane 167.22
    n-pentyl acetate 129.6
    transcutol 355.96
    n-heptanol 171.25
    ethylbenzene 41.91
    MIBK 97.58
    2-propoxyethanol 321.02
    tert-butanol 318.87
    MTBE 213.21
    2-butoxyethanol 278.49
    propionic acid 227.05
    o-xylene 62.96
    formic acid 511.99
    diethyl ether 283.19
    m-xylene 54.94
    p-xylene 53.61
    chlorobenzene 94.6
    dimethyl carbonate 70.6
    n-octane 27.55
    formamide 514.04
    cyclopentanone 241.78
    2-pentanone 155.03
    anisole 105.62
    cyclopentyl methyl ether 228.67
    gamma-butyrolactone 263.45
    1-methoxy-2-propanol 360.03
    pyridine 217.13
    3-pentanone 120.84
    furfural 271.25
    n-dodecane 15.08
    diethylene glycol 263.12
    diisopropyl ether 86.08
    tert-amyl alcohol 289.33
    acetylacetone 120.61
    n-hexadecane 15.82
    acetophenone 96.25
    methyl propionate 136.79
    isopentyl acetate 107.32
    trichloroethylene 352.64
    n-nonanol 119.54
    cyclohexanol 241.39
    benzyl alcohol 117.43
    2-ethylhexanol 123.54
    isooctanol 132.6
    dipropyl ether 151.13
    1,2-dichlorobenzene 97.0
    ethyl lactate 81.02
    propylene carbonate 151.11
    n-methylformamide 326.1
    2-pentanol 220.87
    n-pentane 75.61
    1-propoxy-2-propanol 217.9
    1-methoxy-2-propyl acetate 114.46
    2-(2-methoxypropoxy) propanol 118.71
    mesitylene 42.59
    ε-caprolactone 213.04
    p-cymene 57.8
    epichlorohydrin 317.09
    1,1,1-trichloroethane 215.07
    2-aminoethanol 324.95
    morpholine-4-carbaldehyde 291.95
    sulfolane 265.37
    2,2,4-trimethylpentane 39.28
    2-methyltetrahydrofuran 339.77
    n-hexyl acetate 133.73
    isooctane 25.71
    2-(2-butoxyethoxy)ethanol 186.12
    sec-butyl acetate 78.42
    tert-butyl acetate 128.8
    decalin 28.89
    glycerin 273.64
    diglyme 368.31
    acrylic acid 215.71
    isopropyl myristate 52.96
    n-butyric acid 293.22
    acetyl acetate 107.25
    di(2-ethylhexyl) phthalate 53.51
    ethyl propionate 90.54
    nitromethane 425.48
    1,2-diethoxyethane 169.12
    benzonitrile 103.96
    trioctyl phosphate 49.9
    1-bromopropane 168.01
    gamma-valerolactone 329.47
    n-decanol 81.31
    triethyl phosphate 65.15
    4-methyl-2-pentanol 112.87
    propionitrile 164.43
    vinylene carbonate 147.25
    1,1,2-trichlorotrifluoroethane 302.14
    DMS 59.9
    cumene 38.77
    2-octanol 115.69
    2-hexanone 117.36
    octyl acetate 72.17
    limonene 91.0
    1,2-dimethoxyethane 401.28
    ethyl orthosilicate 76.11
    tributyl phosphate 46.11
    diacetone alcohol 149.49
    N,N-dimethylaniline 93.69
    acrylonitrile 173.63
    aniline 134.62
    1,3-propanediol 419.46
    bromobenzene 83.4
    dibromomethane 315.06
    1,1,2,2-tetrachloroethane 331.33
    2-methyl-cyclohexyl acetate 92.82
    tetrabutyl urea 62.32
    diisobutyl methanol 85.37
    2-phenylethanol 118.22
    styrene 50.06
    dioctyl adipate 65.84
    dimethyl sulfate 94.75
    ethyl butyrate 110.88
    methyl lactate 104.67
    butyl lactate 103.25
    diethyl carbonate 71.68
    propanediol butyl ether 160.34
    triethyl orthoformate 103.07
    p-tert-butyltoluene 62.48
    methyl 4-tert-butylbenzoate 130.29
    morpholine 435.61
    tert-butylamine 232.97
    n-dodecanol 57.6
    dimethoxymethane 277.41
    ethylene carbonate 132.15
    cyrene 131.16
    2-ethoxyethyl acetate 136.91
    2-ethylhexyl acetate 90.15
    1,2,4-trichlorobenzene 111.29
    4-methylpyridine 172.83
    dibutyl ether 96.57
    2,6-dimethyl-4-heptanol 85.37
    DEF 205.93
    dimethyl isosorbide 163.47
    tetrachloroethylene 283.83
    eugenol 119.73
    triacetin 95.38
    span 80 120.16
    1,4-butanediol 182.27
    1,1-dichloroethane 202.87
    2-methyl-1-pentanol 161.73
    methyl formate 203.98
    2-methyl-1-butanol 227.26
    n-decane 28.11
    butyronitrile 191.74
    3,7-dimethyl-1-octanol 96.62
    1-chlorooctane 70.75
    1-chlorotetradecane 26.85
    n-nonane 28.58
    undecane 19.36
    tert-butylcyclohexane 29.0
    cyclooctane 38.32
    cyclopentanol 259.66
    tetrahydropyran 330.16
    tert-amyl methyl ether 188.5
    2,5,8-trioxanonane 200.77
    1-hexene 77.67
    2-isopropoxyethanol 232.27
    2,2,2-trifluoroethanol 257.3
    methyl butyrate 124.55

    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