Vinyltriethoxysilane

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  • Identifiers

    CAS number
    78-08-0

    Molecular formula
    C8H18O3Si

    SMILES
    CCO[Si](C=C)(OCC)OCC

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 58.91%
    Fresh 38.38%
    Ethereal 36.53%
    Sweet 30.16%
    Odorless 27.7%
    Herbal 26.0%
    Pungent 24.1%
    Alcoholic 22.72%
    Sharp 22.15%
    Apple 21.93%

     

    Flavor
    Fruity 67.13%
    Green 45.14%
    Fatty 35.1%
    Sweet 33.4%
    Earthy 33.11%
    Vegetable 32.89%
    Fruit 29.94%
    Tropical 27.11%
    Nutty 27.06%
    Bitter 26.49%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    9.92 (weak base)

    Molecular weight
    190.31 g/mol

    Flash point

    • 42.47 ˚C est.

  • Synonyms

    • Vinyltriethoxysilane
    • TRIETHOXYVINYLSILANE
    • 78-08-0
    • Triethoxy(vinyl)silane
    • Silane, ethenyltriethoxy-
    • Triethoxyvinylsilicane
    • Silane, triethoxyvinyl-
    • Triethoxyvinyl silane
    • VTES
    • Silane A 151
    • KBE 1003
    • NV 1107
    • 8V1TKX755V
    • RefChem:901964
    • 201-081-7
    • Ethenyltriethoxysilane
    • ethenyl(triethoxy)silane
    • Union carbide A-151
    • VTS-E
    • (Triethoxysilyl)ethylene
    • MFCD00009063
    • DTXSID3044463
    • s21975
    • CCRIS 2645
    • ethenyl-triethoxysilane
    • Silane, vinyl triethoxy 1-151
    • EINECS 201-081-7
    • BRN 1767229
    • UNII-8V1TKX755V
    • AI3-51468
    • Dynasylan VTEO
    • vinyl triethoxysilane
    • VTEO
    • triethoxyvinyl silicane
    • vinyl triethoxy silane
    • vinyltri(ethoxy)silane
    • Ethenyltri(ethoxy)silane
    • Ethenyltriethyloxy-silane
    • Triethoxyvinylsilane, 97%
    • EC 201-081-7
    • SCHEMBL22548
    • CHEMBL3188350
    • DTXCID1024463
    • SCHEMBL19136057
    • TRI(ETHOXO)(VINYL)SILANE
    • FWDBOZPQNFPOLF-UHFFFAOYSA-
    • Tox21_302167
    • BBL011391
    • STL146494
    • AKOS005721107
    • CV-4910
    • FS-3827
    • CAS-78-08-0
    • NCGC00255729-01
    • DB-056282
    • A 151
    • NS00041103
    • V0044
    • Triethoxyvinylsilane, >=98%, deposition grade
    • Triethoxyvinylsilane 100 microg/mL in Acetonitrile
    • Q27271055
    • InChI=1/C8H18O3Si/c1-5-9-12(8-4,10-6-2)11-7-3/h8H,4-7H2,1-3H3
    • 78-08-0

  • Applications

    Vinyltriethoxysilane (CAS 78-08-0) is an organosilane with a vinyl group, commonly used as a silane coupling agent to improve adhesion between organic polymers and inorganic substrates (e.g., glass, silica, metals) in coatings, paints, and adhesives. It can be employed to introduce vinyl functionality onto polymers or surfaces to enable grafting or copolymerization, enhancing interfacial bonding and the durability of composite systems. In industrial polymer and rubber formulations, vinyltriethoxysilane often serves as a coupling agent to improve dispersion and compatibility of silica fillers within polymer matrices. It is used as a functional component in coatings and inks, participating in hydrolyzed siloxane networks and increasing adhesion to glass, ceramics, and metals. Additionally, it is used as an adhesion-promoting and sealant-related ingredient to boost bonding performance of adhesive systems.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 446.13
    methanol 548.64
    isopropanol 449.9
    water 2.2
    ethyl acetate 459.68
    n-propanol 505.03
    acetone 605.05
    n-butanol 433.01
    acetonitrile 443.21
    DMF 1085.24
    toluene 462.01
    isobutanol 407.63
    1,4-dioxane 1041.96
    methyl acetate 493.83
    THF 1389.22
    2-butanone 617.14
    n-pentanol 381.58
    sec-butanol 531.47
    n-hexane 211.89
    ethylene glycol 131.34
    NMP 1160.31
    cyclohexane 488.07
    DMSO 908.72
    n-butyl acetate 522.91
    n-octanol 400.02
    chloroform 2640.63
    n-propyl acetate 417.27
    acetic acid 438.98
    dichloromethane 2136.45
    cyclohexanone 1202.91
    propylene glycol 195.77
    isopropyl acetate 316.63
    DMAc 802.11
    2-ethoxyethanol 429.4
    isopentanol 329.92
    n-heptane 255.57
    ethyl formate 419.84
    1,2-dichloroethane 1164.46
    n-hexanol 491.17
    2-methoxyethanol 603.92
    isobutyl acetate 287.59
    tetrachloromethane 640.96
    n-pentyl acetate 517.33
    transcutol 529.13
    n-heptanol 366.85
    ethylbenzene 302.79
    MIBK 302.1
    2-propoxyethanol 558.81
    tert-butanol 504.87
    MTBE 488.1
    2-butoxyethanol 385.12
    propionic acid 465.92
    o-xylene 353.02
    formic acid 139.91
    diethyl ether 604.83
    m-xylene 298.84
    p-xylene 386.26
    chlorobenzene 700.14
    dimethyl carbonate 217.09
    n-octane 138.92
    formamide 218.83
    cyclopentanone 1180.14
    2-pentanone 494.44
    anisole 430.05
    cyclopentyl methyl ether 745.31
    gamma-butyrolactone 1231.54
    1-methoxy-2-propanol 476.53
    pyridine 1009.84
    3-pentanone 463.36
    furfural 986.25
    n-dodecane 98.13
    diethylene glycol 344.24
    diisopropyl ether 235.45
    tert-amyl alcohol 507.16
    acetylacetone 449.72
    n-hexadecane 109.73
    acetophenone 441.67
    methyl propionate 417.43
    isopentyl acetate 436.64
    trichloroethylene 1845.06
    n-nonanol 350.46
    cyclohexanol 691.32
    benzyl alcohol 381.17
    2-ethylhexanol 357.43
    isooctanol 304.77
    dipropyl ether 491.08
    1,2-dichlorobenzene 680.92
    ethyl lactate 222.5
    propylene carbonate 685.83
    n-methylformamide 513.79
    2-pentanol 362.63
    n-pentane 212.2
    1-propoxy-2-propanol 450.75
    1-methoxy-2-propyl acetate 367.09
    2-(2-methoxypropoxy) propanol 295.71
    mesitylene 221.94
    ε-caprolactone 994.49
    p-cymene 265.63
    epichlorohydrin 1195.26
    1,1,1-trichloroethane 1182.56
    2-aminoethanol 241.53
    morpholine-4-carbaldehyde 893.86
    sulfolane 1522.37
    2,2,4-trimethylpentane 120.66
    2-methyltetrahydrofuran 1059.26
    n-hexyl acetate 611.67
    isooctane 74.83
    2-(2-butoxyethoxy)ethanol 383.53
    sec-butyl acetate 281.45
    tert-butyl acetate 352.57
    decalin 183.14
    glycerin 239.52
    diglyme 670.62
    acrylic acid 391.83
    isopropyl myristate 273.56
    n-butyric acid 547.2
    acetyl acetate 291.33
    di(2-ethylhexyl) phthalate 227.75
    ethyl propionate 365.51
    nitromethane 675.2
    1,2-diethoxyethane 428.85
    benzonitrile 593.76
    trioctyl phosphate 216.47
    1-bromopropane 829.94
    gamma-valerolactone 1244.32
    n-decanol 258.71
    triethyl phosphate 253.09
    4-methyl-2-pentanol 199.76
    propionitrile 539.11
    vinylene carbonate 715.92
    1,1,2-trichlorotrifluoroethane 835.88
    DMS 328.04
    cumene 219.18
    2-octanol 353.81
    2-hexanone 427.52
    octyl acetate 344.72
    limonene 413.69
    1,2-dimethoxyethane 829.29
    ethyl orthosilicate 255.84
    tributyl phosphate 229.7
    diacetone alcohol 325.45
    N,N-dimethylaniline 346.29
    acrylonitrile 612.36
    aniline 436.12
    1,3-propanediol 317.67
    bromobenzene 792.8
    dibromomethane 1583.24
    1,1,2,2-tetrachloroethane 1759.71
    2-methyl-cyclohexyl acetate 409.28
    tetrabutyl urea 322.33
    diisobutyl methanol 233.9
    2-phenylethanol 405.7
    styrene 377.17
    dioctyl adipate 337.21
    dimethyl sulfate 348.51
    ethyl butyrate 418.83
    methyl lactate 231.61
    butyl lactate 334.93
    diethyl carbonate 301.13
    propanediol butyl ether 334.49
    triethyl orthoformate 348.87
    p-tert-butyltoluene 262.14
    methyl 4-tert-butylbenzoate 427.38
    morpholine 1038.72
    tert-butylamine 389.51
    n-dodecanol 206.31
    dimethoxymethane 612.17
    ethylene carbonate 611.36
    cyrene 388.47
    2-ethoxyethyl acetate 439.24
    2-ethylhexyl acetate 428.29
    1,2,4-trichlorobenzene 786.3
    4-methylpyridine 862.03
    dibutyl ether 440.92
    2,6-dimethyl-4-heptanol 233.9
    DEF 599.18
    dimethyl isosorbide 525.46
    tetrachloroethylene 1168.82
    eugenol 379.76
    triacetin 418.57
    span 80 355.69
    1,4-butanediol 195.47
    1,1-dichloroethane 1120.69
    2-methyl-1-pentanol 316.43
    methyl formate 421.86
    2-methyl-1-butanol 382.26
    n-decane 161.47
    butyronitrile 538.24
    3,7-dimethyl-1-octanol 323.08
    1-chlorooctane 411.19
    1-chlorotetradecane 179.29
    n-nonane 171.94
    undecane 119.78
    tert-butylcyclohexane 157.52
    cyclooctane 189.34
    cyclopentanol 744.19
    tetrahydropyran 1137.59
    tert-amyl methyl ether 445.35
    2,5,8-trioxanonane 465.08
    1-hexene 388.44
    2-isopropoxyethanol 310.43
    2,2,2-trifluoroethanol 210.17
    methyl butyrate 498.64

    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