Allyldimethylsilane

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  • Identifiers

    CAS number
    3937-30-2

    Molecular formula
    C5H11Si

    SMILES
    C[Si](C)CC=C

    Safety labels

  • Odor profile

    Fragrance
    Cheesy 57.47%
    Fishy 52.27%
    Pungent 37.72%
    Ripe 36.43%
    Fruity 28.04%
    Green 24.72%
    Fresh 23.78%
    Metallic 23.2%
    Sulfurous 22.99%
    Oily 22.37%

     

    Flavor
    Fishy 27.4%
    Glue 20.64%
    Bloody 20.14%
    Sulfurous 20.07%
    Skunky 19.41%
    Acrid 19.21%
    Yeasty 19.15%
    Onion 18.95%
    Green 18.94%
    Mousy 18.8%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    8.4 (weak base)

    Molecular weight
    99.23 g/mol

    Flash point

    • -16.69 ˚C est.

  • Synonyms

    • Allyldimethylsilane
    • 3937-30-2
    • Silane, dimethyl-2-propenyl-
    • RefChem:318106
    • ZTFTVJBYCJNEGJ-UHFFFAOYSA-N
    • Silane, dimethyl-2-propen-1-yl-
    • MFCD00053697
    • DIMETHYL(PROP-2-EN-1-YL)SILANE
    • C5H11Si
    • SCHEMBL215409
    • DTXSID50883921
    • ZBMGMUODZNQAQI-UHFFFAOYSA-N
    • AKOS006230572
    • Allyldimethylsilane

  • Applications

    Allyldimethylsilane (CAS 3937-30-2) is primarily used as a building block in silicone chemistry to introduce vinyl functionality and enable downstream silicone-based polymer synthesis. It commonly serves as a monomer or comonomer in radical polymerizations to yield vinylsilane-containing polymers or copolymers. It can act as a crosslinking agent in UV-curable coatings and adhesive formulations by providing reactive allyl groups that participate in curing. It also functions as a silane coupling/adhesion promoter for coatings, adhesives, and composites, improving bonding to inorganic substrates and to plastics. In addition, it may be used as a precursor for surface modification of polymeric and other substrates to tailor surface energy and compatibility in electronics-related and high-performance coatings. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1042.22
    methanol 813.88
    isopropanol 722.8
    water 0.57
    ethyl acetate 600.81
    n-propanol 890.98
    acetone 929.6
    n-butanol 951.06
    acetonitrile 367.07
    DMF 332.26
    toluene 339.66
    isobutanol 526.08
    1,4-dioxane 1081.3
    methyl acetate 446.64
    THF 2560.26
    2-butanone 784.74
    n-pentanol 599.46
    sec-butanol 665.38
    n-hexane 713.3
    ethylene glycol 99.26
    NMP 484.5
    cyclohexane 876.1
    DMSO 487.47
    n-butyl acetate 1198.58
    n-octanol 437.83
    chloroform 592.03
    n-propyl acetate 424.58
    acetic acid 403.16
    dichloromethane 450.24
    cyclohexanone 1101.9
    propylene glycol 164.93
    isopropyl acetate 372.86
    DMAc 239.45
    2-ethoxyethanol 450.43
    isopentanol 563.91
    n-heptane 1126.45
    ethyl formate 307.17
    1,2-dichloroethane 385.09
    n-hexanol 1351.6
    2-methoxyethanol 667.06
    isobutyl acetate 277.77
    tetrachloromethane 228.89
    n-pentyl acetate 418.57
    transcutol 1056.41
    n-heptanol 550.3
    ethylbenzene 159.19
    MIBK 387.22
    2-propoxyethanol 1111.21
    tert-butanol 671.38
    MTBE 714.03
    2-butoxyethanol 532.9
    propionic acid 394.68
    o-xylene 189.29
    formic acid 94.91
    diethyl ether 1289.65
    m-xylene 238.12
    p-xylene 167.94
    chlorobenzene 297.1
    dimethyl carbonate 85.61
    n-octane 268.41
    formamide 110.92
    cyclopentanone 1204.15
    2-pentanone 818.12
    anisole 234.0
    cyclopentyl methyl ether 1108.08
    gamma-butyrolactone 816.45
    1-methoxy-2-propanol 524.51
    pyridine 573.17
    3-pentanone 518.76
    furfural 429.85
    n-dodecane 115.12
    diethylene glycol 409.36
    diisopropyl ether 406.17
    tert-amyl alcohol 537.48
    acetylacetone 404.97
    n-hexadecane 128.17
    acetophenone 164.49
    methyl propionate 365.63
    isopentyl acetate 753.38
    trichloroethylene 453.67
    n-nonanol 376.65
    cyclohexanol 709.83
    benzyl alcohol 162.47
    2-ethylhexanol 854.81
    isooctanol 362.24
    dipropyl ether 1502.36
    1,2-dichlorobenzene 182.45
    ethyl lactate 123.4
    propylene carbonate 380.23
    n-methylformamide 249.54
    2-pentanol 622.94
    n-pentane 693.54
    1-propoxy-2-propanol 1043.33
    1-methoxy-2-propyl acetate 540.56
    2-(2-methoxypropoxy) propanol 272.57
    mesitylene 163.28
    ε-caprolactone 684.26
    p-cymene 237.24
    epichlorohydrin 684.46
    1,1,1-trichloroethane 399.99
    2-aminoethanol 251.38
    morpholine-4-carbaldehyde 432.64
    sulfolane 609.16
    2,2,4-trimethylpentane 159.48
    2-methyltetrahydrofuran 1683.5
    n-hexyl acetate 492.49
    isooctane 166.07
    2-(2-butoxyethoxy)ethanol 476.35
    sec-butyl acetate 263.97
    tert-butyl acetate 409.96
    decalin 189.61
    glycerin 165.35
    diglyme 699.1
    acrylic acid 210.56
    isopropyl myristate 222.04
    n-butyric acid 643.22
    acetyl acetate 250.85
    di(2-ethylhexyl) phthalate 126.54
    ethyl propionate 292.33
    nitromethane 354.42
    1,2-diethoxyethane 798.47
    benzonitrile 218.07
    trioctyl phosphate 143.07
    1-bromopropane 621.33
    gamma-valerolactone 863.05
    n-decanol 285.86
    triethyl phosphate 143.46
    4-methyl-2-pentanol 285.45
    propionitrile 392.83
    vinylene carbonate 244.87
    1,1,2-trichlorotrifluoroethane 268.07
    DMS 150.51
    cumene 113.73
    2-octanol 344.53
    2-hexanone 591.22
    octyl acetate 272.16
    limonene 527.53
    1,2-dimethoxyethane 687.07
    ethyl orthosilicate 183.15
    tributyl phosphate 153.41
    diacetone alcohol 361.5
    N,N-dimethylaniline 149.83
    acrylonitrile 263.75
    aniline 294.57
    1,3-propanediol 387.45
    bromobenzene 289.82
    dibromomethane 508.03
    1,1,2,2-tetrachloroethane 389.85
    2-methyl-cyclohexyl acetate 346.96
    tetrabutyl urea 196.12
    diisobutyl methanol 448.82
    2-phenylethanol 341.5
    styrene 183.33
    dioctyl adipate 206.93
    dimethyl sulfate 82.88
    ethyl butyrate 615.71
    methyl lactate 128.62
    butyl lactate 246.0
    diethyl carbonate 244.08
    propanediol butyl ether 327.8
    triethyl orthoformate 425.25
    p-tert-butyltoluene 236.14
    methyl 4-tert-butylbenzoate 192.49
    morpholine 1192.81
    tert-butylamine 581.33
    n-dodecanol 229.54
    dimethoxymethane 450.32
    ethylene carbonate 265.41
    cyrene 188.48
    2-ethoxyethyl acetate 364.99
    2-ethylhexyl acetate 673.43
    1,2,4-trichlorobenzene 193.15
    4-methylpyridine 491.24
    dibutyl ether 762.4
    2,6-dimethyl-4-heptanol 448.82
    DEF 396.26
    dimethyl isosorbide 448.48
    tetrachloroethylene 315.95
    eugenol 178.32
    triacetin 213.03
    span 80 365.44
    1,4-butanediol 155.04
    1,1-dichloroethane 462.3
    2-methyl-1-pentanol 390.46
    methyl formate 172.96
    2-methyl-1-butanol 556.3
    n-decane 217.92
    butyronitrile 602.98
    3,7-dimethyl-1-octanol 398.34
    1-chlorooctane 373.3
    1-chlorotetradecane 148.49
    n-nonane 261.91
    undecane 150.04
    tert-butylcyclohexane 181.7
    cyclooctane 373.47
    cyclopentanol 775.52
    tetrahydropyran 1918.8
    tert-amyl methyl ether 532.17
    2,5,8-trioxanonane 426.53
    1-hexene 869.92
    2-isopropoxyethanol 321.95
    2,2,2-trifluoroethanol 84.57
    methyl butyrate 377.34

    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