1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane

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  • Identifiers

    CAS number
    3982-82-9

    Molecular formula
    C28H32O2Si3

    SMILES
    C[Si](C)(O[Si](C)(C1=CC=CC=C1)C2=CC=CC=C2)O[Si](C)(C3=CC=CC=C3)C4=CC=CC=C4

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 74.64%
    Rose 51.08%
    Green 49.66%
    Fruity 48.7%
    Sweet 37.94%
    Fresh 35.93%
    Balsamic 35.75%
    Hyacinth 27.86%
    Lily 27.03%
    Honey 26.8%

     

    Flavor
    Bitter 42.37%
    Green 42.36%
    Fruity 38.24%
    Floral 34.64%
    Rose 26.81%
    Sweet 25.74%
    Earthy 20.99%
    Tropical 20.84%
    Waxy 20.69%
    Mild 20.64%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    6.63 (neutral)

    Molecular weight
    484.8 g/mol

    Flash point

    • 199.5 ˚C est.

  • Synonyms

    • 3982-82-9
    • 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane
    • 1,1,5,5-Tetraphenyl-1,3,3,5-tetramethyltrisiloxane
    • EINECS 223-620-5
    • 6IOT4Y7V2B
    • Trisiloxane, 1,3,3,5-tetramethyl-1,1,5,5-tetraphenyl-
    • TETRAMETHYL TETRAPHENYL TRISILOXANE
    • DOW CORNING 704
    • HIVAC F 4
    • SILICONE DC 704
    • DTXSID2052073
    • DIMETHYLBIS(METHYLDIPHENYLSILYLOXY)SILANE
    • RefChem:412311
    • DTXCID7030640
    • Dow Corning Silicone Diffusion Pump Fluids 704
    • 1,3,3,5Tetramethyl1,1,5,5tetraphenyltrisiloxane
    • TETRAMETHYL TETRAPHENYL TRISILOXANE [INCI]
    • Trisiloxane, 1,3,3,5tetramethyl1,1,5,5tetraphenyl
    • 223-620-5
    • dimethyl-bis[[methyl(diphenyl)silyl]oxy]silane
    • 1,1,5,5-Tetraphenyltetramethyltrisiloxane
    • MFCD00053661
    • 1,3,3,5-tetramethyl-1,1,5,5-tetraphenyl-trisiloxane
    • C28H32O2Si3
    • UNII-6IOT4Y7V2B
    • SCHEMBL339537
    • YFCVAZGXPLMNDG-UHFFFAOYSA-N
    • AKOS025310976
    • DB-049486
    • NS00048833
    • Dow Corning(R) silicone diffusion pump fluids, 702
    • Dow Corning(R) silicone diffusion pump fluids, 704
    • Dow Corning(R) silicone diffusion pump fluids, 705
    • Q27264965
    • 3982-82-9

  • Applications

    For 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane (CAS 3982-82-9), potential real-world applications include use as a high-temperature silicone oil component and lubricant in polymer processing; as a surface-modifying additive in coatings, inks and adhesives to tailor wettability and slip; as an intermediate or precursor in silicone chemistry for the synthesis of specialty siloxanes and related materials; and as a processing aid or component in electronics encapsulation or polymer composites, with possible use in industrial cleaning formulations as a solvent-like additive.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 15.17
    methanol 8.94
    isopropanol 8.69
    water 0.04
    ethyl acetate 44.26
    n-propanol 19.63
    acetone 41.64
    n-butanol 17.67
    acetonitrile 12.94
    DMF 124.72
    toluene 42.67
    isobutanol 13.33
    1,4-dioxane 83.42
    methyl acetate 37.28
    THF 380.24
    2-butanone 64.24
    n-pentanol 15.27
    sec-butanol 14.76
    n-hexane 5.57
    ethylene glycol 1.58
    NMP 251.08
    cyclohexane 11.22
    DMSO 72.95
    n-butyl acetate 51.15
    n-octanol 14.4
    chloroform 302.23
    n-propyl acetate 37.32
    acetic acid 17.35
    dichloromethane 282.68
    cyclohexanone 134.59
    propylene glycol 4.14
    isopropyl acetate 35.15
    DMAc 165.9
    2-ethoxyethanol 23.83
    isopentanol 13.95
    n-heptane 8.94
    ethyl formate 27.38
    1,2-dichloroethane 130.41
    n-hexanol 21.59
    2-methoxyethanol 30.99
    isobutyl acetate 30.4
    tetrachloromethane 27.8
    n-pentyl acetate 52.05
    transcutol 35.73
    n-heptanol 17.98
    ethylbenzene 21.72
    MIBK 34.79
    2-propoxyethanol 44.84
    tert-butanol 9.37
    MTBE 26.03
    2-butoxyethanol 35.27
    propionic acid 20.55
    o-xylene 21.64
    formic acid 5.07
    diethyl ether 43.44
    m-xylene 21.8
    p-xylene 23.51
    chlorobenzene 85.29
    dimethyl carbonate 31.37
    n-octane 3.55
    formamide 12.0
    cyclopentanone 235.89
    2-pentanone 59.45
    anisole 47.02
    cyclopentyl methyl ether 109.95
    gamma-butyrolactone 215.61
    1-methoxy-2-propanol 28.53
    pyridine 132.47
    3-pentanone 57.4
    furfural 131.63
    n-dodecane 2.33
    diethylene glycol 13.71
    diisopropyl ether 12.62
    tert-amyl alcohol 15.0
    acetylacetone 55.62
    n-hexadecane 2.74
    acetophenone 51.3
    methyl propionate 51.44
    isopentyl acetate 46.46
    trichloroethylene 278.84
    n-nonanol 16.25
    cyclohexanol 24.11
    benzyl alcohol 28.02
    2-ethylhexanol 20.24
    isooctanol 15.2
    dipropyl ether 45.25
    1,2-dichlorobenzene 76.72
    ethyl lactate 17.73
    propylene carbonate 90.64
    n-methylformamide 35.84
    2-pentanol 12.26
    n-pentane 5.5
    1-propoxy-2-propanol 36.51
    1-methoxy-2-propyl acetate 56.26
    2-(2-methoxypropoxy) propanol 28.5
    mesitylene 11.89
    ε-caprolactone 116.41
    p-cymene 17.84
    epichlorohydrin 230.33
    1,1,1-trichloroethane 92.41
    2-aminoethanol 6.64
    morpholine-4-carbaldehyde 135.21
    sulfolane 225.37
    2,2,4-trimethylpentane 3.19
    2-methyltetrahydrofuran 155.84
    n-hexyl acetate 47.76
    isooctane 1.85
    2-(2-butoxyethoxy)ethanol 33.36
    sec-butyl acetate 28.82
    tert-butyl acetate 37.25
    decalin 5.74
    glycerin 6.36
    diglyme 67.21
    acrylic acid 18.24
    isopropyl myristate 21.19
    n-butyric acid 33.47
    acetyl acetate 26.07
    di(2-ethylhexyl) phthalate 22.73
    ethyl propionate 38.42
    nitromethane 40.61
    1,2-diethoxyethane 35.61
    benzonitrile 40.26
    trioctyl phosphate 17.41
    1-bromopropane 85.9
    gamma-valerolactone 223.0
    n-decanol 11.85
    triethyl phosphate 25.32
    4-methyl-2-pentanol 8.54
    propionitrile 22.68
    vinylene carbonate 80.05
    1,1,2-trichlorotrifluoroethane 105.34
    DMS 38.98
    cumene 13.6
    2-octanol 12.83
    2-hexanone 46.19
    octyl acetate 27.63
    limonene 27.04
    1,2-dimethoxyethane 59.44
    ethyl orthosilicate 25.41
    tributyl phosphate 18.96
    diacetone alcohol 29.73
    N,N-dimethylaniline 35.93
    acrylonitrile 25.8
    aniline 36.09
    1,3-propanediol 9.88
    bromobenzene 101.55
    dibromomethane 179.25
    1,1,2,2-tetrachloroethane 201.18
    2-methyl-cyclohexyl acetate 45.77
    tetrabutyl urea 33.22
    diisobutyl methanol 11.2
    2-phenylethanol 33.73
    styrene 27.45
    dioctyl adipate 32.23
    dimethyl sulfate 60.29
    ethyl butyrate 46.19
    methyl lactate 22.06
    butyl lactate 32.27
    diethyl carbonate 27.52
    propanediol butyl ether 20.31
    triethyl orthoformate 38.46
    p-tert-butyltoluene 16.07
    methyl 4-tert-butylbenzoate 50.3
    morpholine 108.71
    tert-butylamine 7.03
    n-dodecanol 8.76
    dimethoxymethane 74.72
    ethylene carbonate 60.91
    cyrene 52.12
    2-ethoxyethyl acetate 61.34
    2-ethylhexyl acetate 45.41
    1,2,4-trichlorobenzene 90.09
    4-methylpyridine 98.49
    dibutyl ether 23.49
    2,6-dimethyl-4-heptanol 11.2
    DEF 81.91
    dimethyl isosorbide 79.04
    tetrachloroethylene 110.02
    eugenol 40.5
    triacetin 40.8
    span 80 31.46
    1,4-butanediol 4.56
    1,1-dichloroethane 89.04
    2-methyl-1-pentanol 14.98
    methyl formate 28.41
    2-methyl-1-butanol 17.15
    n-decane 4.46
    butyronitrile 25.74
    3,7-dimethyl-1-octanol 13.32
    1-chlorooctane 18.44
    1-chlorotetradecane 7.23
    n-nonane 3.85
    undecane 3.11
    tert-butylcyclohexane 4.54
    cyclooctane 4.48
    cyclopentanol 38.83
    tetrahydropyran 120.82
    tert-amyl methyl ether 30.96
    2,5,8-trioxanonane 44.41
    1-hexene 17.78
    2-isopropoxyethanol 19.16
    2,2,2-trifluoroethanol 10.67
    methyl butyrate 48.68

    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