1,1,1,3,3,5-Hexafluoro-5-(heptadecafluorooctyl)-5-(pentafluoroethyl)trisiloxane

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  • Identifiers

    CAS number
    163921-85-5

    Molecular formula
    C10F28O2Si3

    SMILES
    C(C(C(C(C(F)(F)[Si](C(C(F)(F)F)(F)F)(O[Si](O[Si](F)(F)F)(F)F)F)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F

    Safety labels

  • Odor profile

    Fragrance
    Odorless 59.14%
    Sweet 24.67%
    Fishy 20.45%
    Woody 20.39%
    Cooling 20.26%
    Balsamic 17.78%
    Savory 15.84%
    Clean 15.69%
    Dry 14.82%
    Animal 13.88%

     

    Flavor
    Odorless 33.87%
    Bitter 28.36%
    Bland 24.78%
    Sweet-like 18.11%
    Mild 17.11%
    Oriental 16.5%
    Bouillon 16.5%
    Bloody 16.46%
    Glue 16.32%
    Nitrile 16.29%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    2.05 (strong acid)

    Molecular weight
    768.32 g/mol

    Flash point

    • 19.09 ˚C est.

  • Synonyms

    • 163921-85-5
    • 1,1,1,3,3,5-Hexafluoro-5-(heptadecafluorooctyl)-5-(pentafluoroethyl)trisiloxane
    • DTXSID70724665
    • RefChem:212853
    • DTXCID60675410
    • PERFLUOROOCTYLETHYL TRISILOXANE
    • difluoro-[fluoro-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl)-(1,1,2,2,2-pentafluoroethyl)silyl]oxy-trifluorosilyloxysilane
    • SCHEMBL2761529
    • NS00111265
    • 163921-85-5

  • Applications

    1,1,1,3,3,5-Hexafluoro-5-(heptadecafluorooctyl)-5-(pentafluoroethyl)trisiloxane (CAS 163921-85-5) is used as a fluorinated siloxane surface modifier and lubricant additive to reduce surface energy and impart water- and oil-repellency in coatings, inks, and polymers; it also serves as a specialty surfactant/processing aid and as a mold-release agent for fluoropolymer and silicone systems, with potential applications as a dielectric/insulating additive in electronics and as a durability-enhancing additive in industrial lubricants and coatings.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 233.08
    methanol 591.47
    isopropanol 94.82
    water 20.66
    ethyl acetate 117.3
    n-propanol 146.83
    acetone 233.96
    n-butanol 78.44
    acetonitrile 137.18
    DMF 847.4
    toluene 24.81
    isobutanol 67.87
    1,4-dioxane 123.36
    methyl acetate 127.31
    THF 402.71
    2-butanone 167.03
    n-pentanol 53.56
    sec-butanol 74.52
    n-hexane 2.63
    ethylene glycol 150.78
    NMP 628.82
    cyclohexane 5.57
    DMSO 921.08
    n-butyl acetate 66.57
    n-octanol 36.9
    chloroform 67.47
    n-propyl acetate 80.65
    acetic acid 164.26
    dichloromethane 103.27
    cyclohexanone 123.36
    propylene glycol 137.47
    isopropyl acetate 66.43
    DMAc 621.53
    2-ethoxyethanol 242.93
    isopentanol 39.59
    n-heptane 6.36
    ethyl formate 125.79
    1,2-dichloroethane 75.39
    n-hexanol 44.38
    2-methoxyethanol 425.28
    isobutyl acetate 30.43
    tetrachloromethane 9.12
    n-pentyl acetate 62.43
    transcutol 237.18
    n-heptanol 37.81
    ethylbenzene 10.15
    MIBK 54.5
    2-propoxyethanol 253.52
    tert-butanol 63.31
    MTBE 44.69
    2-butoxyethanol 133.17
    propionic acid 117.87
    o-xylene 17.71
    formic acid 264.3
    diethyl ether 97.05
    m-xylene 14.21
    p-xylene 9.47
    chlorobenzene 14.2
    dimethyl carbonate 145.45
    n-octane 3.1
    formamide 403.15
    cyclopentanone 244.51
    2-pentanone 122.07
    anisole 43.9
    cyclopentyl methyl ether 111.13
    gamma-butyrolactone 309.83
    1-methoxy-2-propanol 293.84
    pyridine 113.31
    3-pentanone 110.14
    furfural 207.83
    n-dodecane 2.36
    diethylene glycol 211.32
    diisopropyl ether 16.07
    tert-amyl alcohol 57.8
    acetylacetone 138.62
    n-hexadecane 2.5
    acetophenone 58.87
    methyl propionate 168.73
    isopentyl acetate 37.27
    trichloroethylene 86.0
    n-nonanol 35.78
    cyclohexanol 41.61
    benzyl alcohol 50.19
    2-ethylhexanol 22.5
    isooctanol 21.55
    dipropyl ether 65.55
    1,2-dichlorobenzene 13.62
    ethyl lactate 91.86
    propylene carbonate 118.62
    n-methylformamide 503.66
    2-pentanol 44.73
    n-pentane 6.25
    1-propoxy-2-propanol 158.84
    1-methoxy-2-propyl acetate 119.63
    2-(2-methoxypropoxy) propanol 106.97
    mesitylene 7.85
    ε-caprolactone 122.32
    p-cymene 11.86
    epichlorohydrin 234.15
    1,1,1-trichloroethane 22.69
    2-aminoethanol 208.96
    morpholine-4-carbaldehyde 365.9
    sulfolane 395.76
    2,2,4-trimethylpentane 1.66
    2-methyltetrahydrofuran 131.76
    n-hexyl acetate 59.23
    isooctane 0.89
    2-(2-butoxyethoxy)ethanol 139.56
    sec-butyl acetate 39.16
    tert-butyl acetate 53.89
    decalin 1.48
    glycerin 190.71
    diglyme 204.74
    acrylic acid 126.54
    isopropyl myristate 23.41
    n-butyric acid 97.02
    acetyl acetate 60.65
    di(2-ethylhexyl) phthalate 24.66
    ethyl propionate 80.83
    nitromethane 411.56
    1,2-diethoxyethane 96.31
    benzonitrile 38.11
    trioctyl phosphate 24.21
    1-bromopropane 41.65
    gamma-valerolactone 337.15
    n-decanol 26.57
    triethyl phosphate 33.1
    4-methyl-2-pentanol 18.79
    propionitrile 103.9
    vinylene carbonate 105.67
    1,1,2-trichlorotrifluoroethane 185.52
    DMS 60.51
    cumene 6.11
    2-octanol 24.32
    2-hexanone 69.56
    octyl acetate 38.18
    limonene 18.05
    1,2-dimethoxyethane 254.72
    ethyl orthosilicate 29.21
    tributyl phosphate 25.31
    diacetone alcohol 92.64
    N,N-dimethylaniline 40.41
    acrylonitrile 152.61
    aniline 45.26
    1,3-propanediol 157.09
    bromobenzene 11.62
    dibromomethane 60.91
    1,1,2,2-tetrachloroethane 72.38
    2-methyl-cyclohexyl acetate 37.82
    tetrabutyl urea 60.32
    diisobutyl methanol 12.25
    2-phenylethanol 50.54
    styrene 12.23
    dioctyl adipate 38.81
    dimethyl sulfate 200.65
    ethyl butyrate 66.58
    methyl lactate 187.24
    butyl lactate 82.85
    diethyl carbonate 43.01
    propanediol butyl ether 118.84
    triethyl orthoformate 51.32
    p-tert-butyltoluene 11.67
    methyl 4-tert-butylbenzoate 66.24
    morpholine 211.69
    tert-butylamine 29.23
    n-dodecanol 19.07
    dimethoxymethane 474.91
    ethylene carbonate 88.09
    cyrene 147.95
    2-ethoxyethyl acetate 102.9
    2-ethylhexyl acetate 30.15
    1,2,4-trichlorobenzene 18.39
    4-methylpyridine 84.49
    dibutyl ether 31.97
    2,6-dimethyl-4-heptanol 12.25
    DEF 209.3
    dimethyl isosorbide 170.53
    tetrachloroethylene 47.75
    eugenol 76.93
    triacetin 76.36
    span 80 77.57
    1,4-butanediol 76.23
    1,1-dichloroethane 41.38
    2-methyl-1-pentanol 28.15
    methyl formate 323.31
    2-methyl-1-butanol 48.72
    n-decane 4.01
    butyronitrile 69.48
    3,7-dimethyl-1-octanol 19.69
    1-chlorooctane 13.22
    1-chlorotetradecane 5.74
    n-nonane 3.84
    undecane 2.99
    tert-butylcyclohexane 1.12
    cyclooctane 2.61
    cyclopentanol 80.57
    tetrahydropyran 86.1
    tert-amyl methyl ether 47.79
    2,5,8-trioxanonane 151.91
    1-hexene 9.86
    2-isopropoxyethanol 121.89
    2,2,2-trifluoroethanol 99.04
    methyl butyrate 94.38

    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