Tetradecamethylcycloheptasiloxane

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  • Identifiers

    CAS number
    107-50-6

    Molecular formula
    C14H42O7Si7

    SMILES
    C[Si]1(O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)C

    Safety labels

  • Odor profile

    Fragrance
    Odorless 64.86%
    Fruity 20.97%
    Green 18.79%
    Fresh 16.84%
    Ethereal 15.95%
    Alcoholic 15.58%
    Cooling 14.33%
    Earthy 13.86%
    Creamy 13.65%
    Meaty 13.62%

     

    Flavor
    Green 55.7%
    Earthy 50.4%
    Vegetable 39.74%
    Sulfurous 26.54%
    Sweet 25.16%
    Blackberry 24.66%
    Burnt 24.51%
    Potato 21.91%
    Herbal 21.62%
    Musty 20.9%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    8.74 (weak base)

    Molecular weight
    519.07 g/mol

    Flash point

    • 108.87 ˚C est.

  • Synonyms

    • TETRADECAMETHYLCYCLOHEPTASILOXANE
    • Cyclomethicone 7
    • Cycloheptasiloxane, tetradecamethyl-
    • 2,2,4,4,6,6,8,8,10,10,12,12,14,14-tetradecamethyl-1,3,5,7,9,11,13-heptaoxa-2,4,6,8,10,12,14-heptasilacyclotetradecane
    • UNII-KCK5L8VU47
    • KCK5L8VU47
    • EINECS 203-496-9
    • Tetradecamethylcyclotetradecaneheptasiloxane
    • J182.220I
    • DTXSID8059348
    • CHEBI:87988
    • 2,2,4,4,6,6,8,8,10,10,12,12,14,14-TETRADECAMETHYLCYCLOTETRADECANEHEPTASILOXANE
    • CYCLOHEPTASILOXANE, 2,2,4,4,6,6,8,8,10,10,12,12,14,14-TETRADECAMETHYL-
    • RefChem:188486
    • DTXCID5033040
    • GSANOGQCVHBHIF-UHFFFAOYSA-N
    • 107-50-6
    • MFCD30534308
    • tetradecamethyl cycloheptasiloxane
    • Cycloheptasiloxane,2,2,4,4,6,6,8,8,10,10,12,12,14,14-tetradecamethyl-
    • 2,2,4,4,6,6,8,8,10,10,12,12,14,14-Tetradecamethylcycloheptasiloxane
    • C14H42O7Si7
    • Tetradecamethyl-cycloheptasiloxane; 2,2,4,4,6,6,8,8,10,10,12,12,14,14-Tetradecamethyl-cycloheptasiloxane
    • SCHEMBL375229
    • MSK001844
    • AKOS028110683
    • MSK001844-1000M
    • SY056009
    • NS00041292
    • T2678
    • T71579
    • Q27160005
    • Simethicone Impurity 17; Tetradecamethylcycloheptasiloxane
    • Tetradecamethyl cycloheptasiloxane Solution in Methanol, 1000ug/mL
    • 2,2,4,4,6,6,8,8,10,10,12,12,14,14-Tetradecamethylcycloheptasiloxane #
    • D-7
    • D7
    • 107-50-6

  • Applications

    Tetradecamethylcycloheptasiloxane (CAS 107-50-6) is used as a processing solvent and intermediate in organosilicon and silicone resin chemistry; it is commonly evaluated as a diluent or solvent in polymer synthesis and may act as a processing aid in coatings and inks; it can serve as a solvent or additive in adhesives; in electronics manufacturing it can function as a solvent/processing aid for photoresists and related formulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 152.17
    methanol 177.78
    isopropanol 106.06
    water 31.1
    ethyl acetate 323.67
    n-propanol 146.26
    acetone 365.43
    n-butanol 116.8
    acetonitrile 128.63
    DMF 1069.45
    toluene 161.29
    isobutanol 103.65
    1,4-dioxane 432.98
    methyl acetate 286.6
    THF 1060.54
    2-butanone 256.4
    n-pentanol 77.09
    sec-butanol 101.46
    n-hexane 18.74
    ethylene glycol 91.55
    NMP 1731.52
    cyclohexane 35.21
    DMSO 668.35
    n-butyl acetate 198.62
    n-octanol 73.17
    chloroform 431.22
    n-propyl acetate 189.33
    acetic acid 402.77
    dichloromethane 407.04
    cyclohexanone 522.39
    propylene glycol 142.14
    isopropyl acetate 255.86
    DMAc 932.85
    2-ethoxyethanol 198.63
    isopentanol 85.22
    n-heptane 23.09
    ethyl formate 220.88
    1,2-dichloroethane 251.28
    n-hexanol 97.88
    2-methoxyethanol 397.06
    isobutyl acetate 143.46
    tetrachloromethane 89.86
    n-pentyl acetate 199.92
    transcutol 359.2
    n-heptanol 84.21
    ethylbenzene 54.8
    MIBK 175.09
    2-propoxyethanol 317.36
    tert-butanol 118.59
    MTBE 122.04
    2-butoxyethanol 211.09
    propionic acid 267.82
    o-xylene 106.36
    formic acid 227.56
    diethyl ether 161.65
    m-xylene 129.86
    p-xylene 71.86
    chlorobenzene 220.14
    dimethyl carbonate 415.22
    n-octane 11.03
    formamide 321.87
    cyclopentanone 908.32
    2-pentanone 275.54
    anisole 160.13
    cyclopentyl methyl ether 442.09
    gamma-butyrolactone 1271.05
    1-methoxy-2-propanol 398.01
    pyridine 389.9
    3-pentanone 243.66
    furfural 892.03
    n-dodecane 9.29
    diethylene glycol 249.28
    diisopropyl ether 74.46
    tert-amyl alcohol 107.37
    acetylacetone 519.37
    n-hexadecane 10.57
    acetophenone 223.79
    methyl propionate 398.1
    isopentyl acetate 169.66
    trichloroethylene 564.7
    n-nonanol 76.5
    cyclohexanol 164.76
    benzyl alcohol 136.39
    2-ethylhexanol 71.13
    isooctanol 67.63
    dipropyl ether 145.22
    1,2-dichlorobenzene 221.59
    ethyl lactate 170.23
    propylene carbonate 680.07
    n-methylformamide 440.67
    2-pentanol 88.83
    n-pentane 25.55
    1-propoxy-2-propanol 254.13
    1-methoxy-2-propyl acetate 382.91
    2-(2-methoxypropoxy) propanol 206.84
    mesitylene 82.51
    ε-caprolactone 575.06
    p-cymene 58.11
    epichlorohydrin 698.19
    1,1,1-trichloroethane 257.11
    2-aminoethanol 159.54
    morpholine-4-carbaldehyde 1031.6
    sulfolane 1505.05
    2,2,4-trimethylpentane 14.48
    2-methyltetrahydrofuran 458.24
    n-hexyl acetate 216.53
    isooctane 12.1
    2-(2-butoxyethoxy)ethanol 244.81
    sec-butyl acetate 149.66
    tert-butyl acetate 289.92
    decalin 20.0
    glycerin 268.21
    diglyme 401.67
    acrylic acid 312.18
    isopropyl myristate 99.89
    n-butyric acid 296.96
    acetyl acetate 371.26
    di(2-ethylhexyl) phthalate 131.32
    ethyl propionate 216.82
    nitromethane 778.65
    1,2-diethoxyethane 160.45
    benzonitrile 156.11
    trioctyl phosphate 96.04
    1-bromopropane 124.59
    gamma-valerolactone 1190.64
    n-decanol 57.3
    triethyl phosphate 134.71
    4-methyl-2-pentanol 60.49
    propionitrile 113.86
    vinylene carbonate 625.22
    1,1,2-trichlorotrifluoroethane 656.96
    DMS 295.8
    cumene 43.89
    2-octanol 61.75
    2-hexanone 145.22
    octyl acetate 136.47
    limonene 86.93
    1,2-dimethoxyethane 294.5
    ethyl orthosilicate 123.35
    tributyl phosphate 107.48
    diacetone alcohol 268.02
    N,N-dimethylaniline 138.63
    acrylonitrile 165.57
    aniline 218.66
    1,3-propanediol 170.81
    bromobenzene 218.19
    dibromomethane 245.35
    1,1,2,2-tetrachloroethane 436.41
    2-methyl-cyclohexyl acetate 181.6
    tetrabutyl urea 164.66
    diisobutyl methanol 49.41
    2-phenylethanol 152.88
    styrene 71.2
    dioctyl adipate 174.34
    dimethyl sulfate 841.27
    ethyl butyrate 188.37
    methyl lactate 348.85
    butyl lactate 194.04
    diethyl carbonate 141.2
    propanediol butyl ether 183.07
    triethyl orthoformate 174.7
    p-tert-butyltoluene 67.84
    methyl 4-tert-butylbenzoate 302.52
    morpholine 504.53
    tert-butylamine 76.8
    n-dodecanol 44.5
    dimethoxymethane 632.18
    ethylene carbonate 480.08
    cyrene 335.46
    2-ethoxyethyl acetate 303.75
    2-ethylhexyl acetate 148.32
    1,2,4-trichlorobenzene 304.25
    4-methylpyridine 351.4
    dibutyl ether 77.8
    2,6-dimethyl-4-heptanol 49.41
    DEF 433.01
    dimethyl isosorbide 488.68
    tetrachloroethylene 274.2
    eugenol 248.11
    triacetin 347.16
    span 80 242.41
    1,4-butanediol 69.62
    1,1-dichloroethane 212.71
    2-methyl-1-pentanol 60.56
    methyl formate 392.0
    2-methyl-1-butanol 94.4
    n-decane 15.17
    butyronitrile 107.84
    3,7-dimethyl-1-octanol 63.29
    1-chlorooctane 50.53
    1-chlorotetradecane 25.83
    n-nonane 13.49
    undecane 11.36
    tert-butylcyclohexane 19.09
    cyclooctane 19.69
    cyclopentanol 265.38
    tetrahydropyran 341.46
    tert-amyl methyl ether 140.06
    2,5,8-trioxanonane 328.46
    1-hexene 42.1
    2-isopropoxyethanol 137.68
    2,2,2-trifluoroethanol 280.61
    methyl butyrate 233.98

    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