Phenyl Dimethicone

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  • Identifiers

    CAS number
    9005-12-3

    Molecular formula
    C7H8OSi

    SMILES
    C[Si](=O)C1=CC=CC=C1

    Safety labels

  • Odor profile

    Fragrance
    Sweet 90.4%
    Floral 79.26%
    Powdery 60.34%
    Hawthorn 59.97%
    Almond 58.33%
    Coumarinic 57.78%
    Cherry 56.95%
    Vanilla 54.32%
    Balsamic 53.18%
    Hay 52.62%

     

    Flavor
    Sweet 87.57%
    Hawthorn 63.8%
    Almond 58.52%
    Bitter 56.91%
    Cherry 53.23%
    Mimosa 46.9%
    Hawthorne 46.12%
    Balsam 45.9%
    Vanilla 39.36%
    Phenolic 35.76%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    8.59 (weak base)

    Molecular weight
    136.22 g/mol

    Flash point

    • 60.02 ˚C est.

  • Synonyms

    • Phenyl dimethicone
    • Phenyl simethicone
    • RefChem:861585
    • POLY(PHENYLMETHYLSILOXANE)
    • 9005-12-3
    • Polyphenylmethylsiloxane, MW 2500-2700
    • 4543-12-8
    • METHYL(PHENYL)SILANONE
    • methylphenylsilanone
    • C7H8OSi
    • methyl-oxo-phenyl-silane
    • SCHEMBL1460581
    • DTXSID40963382
    • AKOS024386312
    • ST51037356
    • 9005-12-3

  • Applications

    Phenyl Dimethicone (CAS 9005-12-3) is a phenyl-substituted siloxane oil that is widely used in cosmetics and personal care as a conditioning emollient and slip agent, providing moisturization, smoother texture, and improved spreadability in skin care creams, lotions, and hair serums. It also serves as a solvent and fragrance carrier in perfumery and fragrance formulations. In polymers and coatings, it functions as a processing aid and lubricant, improving flow, mold release, and surface finish during processing and application. In household products, it is employed as a conditioning agent and gloss enhancer in fabric care and surface polishes, and may be used to modify texture and slip in other cleaning and polish formulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2881.13
    methanol 2832.85
    isopropanol 1577.35
    water 12.32
    ethyl acetate 1262.29
    n-propanol 1957.78
    acetone 1816.1
    n-butanol 1269.83
    acetonitrile 1778.66
    DMF 1960.97
    toluene 880.32
    isobutanol 1015.61
    1,4-dioxane 4227.63
    methyl acetate 1267.17
    THF 3179.56
    2-butanone 1399.77
    n-pentanol 827.71
    sec-butanol 1113.46
    n-hexane 253.55
    ethylene glycol 513.58
    NMP 1557.38
    cyclohexane 431.59
    DMSO 2338.66
    n-butyl acetate 664.43
    n-octanol 463.55
    chloroform 3462.91
    n-propyl acetate 731.09
    acetic acid 1077.16
    dichloromethane 2699.08
    cyclohexanone 2036.2
    propylene glycol 509.02
    isopropyl acetate 540.95
    DMAc 894.6
    2-ethoxyethanol 1148.13
    isopentanol 673.22
    n-heptane 186.29
    ethyl formate 832.68
    1,2-dichloroethane 1860.78
    n-hexanol 899.45
    2-methoxyethanol 1773.36
    isobutyl acetate 397.52
    tetrachloromethane 626.52
    n-pentyl acetate 466.64
    transcutol 2038.49
    n-heptanol 483.45
    ethylbenzene 305.08
    MIBK 531.28
    2-propoxyethanol 1392.35
    tert-butanol 1055.1
    MTBE 866.12
    2-butoxyethanol 771.96
    propionic acid 1098.89
    o-xylene 340.0
    formic acid 474.14
    diethyl ether 1901.87
    m-xylene 397.39
    p-xylene 283.19
    chlorobenzene 862.9
    dimethyl carbonate 394.87
    n-octane 86.08
    formamide 943.95
    cyclopentanone 2074.59
    2-pentanone 1094.9
    anisole 682.01
    cyclopentyl methyl ether 1423.08
    gamma-butyrolactone 2025.07
    1-methoxy-2-propanol 1237.7
    pyridine 2353.1
    3-pentanone 792.64
    furfural 1456.51
    n-dodecane 59.92
    diethylene glycol 985.33
    diisopropyl ether 355.93
    tert-amyl alcohol 734.83
    acetylacetone 847.65
    n-hexadecane 66.78
    acetophenone 464.31
    methyl propionate 962.04
    isopentyl acetate 428.43
    trichloroethylene 2371.17
    n-nonanol 385.28
    cyclohexanol 1098.71
    benzyl alcohol 492.07
    2-ethylhexanol 431.91
    isooctanol 362.32
    dipropyl ether 705.33
    1,2-dichlorobenzene 555.86
    ethyl lactate 286.82
    propylene carbonate 833.12
    n-methylformamide 1544.32
    2-pentanol 746.73
    n-pentane 256.3
    1-propoxy-2-propanol 820.39
    1-methoxy-2-propyl acetate 562.76
    2-(2-methoxypropoxy) propanol 404.29
    mesitylene 220.89
    ε-caprolactone 1460.49
    p-cymene 158.55
    epichlorohydrin 2257.73
    1,1,1-trichloroethane 1273.61
    2-aminoethanol 990.77
    morpholine-4-carbaldehyde 2001.37
    sulfolane 1892.02
    2,2,4-trimethylpentane 70.83
    2-methyltetrahydrofuran 2170.55
    n-hexyl acetate 610.77
    isooctane 73.52
    2-(2-butoxyethoxy)ethanol 754.94
    sec-butyl acetate 363.9
    tert-butyl acetate 513.7
    decalin 115.86
    glycerin 596.21
    diglyme 1324.94
    acrylic acid 809.32
    isopropyl myristate 230.81
    n-butyric acid 1159.6
    acetyl acetate 491.31
    di(2-ethylhexyl) phthalate 164.67
    ethyl propionate 553.43
    nitromethane 1870.61
    1,2-diethoxyethane 820.61
    benzonitrile 657.55
    trioctyl phosphate 163.32
    1-bromopropane 1270.41
    gamma-valerolactone 2461.93
    n-decanol 286.59
    triethyl phosphate 172.98
    4-methyl-2-pentanol 319.61
    propionitrile 1206.15
    vinylene carbonate 860.63
    1,1,2-trichlorotrifluoroethane 1081.64
    DMS 383.24
    cumene 176.7
    2-octanol 323.93
    2-hexanone 745.16
    octyl acetate 298.04
    limonene 251.51
    1,2-dimethoxyethane 1483.83
    ethyl orthosilicate 181.05
    tributyl phosphate 170.3
    diacetone alcohol 616.9
    N,N-dimethylaniline 366.44
    acrylonitrile 1240.01
    aniline 860.34
    1,3-propanediol 1146.87
    bromobenzene 866.85
    dibromomethane 2085.83
    1,1,2,2-tetrachloroethane 1826.5
    2-methyl-cyclohexyl acetate 313.64
    tetrabutyl urea 230.71
    diisobutyl methanol 227.34
    2-phenylethanol 550.11
    styrene 422.81
    dioctyl adipate 264.65
    dimethyl sulfate 500.22
    ethyl butyrate 449.48
    methyl lactate 411.49
    butyl lactate 328.27
    diethyl carbonate 251.72
    propanediol butyl ether 590.15
    triethyl orthoformate 284.51
    p-tert-butyltoluene 158.04
    methyl 4-tert-butylbenzoate 376.4
    morpholine 3935.25
    tert-butylamine 660.89
    n-dodecanol 216.17
    dimethoxymethane 1412.73
    ethylene carbonate 782.24
    cyrene 400.03
    2-ethoxyethyl acetate 578.78
    2-ethylhexyl acetate 357.7
    1,2,4-trichlorobenzene 614.14
    4-methylpyridine 1567.59
    dibutyl ether 474.99
    2,6-dimethyl-4-heptanol 227.34
    DEF 1101.58
    dimethyl isosorbide 634.7
    tetrachloroethylene 1489.69
    eugenol 416.07
    triacetin 392.62
    span 80 447.52
    1,4-butanediol 474.32
    1,1-dichloroethane 1727.46
    2-methyl-1-pentanol 472.59
    methyl formate 903.61
    2-methyl-1-butanol 690.4
    n-decane 104.02
    butyronitrile 1095.77
    3,7-dimethyl-1-octanol 307.61
    1-chlorooctane 326.51
    1-chlorotetradecane 122.71
    n-nonane 111.52
    undecane 76.37
    tert-butylcyclohexane 109.86
    cyclooctane 138.74
    cyclopentanol 1225.49
    tetrahydropyran 3206.3
    tert-amyl methyl ether 552.95
    2,5,8-trioxanonane 808.17
    1-hexene 611.05
    2-isopropoxyethanol 730.7
    2,2,2-trifluoroethanol 380.6
    methyl butyrate 712.01

    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