Lauryl trisiloxane

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  • Identifiers

    CAS number
    139614-44-1

    Molecular formula
    C19H46O2Si3

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

    Safety labels

  • Odor profile

    Fragrance
    Floral 52.11%
    Woody 43.61%
    Waxy 40.11%
    Fresh 37.97%
    Citrus 33.67%
    Green 31.54%
    Sweet 29.54%
    Oily 28.86%
    Rose 27.87%
    Lily 27.54%

     

    Flavor
    Mild 36.42%
    Green 35.51%
    Waxy 30.86%
    Oily 28.33%
    Floral 27.44%
    Lily 24.6%
    Earthy 23.27%
    Rose acetate 22.57%
    Delicate 21.75%
    Yeasty 21.67%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    8.87 (weak base)

    Molecular weight
    390.8 g/mol

    Flash point

    • 127.41 ˚C est.

  • Synonyms

    • Lauryl trisiloxane
    • 139614-44-1
    • 3-Dodecyl-1,1,1,3,5,5,5-heptamethyltrisiloxane
    • Lauryl trimethicone
    • Dodecylheptamethyltrisiloxide
    • 5OHO78HI1D
    • Tm 121
    • Bis(trimethylsiloxy)dodecylmethylsilane
    • Trisiloxane, 3-dodecyl-1,1,1,3,5,5,5-heptamethyl-
    • LAURYL METHICONE
    • UNII-5OHO78HI1D
    • orb1705508
    • SCHEMBL1959828
    • ANXXYABAFAQBOT-UHFFFAOYSA-N
    • MFCD09953854
    • AKOS030529861
    • dodecyl-methyl-bis(trimethylsilyloxy)silane
    • Q27262645
    • 139614-44-1

  • Applications

    Lauryl trisiloxane (CAS 139614-44-1) is typically used as a nonionic siloxane-based surfactant and conditioning/processing aid in a range of formulations. In cosmetics and personal care it acts as a conditioning emollient, slip agent and surface-active component; in household and cleaning products it serves as a wetting agent, emulsifier and surfactant to improve spreading and formulation stability; in industrial manufacturing it can function as a processing aid, lubricant or slip additive in coatings, inks and polymer processing to improve flow, leveling and surface properties; it may also be evaluated as an adjuvant in agricultural formulations to enhance spray deposition and coverage.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 556.47
    methanol 379.8
    isopropanol 527.78
    water 0.61
    ethyl acetate 865.67
    n-propanol 702.86
    acetone 843.77
    n-butanol 698.64
    acetonitrile 230.99
    DMF 1083.26
    toluene 856.14
    isobutanol 593.19
    1,4-dioxane 1222.87
    methyl acetate 568.6
    THF 3502.51
    2-butanone 954.65
    n-pentanol 567.64
    sec-butanol 719.79
    n-hexane 582.18
    ethylene glycol 50.81
    NMP 2094.81
    cyclohexane 1331.81
    DMSO 1025.11
    n-butyl acetate 986.45
    n-octanol 651.46
    chloroform 2000.2
    n-propyl acetate 835.18
    acetic acid 377.16
    dichloromethane 1719.24
    cyclohexanone 2351.75
    propylene glycol 166.13
    isopropyl acetate 840.85
    DMAc 1220.4
    2-ethoxyethanol 500.2
    isopentanol 590.14
    n-heptane 598.8
    ethyl formate 438.28
    1,2-dichloroethane 1107.46
    n-hexanol 727.67
    2-methoxyethanol 645.16
    isobutyl acetate 727.06
    tetrachloromethane 486.4
    n-pentyl acetate 1287.27
    transcutol 1281.37
    n-heptanol 600.33
    ethylbenzene 478.56
    MIBK 816.12
    2-propoxyethanol 841.51
    tert-butanol 647.2
    MTBE 862.77
    2-butoxyethanol 743.4
    propionic acid 486.46
    o-xylene 499.19
    formic acid 80.15
    diethyl ether 1049.38
    m-xylene 588.74
    p-xylene 606.45
    chlorobenzene 839.73
    dimethyl carbonate 300.22
    n-octane 255.72
    formamide 136.52
    cyclopentanone 2431.66
    2-pentanone 1069.87
    anisole 653.58
    cyclopentyl methyl ether 2215.78
    gamma-butyrolactone 2055.92
    1-methoxy-2-propanol 755.63
    pyridine 1181.99
    3-pentanone 895.93
    furfural 1124.48
    n-dodecane 128.65
    diethylene glycol 308.95
    diisopropyl ether 565.19
    tert-amyl alcohol 719.52
    acetylacetone 955.14
    n-hexadecane 150.38
    acetophenone 687.74
    methyl propionate 763.95
    isopentyl acetate 898.85
    trichloroethylene 1615.89
    n-nonanol 603.61
    cyclohexanol 1235.68
    benzyl alcohol 451.51
    2-ethylhexanol 604.21
    isooctanol 533.36
    dipropyl ether 1175.73
    1,2-dichlorobenzene 716.77
    ethyl lactate 326.11
    propylene carbonate 1156.86
    n-methylformamide 418.07
    2-pentanol 638.87
    n-pentane 484.69
    1-propoxy-2-propanol 849.98
    1-methoxy-2-propyl acetate 847.57
    2-(2-methoxypropoxy) propanol 464.17
    mesitylene 419.08
    ε-caprolactone 1902.59
    p-cymene 382.02
    epichlorohydrin 1548.69
    1,1,1-trichloroethane 1151.1
    2-aminoethanol 197.68
    morpholine-4-carbaldehyde 1301.55
    sulfolane 2380.7
    2,2,4-trimethylpentane 225.75
    2-methyltetrahydrofuran 2398.79
    n-hexyl acetate 1436.3
    isooctane 166.65
    2-(2-butoxyethoxy)ethanol 715.8
    sec-butyl acetate 684.29
    tert-butyl acetate 988.42
    decalin 389.61
    glycerin 185.87
    diglyme 1280.54
    acrylic acid 300.15
    isopropyl myristate 556.47
    n-butyric acid 899.02
    acetyl acetate 500.77
    di(2-ethylhexyl) phthalate 392.52
    ethyl propionate 716.85
    nitromethane 534.01
    1,2-diethoxyethane 900.2
    benzonitrile 539.68
    trioctyl phosphate 369.31
    1-bromopropane 1161.36
    gamma-valerolactone 2241.28
    n-decanol 418.19
    triethyl phosphate 419.46
    4-methyl-2-pentanol 432.01
    propionitrile 397.41
    vinylene carbonate 806.56
    1,1,2-trichlorotrifluoroethane 891.63
    DMS 574.32
    cumene 342.93
    2-octanol 560.48
    2-hexanone 890.15
    octyl acetate 695.83
    limonene 740.09
    1,2-dimethoxyethane 959.82
    ethyl orthosilicate 449.9
    tributyl phosphate 408.58
    diacetone alcohol 735.38
    N,N-dimethylaniline 542.99
    acrylonitrile 318.12
    aniline 623.89
    1,3-propanediol 326.69
    bromobenzene 1003.93
    dibromomethane 1480.17
    1,1,2,2-tetrachloroethane 1608.99
    2-methyl-cyclohexyl acetate 868.61
    tetrabutyl urea 594.78
    diisobutyl methanol 410.31
    2-phenylethanol 533.83
    styrene 544.85
    dioctyl adipate 662.17
    dimethyl sulfate 478.11
    ethyl butyrate 844.31
    methyl lactate 334.75
    butyl lactate 760.72
    diethyl carbonate 472.76
    propanediol butyl ether 625.37
    triethyl orthoformate 729.53
    p-tert-butyltoluene 407.02
    methyl 4-tert-butylbenzoate 755.68
    morpholine 1552.53
    tert-butylamine 557.86
    n-dodecanol 310.17
    dimethoxymethane 985.57
    ethylene carbonate 834.73
    cyrene 568.91
    2-ethoxyethyl acetate 1041.78
    2-ethylhexyl acetate 892.32
    1,2,4-trichlorobenzene 871.23
    4-methylpyridine 1191.15
    dibutyl ether 977.84
    2,6-dimethyl-4-heptanol 410.31
    DEF 1092.53
    dimethyl isosorbide 1023.0
    tetrachloroethylene 985.55
    eugenol 556.24
    triacetin 947.49
    span 80 700.87
    1,4-butanediol 162.35
    1,1-dichloroethane 1043.51
    2-methyl-1-pentanol 495.59
    methyl formate 299.74
    2-methyl-1-butanol 636.69
    n-decane 278.49
    butyronitrile 545.43
    3,7-dimethyl-1-octanol 536.58
    1-chlorooctane 695.15
    1-chlorotetradecane 257.02
    n-nonane 296.71
    undecane 177.44
    tert-butylcyclohexane 325.8
    cyclooctane 534.03
    cyclopentanol 1203.34
    tetrahydropyran 2439.96
    tert-amyl methyl ether 885.2
    2,5,8-trioxanonane 753.42
    1-hexene 877.7
    2-isopropoxyethanol 464.74
    2,2,2-trifluoroethanol 154.48
    methyl butyrate 876.52

    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