Octyl Stearate

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  • Identifiers

    CAS number
    109-36-4

    Molecular formula
    C26H52O2

    SMILES
    CCCCCCCCCCCCCCCCCC(=O)OCCCCCCCC

    Safety labels

  • Odor profile

    Fragrance
    Waxy 73.86%
    Fatty 67.9%
    Oily 61.68%
    Odorless 31.54%
    Sweet 29.52%
    Fruity 29.37%
    Creamy 28.5%
    Dairy 23.22%
    Soapy 20.94%
    Clean 20.91%

     

    Flavor
    Waxy 65.59%
    Fatty 49.61%
    Mild 44.41%
    Oily 44.34%
    Fat 34.48%
    Soapy 34.34%
    Coconut 33.3%
    Bland 30.89%
    Faint 29.53%
    Alkane 27.92%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    11.9

    pKa est.
    7.88 (neutral)

    Molecular weight
    396.7 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    447°C

    Flash point

    • 198.74 ˚C est.

  • Synonyms

    • OCTYL STEARATE
    • Octyl octadecanoate
    • Octadecanoic acid, octyl ester
    • Stearic acid, octyl ester
    • UNII-772Y4UFC8B
    • 772Y4UFC8B
    • n-octyl stearate
    • EINECS 203-666-2
    • AI3-31618
    • NJLUB OS
    • DTXSID1059367
    • OCTYL stearic acid
    • Octyl octadecanoic acid
    • RefChem:167895
    • DTXCID0033120
    • 203-666-2
    • IIGMITQLXAGZTL-UHFFFAOYSA-N
    • 109-36-4
    • SCHEMBL33697
    • DB-255872
    • NS00078892
    • G83761
    • Q27266533
    • 109-36-4

  • Applications

    Octyl Stearate (CAS 109-36-4) is primarily used as an emollient in cosmetics and personal care, providing slip and moisture retention. It commonly serves as a lipophilic solvent/vehicle for fragrance ingredients in perfumery and as a carrier for lipophilic actives in topical pharmaceutical and skincare formulations. In polymer and coatings applications it functions as a processing aid and plasticizer, helping to improve flexibility of films and reduce tack in coatings and inks. It is also employed as a lipophilic solvent in household cleaning formulations and other industrial cleaning products.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 14.98
    methanol 20.48
    isopropanol 21.42
    water 0.1
    ethyl acetate 318.26
    n-propanol 31.17
    acetone 144.75
    n-butanol 43.65
    acetonitrile 55.77
    DMF 229.66
    toluene 120.69
    isobutanol 40.51
    1,4-dioxane 266.4
    methyl acetate 173.07
    THF 707.2
    2-butanone 241.08
    n-pentanol 38.6
    sec-butanol 50.05
    n-hexane 38.21
    ethylene glycol 2.34
    NMP 950.87
    cyclohexane 267.44
    DMSO 298.39
    n-butyl acetate 390.73
    n-octanol 96.8
    chloroform 941.98
    n-propyl acetate 409.67
    acetic acid 76.94
    dichloromethane 1055.27
    cyclohexanone 1006.47
    propylene glycol 6.95
    isopropyl acetate 341.57
    DMAc 607.1
    2-ethoxyethanol 95.98
    isopentanol 72.88
    n-heptane 49.66
    ethyl formate 116.17
    1,2-dichloroethane 654.77
    n-hexanol 42.11
    2-methoxyethanol 86.65
    isobutyl acetate 282.57
    tetrachloromethane 284.17
    n-pentyl acetate 750.29
    transcutol 761.72
    n-heptanol 75.6
    ethylbenzene 105.32
    MIBK 315.7
    2-propoxyethanol 108.02
    tert-butanol 66.07
    MTBE 190.63
    2-butoxyethanol 202.37
    propionic acid 88.56
    o-xylene 137.2
    formic acid 15.11
    diethyl ether 141.72
    m-xylene 106.9
    p-xylene 177.19
    chlorobenzene 284.92
    dimethyl carbonate 80.54
    n-octane 28.19
    formamide 35.93
    cyclopentanone 859.61
    2-pentanone 284.17
    anisole 219.98
    cyclopentyl methyl ether 495.68
    gamma-butyrolactone 775.84
    1-methoxy-2-propanol 108.73
    pyridine 350.71
    3-pentanone 281.17
    furfural 507.53
    n-dodecane 13.66
    diethylene glycol 35.03
    diisopropyl ether 107.98
    tert-amyl alcohol 112.98
    acetylacetone 426.4
    n-hexadecane 17.6
    acetophenone 341.59
    methyl propionate 215.43
    isopentyl acetate 415.57
    trichloroethylene 1135.04
    n-nonanol 102.41
    cyclohexanol 190.14
    benzyl alcohol 94.36
    2-ethylhexanol 85.6
    isooctanol 95.16
    dipropyl ether 246.39
    1,2-dichlorobenzene 436.41
    ethyl lactate 122.64
    propylene carbonate 483.3
    n-methylformamide 76.9
    2-pentanol 50.37
    n-pentane 22.57
    1-propoxy-2-propanol 162.17
    1-methoxy-2-propyl acetate 353.43
    2-(2-methoxypropoxy) propanol 209.41
    mesitylene 101.8
    ε-caprolactone 884.63
    p-cymene 109.44
    epichlorohydrin 758.95
    1,1,1-trichloroethane 858.33
    2-aminoethanol 9.84
    morpholine-4-carbaldehyde 515.66
    sulfolane 1421.47
    2,2,4-trimethylpentane 35.48
    2-methyltetrahydrofuran 623.48
    n-hexyl acetate 593.34
    isooctane 17.82
    2-(2-butoxyethoxy)ethanol 263.78
    sec-butyl acetate 358.72
    tert-butyl acetate 519.62
    decalin 80.52
    glycerin 15.72
    diglyme 779.73
    acrylic acid 61.23
    isopropyl myristate 186.73
    n-butyric acid 226.22
    acetyl acetate 253.05
    di(2-ethylhexyl) phthalate 129.5
    ethyl propionate 369.15
    nitromethane 231.62
    1,2-diethoxyethane 444.96
    benzonitrile 169.15
    trioctyl phosphate 100.03
    1-bromopropane 339.92
    gamma-valerolactone 1041.41
    n-decanol 62.27
    triethyl phosphate 259.5
    4-methyl-2-pentanol 51.77
    propionitrile 75.87
    vinylene carbonate 361.94
    1,1,2-trichlorotrifluoroethane 449.43
    DMS 265.29
    cumene 86.53
    2-octanol 93.38
    2-hexanone 307.61
    octyl acetate 218.3
    limonene 219.66
    1,2-dimethoxyethane 392.93
    ethyl orthosilicate 256.23
    tributyl phosphate 150.6
    diacetone alcohol 322.77
    N,N-dimethylaniline 169.7
    acrylonitrile 77.77
    aniline 110.86
    1,3-propanediol 24.76
    bromobenzene 385.55
    dibromomethane 633.1
    1,1,2,2-tetrachloroethane 1129.92
    2-methyl-cyclohexyl acetate 401.63
    tetrabutyl urea 248.85
    diisobutyl methanol 88.08
    2-phenylethanol 90.01
    styrene 123.42
    dioctyl adipate 325.06
    dimethyl sulfate 230.67
    ethyl butyrate 474.82
    methyl lactate 79.45
    butyl lactate 339.77
    diethyl carbonate 250.52
    propanediol butyl ether 141.73
    triethyl orthoformate 383.56
    p-tert-butyltoluene 99.11
    methyl 4-tert-butylbenzoate 430.65
    morpholine 337.01
    tert-butylamine 54.38
    n-dodecanol 43.41
    dimethoxymethane 156.46
    ethylene carbonate 342.43
    cyrene 243.45
    2-ethoxyethyl acetate 622.72
    2-ethylhexyl acetate 393.46
    1,2,4-trichlorobenzene 518.14
    4-methylpyridine 356.71
    dibutyl ether 360.53
    2,6-dimethyl-4-heptanol 88.08
    DEF 445.39
    dimethyl isosorbide 580.14
    tetrachloroethylene 724.86
    eugenol 268.17
    triacetin 614.27
    span 80 220.99
    1,4-butanediol 12.66
    1,1-dichloroethane 478.76
    2-methyl-1-pentanol 68.02
    methyl formate 61.66
    2-methyl-1-butanol 69.19
    n-decane 36.68
    butyronitrile 99.37
    3,7-dimethyl-1-octanol 115.13
    1-chlorooctane 173.48
    1-chlorotetradecane 48.13
    n-nonane 36.47
    undecane 20.38
    tert-butylcyclohexane 51.73
    cyclooctane 66.12
    cyclopentanol 164.0
    tetrahydropyran 497.81
    tert-amyl methyl ether 236.86
    2,5,8-trioxanonane 391.46
    1-hexene 76.96
    2-isopropoxyethanol 104.65
    2,2,2-trifluoroethanol 58.68
    methyl butyrate 517.4

    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