Octadecanoic acid, 12-hydroxy-, octadecyl ester

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  • Identifiers

    CAS number
    36826-83-2

    Molecular formula
    C36H72O3

    SMILES
    CCCCCCCCCCCCCCCCCCOC(=O)CCCCCCCCCCC(CCCCCC)O

    Safety labels

  • Odor profile

    Fragrance
    Waxy 64.77%
    Fatty 60.98%
    Oily 57.25%
    Odorless 33.0%
    Fruity 32.95%
    Sweet 24.85%
    Creamy 23.96%
    Floral 22.44%
    Clean 22.13%
    Dairy 20.87%

     

    Flavor
    Waxy 55.15%
    Fatty 45.17%
    Mild 41.6%
    Oily 37.46%
    Bland 33.69%
    Fat 31.78%
    Faint 30.6%
    Soapy 27.76%
    Coconut 25.92%
    Slightly waxy 25.4%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    15.5

    pKa est.
    9.46 (weak base)

    Molecular weight
    553.0 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    667°C

    Flash point

    • 254.45 ˚C est.

  • Synonyms

    • Stearyl 12-hydroxystearate
    • Octadecyl 12-hydroxyoctadecanoate
    • EINECS 253-231-6
    • Octadecanoic acid, 12-hydroxy-, octadecyl ester
    • DTXSID60885653
    • RefChem:167624
    • DTXCID901025018
    • 253-231-6
    • 36826-83-2
    • SCHEMBL294266
    • UGJBFCXWPCFKSG-UHFFFAOYSA-N
    • NS00057443
    • 36826-83-2

  • Applications

    Octadecanoic acid, 12-hydroxy-, octadecyl ester (CAS 36826-83-2) is a long-chain fatty acid ester commonly used as a waxy thickener and structuring agent in cosmetics and personal care formulations, including lip balms, creams, and solid cleansing bars. It also serves as a lubricant and processing aid in industrial manufacturing and plastics, providing slip and compatibility as a fatty ester-based additive. In coatings and inks, it functions as a wax component to improve gloss, slip, and mar resistance. In household products and detergents, it can act as an emollient and texture modifier, contributing to feel and texture. Its use is formulation-dependent and subject to local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2.2
    methanol 3.03
    isopropanol 2.17
    water 0.03
    ethyl acetate 40.14
    n-propanol 4.04
    acetone 19.35
    n-butanol 4.82
    acetonitrile 5.7
    DMF 38.01
    toluene 20.82
    isobutanol 4.31
    1,4-dioxane 44.63
    methyl acetate 24.0
    THF 144.11
    2-butanone 34.56
    n-pentanol 5.94
    sec-butanol 5.61
    n-hexane 5.28
    ethylene glycol 0.4
    NMP 243.76
    cyclohexane 26.31
    DMSO 55.58
    n-butyl acetate 56.15
    n-octanol 16.92
    chloroform 182.32
    n-propyl acetate 52.09
    acetic acid 13.31
    dichloromethane 177.68
    cyclohexanone 160.1
    propylene glycol 1.17
    isopropyl acetate 45.37
    DMAc 140.62
    2-ethoxyethanol 16.39
    isopentanol 7.44
    n-heptane 6.99
    ethyl formate 17.45
    1,2-dichloroethane 95.51
    n-hexanol 6.33
    2-methoxyethanol 13.2
    isobutyl acetate 38.46
    tetrachloromethane 44.29
    n-pentyl acetate 120.1
    transcutol 166.04
    n-heptanol 13.1
    ethylbenzene 19.92
    MIBK 39.25
    2-propoxyethanol 20.59
    tert-butanol 6.16
    MTBE 24.1
    2-butoxyethanol 40.12
    propionic acid 12.89
    o-xylene 24.74
    formic acid 3.3
    diethyl ether 15.4
    m-xylene 18.32
    p-xylene 28.93
    chlorobenzene 48.21
    dimethyl carbonate 17.61
    n-octane 4.34
    formamide 6.36
    cyclopentanone 160.95
    2-pentanone 36.03
    anisole 37.12
    cyclopentyl methyl ether 86.43
    gamma-butyrolactone 163.09
    1-methoxy-2-propanol 16.74
    pyridine 60.43
    3-pentanone 42.41
    furfural 115.7
    n-dodecane 2.3
    diethylene glycol 6.98
    diisopropyl ether 13.62
    tert-amyl alcohol 13.64
    acetylacetone 72.41
    n-hexadecane 2.86
    acetophenone 62.68
    methyl propionate 34.15
    isopentyl acetate 64.56
    trichloroethylene 204.88
    n-nonanol 19.75
    cyclohexanol 21.84
    benzyl alcohol 15.86
    2-ethylhexanol 13.53
    isooctanol 16.79
    dipropyl ether 37.48
    1,2-dichlorobenzene 76.78
    ethyl lactate 23.05
    propylene carbonate 108.44
    n-methylformamide 12.15
    2-pentanol 5.54
    n-pentane 2.71
    1-propoxy-2-propanol 29.58
    1-methoxy-2-propyl acetate 70.82
    2-(2-methoxypropoxy) propanol 56.66
    mesitylene 16.92
    ε-caprolactone 165.24
    p-cymene 20.93
    epichlorohydrin 146.36
    1,1,1-trichloroethane 131.91
    2-aminoethanol 1.62
    morpholine-4-carbaldehyde 105.94
    sulfolane 352.32
    2,2,4-trimethylpentane 5.72
    2-methyltetrahydrofuran 104.73
    n-hexyl acetate 108.04
    isooctane 2.45
    2-(2-butoxyethoxy)ethanol 60.68
    sec-butyl acetate 51.39
    tert-butyl acetate 81.9
    decalin 12.48
    glycerin 3.11
    diglyme 175.84
    acrylic acid 10.44
    isopropyl myristate 34.01
    n-butyric acid 30.59
    acetyl acetate 41.22
    di(2-ethylhexyl) phthalate 29.92
    ethyl propionate 54.16
    nitromethane 39.63
    1,2-diethoxyethane 78.3
    benzonitrile 26.16
    trioctyl phosphate 20.65
    1-bromopropane 44.88
    gamma-valerolactone 215.06
    n-decanol 11.48
    triethyl phosphate 59.8
    4-methyl-2-pentanol 6.44
    propionitrile 8.81
    vinylene carbonate 79.9
    1,1,2-trichlorotrifluoroethane 104.98
    DMS 53.05
    cumene 15.94
    2-octanol 14.97
    2-hexanone 45.45
    octyl acetate 40.0
    limonene 38.21
    1,2-dimethoxyethane 62.76
    ethyl orthosilicate 58.14
    tributyl phosphate 31.06
    diacetone alcohol 52.85
    N,N-dimethylaniline 35.24
    acrylonitrile 9.84
    aniline 16.4
    1,3-propanediol 3.43
    bromobenzene 67.11
    dibromomethane 101.0
    1,1,2,2-tetrachloroethane 211.11
    2-methyl-cyclohexyl acetate 81.88
    tetrabutyl urea 52.17
    diisobutyl methanol 13.54
    2-phenylethanol 16.66
    styrene 21.03
    dioctyl adipate 66.72
    dimethyl sulfate 61.42
    ethyl butyrate 76.91
    methyl lactate 16.99
    butyl lactate 69.41
    diethyl carbonate 45.41
    propanediol butyl ether 29.32
    triethyl orthoformate 80.69
    p-tert-butyltoluene 19.91
    methyl 4-tert-butylbenzoate 105.73
    morpholine 52.28
    tert-butylamine 5.24
    n-dodecanol 7.56
    dimethoxymethane 27.08
    ethylene carbonate 66.78
    cyrene 67.21
    2-ethoxyethyl acetate 125.34
    2-ethylhexyl acetate 64.65
    1,2,4-trichlorobenzene 103.49
    4-methylpyridine 54.84
    dibutyl ether 55.2
    2,6-dimethyl-4-heptanol 13.54
    DEF 65.03
    dimethyl isosorbide 171.22
    tetrachloroethylene 124.84
    eugenol 65.18
    triacetin 139.84
    span 80 51.19
    1,4-butanediol 2.02
    1,1-dichloroethane 64.04
    2-methyl-1-pentanol 10.24
    methyl formate 11.28
    2-methyl-1-butanol 8.23
    n-decane 6.12
    butyronitrile 10.63
    3,7-dimethyl-1-octanol 20.91
    1-chlorooctane 28.26
    1-chlorotetradecane 7.78
    n-nonane 5.69
    undecane 3.42
    tert-butylcyclohexane 8.43
    cyclooctane 8.62
    cyclopentanol 19.94
    tetrahydropyran 69.75
    tert-amyl methyl ether 37.09
    2,5,8-trioxanonane 95.33
    1-hexene 10.74
    2-isopropoxyethanol 16.36
    2,2,2-trifluoroethanol 11.06
    methyl butyrate 73.6

    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