1,2-Octadecanediol

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  • Identifiers

    CAS number
    20294-76-2

    Molecular formula
    C18H38O2

    SMILES
    CCCCCCCCCCCCCCCCC(CO)O

    Safety labels

  • Odor profile

    Fragrance
    Waxy 72.07%
    Fatty 55.92%
    Oily 46.48%
    Odorless 35.06%
    Clean 22.75%
    Creamy 21.12%
    Sweet 21.06%
    Soapy 20.84%
    Fishy 19.81%
    Coconut 19.47%

     

    Flavor
    Waxy 53.97%
    Fatty 41.83%
    Mild 39.28%
    Fat 31.54%
    Bland 29.58%
    Oily 29.28%
    Flower 27.78%
    Soapy 26.75%
    Faint 25.55%
    Wax 25.05%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    7.2

    pKa est.
    7.34 (neutral)

    Molecular weight
    286.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    372°C

    Flash point

    • 184.96 ˚C est.

  • Synonyms

    • 1,2-Octadecanediol
    • Octadecane-1,2-diol
    • Stearyl glycol
    • 1,2-Dihydroxyoctadecane
    • 20294-76-2
    • 1,12-Dihydroxyoctadecane
    • UNII-9J9GD77RJI
    • octadecylene glycol
    • 9J9GD77RJI
    • EINECS 243-711-3
    • NSC 71534
    • NSC-71534
    • AI3-14194
    • CHEBI:84956
    • RefChem:72112
    • STEARYL GLYCOL [INCI]
    • XWAMHGPDZOVVND-UHFFFAOYSA-N
    • O-Hexadecylethanediol
    • NCIOpen2_003464
    • SCHEMBL439709
    • SCHEMBL28022421
    • DTXSID101021743
    • NSC71534
    • NS00014127
    • Q27158218
    • 20294-76-2

  • Applications

    1,2-Octadecanediol (CAS number: 20294-76-2) is used as an emollient and skin-conditioning agent in cosmetics and personal care; as a diol chain extender in the synthesis of polyesters and polyurethanes; as a component in coatings and inks, acting as a plasticizer or linking co-monomer; as a building block for adhesives and polymer networks; and as a lubricant or processing aid in industrial manufacturing.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 36.48
    methanol 29.57
    isopropanol 55.19
    water 0.01
    ethyl acetate 168.1
    n-propanol 54.6
    acetone 89.98
    n-butanol 79.29
    acetonitrile 25.88
    DMF 138.32
    toluene 47.38
    isobutanol 62.09
    1,4-dioxane 187.97
    methyl acetate 84.76
    THF 694.12
    2-butanone 132.19
    n-pentanol 62.39
    sec-butanol 72.31
    n-hexane 35.41
    ethylene glycol 2.46
    NMP 336.41
    cyclohexane 153.36
    DMSO 297.15
    n-butyl acetate 331.88
    n-octanol 90.13
    chloroform 308.86
    n-propyl acetate 275.07
    acetic acid 44.47
    dichloromethane 291.15
    cyclohexanone 494.06
    propylene glycol 10.7
    isopropyl acetate 206.84
    DMAc 225.94
    2-ethoxyethanol 124.22
    isopentanol 116.83
    n-heptane 77.71
    ethyl formate 71.96
    1,2-dichloroethane 253.12
    n-hexanol 82.18
    2-methoxyethanol 128.29
    isobutyl acetate 201.6
    tetrachloromethane 109.45
    n-pentyl acetate 391.72
    transcutol 716.41
    n-heptanol 96.27
    ethylbenzene 52.07
    MIBK 216.89
    2-propoxyethanol 160.73
    tert-butanol 141.57
    MTBE 195.42
    2-butoxyethanol 219.41
    propionic acid 56.06
    o-xylene 59.05
    formic acid 6.56
    diethyl ether 137.57
    m-xylene 51.82
    p-xylene 75.85
    chlorobenzene 90.03
    dimethyl carbonate 36.12
    n-octane 27.01
    formamide 15.16
    cyclopentanone 487.84
    2-pentanone 187.95
    anisole 108.21
    cyclopentyl methyl ether 350.16
    gamma-butyrolactone 403.58
    1-methoxy-2-propanol 158.49
    pyridine 147.67
    3-pentanone 139.77
    furfural 256.13
    n-dodecane 11.17
    diethylene glycol 52.27
    diisopropyl ether 99.53
    tert-amyl alcohol 140.43
    acetylacetone 219.63
    n-hexadecane 13.84
    acetophenone 154.23
    methyl propionate 113.07
    isopentyl acetate 331.7
    trichloroethylene 380.09
    n-nonanol 91.99
    cyclohexanol 184.33
    benzyl alcohol 64.85
    2-ethylhexanol 119.46
    isooctanol 116.12
    dipropyl ether 334.15
    1,2-dichlorobenzene 133.51
    ethyl lactate 93.57
    propylene carbonate 249.48
    n-methylformamide 41.21
    2-pentanol 84.62
    n-pentane 25.03
    1-propoxy-2-propanol 243.93
    1-methoxy-2-propyl acetate 257.59
    2-(2-methoxypropoxy) propanol 156.71
    mesitylene 54.81
    ε-caprolactone 415.39
    p-cymene 80.04
    epichlorohydrin 395.96
    1,1,1-trichloroethane 298.25
    2-aminoethanol 13.51
    morpholine-4-carbaldehyde 277.35
    sulfolane 774.29
    2,2,4-trimethylpentane 28.59
    2-methyltetrahydrofuran 425.44
    n-hexyl acetate 304.88
    isooctane 19.69
    2-(2-butoxyethoxy)ethanol 239.87
    sec-butyl acetate 226.63
    tert-butyl acetate 331.38
    decalin 48.12
    glycerin 21.23
    diglyme 563.15
    acrylic acid 31.01
    isopropyl myristate 115.93
    n-butyric acid 184.36
    acetyl acetate 107.37
    di(2-ethylhexyl) phthalate 70.52
    ethyl propionate 207.67
    nitromethane 103.91
    1,2-diethoxyethane 366.4
    benzonitrile 86.03
    trioctyl phosphate 69.29
    1-bromopropane 177.61
    gamma-valerolactone 543.98
    n-decanol 58.39
    triethyl phosphate 155.75
    4-methyl-2-pentanol 78.07
    propionitrile 46.02
    vinylene carbonate 150.58
    1,1,2-trichlorotrifluoroethane 271.3
    DMS 118.6
    cumene 51.88
    2-octanol 91.92
    2-hexanone 216.71
    octyl acetate 127.18
    limonene 156.73
    1,2-dimethoxyethane 339.97
    ethyl orthosilicate 170.64
    tributyl phosphate 94.3
    diacetone alcohol 280.25
    N,N-dimethylaniline 96.29
    acrylonitrile 39.89
    aniline 56.2
    1,3-propanediol 43.46
    bromobenzene 108.82
    dibromomethane 214.59
    1,1,2,2-tetrachloroethane 452.95
    2-methyl-cyclohexyl acetate 258.29
    tetrabutyl urea 137.84
    diisobutyl methanol 119.58
    2-phenylethanol 77.56
    styrene 54.23
    dioctyl adipate 174.56
    dimethyl sulfate 99.52
    ethyl butyrate 353.01
    methyl lactate 57.21
    butyl lactate 211.78
    diethyl carbonate 164.56
    propanediol butyl ether 140.23
    triethyl orthoformate 298.01
    p-tert-butyltoluene 79.45
    methyl 4-tert-butylbenzoate 213.8
    morpholine 292.87
    tert-butylamine 108.3
    n-dodecanol 41.33
    dimethoxymethane 128.88
    ethylene carbonate 160.95
    cyrene 163.89
    2-ethoxyethyl acetate 314.75
    2-ethylhexyl acetate 291.26
    1,2,4-trichlorobenzene 153.13
    4-methylpyridine 139.79
    dibutyl ether 285.11
    2,6-dimethyl-4-heptanol 119.58
    DEF 242.81
    dimethyl isosorbide 371.7
    tetrachloroethylene 287.08
    eugenol 148.43
    triacetin 264.11
    span 80 159.14
    1,4-butanediol 16.81
    1,1-dichloroethane 188.52
    2-methyl-1-pentanol 86.66
    methyl formate 30.88
    2-methyl-1-butanol 93.73
    n-decane 30.47
    butyronitrile 83.03
    3,7-dimethyl-1-octanol 114.17
    1-chlorooctane 117.5
    1-chlorotetradecane 32.89
    n-nonane 31.68
    undecane 16.72
    tert-butylcyclohexane 40.29
    cyclooctane 43.89
    cyclopentanol 163.25
    tetrahydropyran 403.07
    tert-amyl methyl ether 179.4
    2,5,8-trioxanonane 305.94
    1-hexene 72.23
    2-isopropoxyethanol 126.72
    2,2,2-trifluoroethanol 24.95
    methyl butyrate 304.32

    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