1,20-Eicosanediol

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  • Identifiers

    CAS number
    7735-43-5

    Molecular formula
    C20H42O2

    SMILES
    C(CCCCCCCCCCO)CCCCCCCCCO

    Safety labels

  • Odor profile

    Fragrance
    Waxy 66.85%
    Fatty 48.61%
    Oily 47.19%
    Clean 31.45%
    Floral 31.01%
    Odorless 30.66%
    Sweet 28.59%
    Fruity 27.54%
    Fresh 26.55%
    Woody 24.26%

     

    Flavor
    Waxy 71.41%
    Fatty 48.51%
    Floral 45.38%
    Soapy 42.39%
    Mild 37.4%
    Fat 37.15%
    Flower 35.3%
    Clean 35.26%
    Wax 34.58%
    Rose 33.71%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    7.9

    pKa est.
    8.28 (weak base)

    Molecular weight
    314.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    404°C

    Melting point expt.

    • 111 - 112 °C

    Flash point

    • 210.85 ˚C est.

  • Synonyms

    • 1,20-Eicosanediol
    • Icosane-1,20-diol
    • 7735-43-5
    • DTXSID80399727
    • RefChem:72144
    • DTXCID70350584
    • 974-621-9
    • MFCD01076309
    • 1,20-Icosanediol
    • SCHEMBL54911
    • SCHEMBL1006930
    • SCHEMBL8499390
    • SCHEMBL11144733
    • CHEBI:184409
    • LMFA05000578
    • SY361960
    • WS-03159
    • CS-0091036
    • E74206
    • F604792
    • 7735-43-5

  • Applications

    1,20-Eicosanediol is a long-chain diol used primarily as a polyol building block in polymer synthesis and formulation. In industry, it acts as a reactive diol in polyurethane and polyester systems, enabling high-performance coatings, adhesives, and elastomeric materials, and can also function as an internal plasticizer or chain extender to tune flexibility and processability. It serves as a versatile intermediate for specialty surfactants and lubricants after derivatization. In cosmetics and personal care, it may function as an emollient or conditioning agent in topical formulations. Its long hydrophobic tail and terminal hydroxyl groups also allow it to serve as a processing aid or lubricant base in industrial fluids, contributing to viscosity control and low-temperature performance, subject to formulation design and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 3.91
    methanol 5.2
    isopropanol 5.32
    water 0.02
    ethyl acetate 26.13
    n-propanol 6.51
    acetone 14.29
    n-butanol 9.24
    acetonitrile 4.48
    DMF 35.89
    toluene 9.29
    isobutanol 7.52
    1,4-dioxane 42.25
    methyl acetate 15.33
    THF 174.93
    2-butanone 22.09
    n-pentanol 8.75
    sec-butanol 8.59
    n-hexane 5.92
    ethylene glycol 0.72
    NMP 136.45
    cyclohexane 31.42
    DMSO 83.84
    n-butyl acetate 59.68
    n-octanol 19.25
    chloroform 102.18
    n-propyl acetate 52.08
    acetic acid 13.32
    dichloromethane 89.29
    cyclohexanone 115.14
    propylene glycol 2.45
    isopropyl acetate 36.42
    DMAc 76.71
    2-ethoxyethanol 24.23
    isopentanol 15.09
    n-heptane 15.13
    ethyl formate 14.54
    1,2-dichloroethane 60.16
    n-hexanol 11.98
    2-methoxyethanol 24.59
    isobutyl acetate 39.79
    tetrachloromethane 34.73
    n-pentyl acetate 93.44
    transcutol 201.15
    n-heptanol 18.89
    ethylbenzene 11.76
    MIBK 40.11
    2-propoxyethanol 32.52
    tert-butanol 18.62
    MTBE 28.52
    2-butoxyethanol 54.55
    propionic acid 13.74
    o-xylene 14.09
    formic acid 2.78
    diethyl ether 17.42
    m-xylene 11.18
    p-xylene 16.93
    chlorobenzene 21.24
    dimethyl carbonate 10.4
    n-octane 6.1
    formamide 5.76
    cyclopentanone 129.15
    2-pentanone 28.66
    anisole 26.35
    cyclopentyl methyl ether 84.96
    gamma-butyrolactone 124.39
    1-methoxy-2-propanol 31.37
    pyridine 34.62
    3-pentanone 26.61
    furfural 85.99
    n-dodecane 2.82
    diethylene glycol 12.73
    diisopropyl ether 16.91
    tert-amyl alcohol 21.95
    acetylacetone 46.83
    n-hexadecane 3.47
    acetophenone 42.9
    methyl propionate 21.98
    isopentyl acetate 69.03
    trichloroethylene 110.07
    n-nonanol 21.13
    cyclohexanol 30.57
    benzyl alcohol 15.06
    2-ethylhexanol 22.19
    isooctanol 24.23
    dipropyl ether 65.85
    1,2-dichlorobenzene 38.42
    ethyl lactate 27.12
    propylene carbonate 77.91
    n-methylformamide 10.79
    2-pentanol 10.05
    n-pentane 3.89
    1-propoxy-2-propanol 51.7
    1-methoxy-2-propyl acetate 65.63
    2-(2-methoxypropoxy) propanol 54.96
    mesitylene 13.12
    ε-caprolactone 104.33
    p-cymene 21.15
    epichlorohydrin 108.32
    1,1,1-trichloroethane 77.41
    2-aminoethanol 3.09
    morpholine-4-carbaldehyde 92.45
    sulfolane 302.72
    2,2,4-trimethylpentane 6.28
    2-methyltetrahydrofuran 96.04
    n-hexyl acetate 75.09
    isooctane 4.0
    2-(2-butoxyethoxy)ethanol 71.72
    sec-butyl acetate 44.43
    tert-butyl acetate 74.88
    decalin 11.91
    glycerin 6.67
    diglyme 189.68
    acrylic acid 9.69
    isopropyl myristate 31.0
    n-butyric acid 35.05
    acetyl acetate 23.88
    di(2-ethylhexyl) phthalate 23.58
    ethyl propionate 44.64
    nitromethane 27.94
    1,2-diethoxyethane 80.85
    benzonitrile 19.7
    trioctyl phosphate 20.34
    1-bromopropane 34.05
    gamma-valerolactone 162.82
    n-decanol 13.41
    triethyl phosphate 56.03
    4-methyl-2-pentanol 12.11
    propionitrile 7.78
    vinylene carbonate 49.43
    1,1,2-trichlorotrifluoroethane 98.22
    DMS 34.69
    cumene 12.59
    2-octanol 18.1
    2-hexanone 40.41
    octyl acetate 33.99
    limonene 39.35
    1,2-dimethoxyethane 82.17
    ethyl orthosilicate 59.08
    tributyl phosphate 28.45
    diacetone alcohol 68.47
    N,N-dimethylaniline 27.83
    acrylonitrile 7.86
    aniline 11.93
    1,3-propanediol 7.48
    bromobenzene 26.34
    dibromomethane 59.24
    1,1,2,2-tetrachloroethane 139.19
    2-methyl-cyclohexyl acetate 74.6
    tetrabutyl urea 43.29
    diisobutyl methanol 27.61
    2-phenylethanol 18.31
    styrene 11.78
    dioctyl adipate 54.54
    dimethyl sulfate 38.84
    ethyl butyrate 80.76
    methyl lactate 17.28
    butyl lactate 58.82
    diethyl carbonate 44.08
    propanediol butyl ether 36.74
    triethyl orthoformate 88.15
    p-tert-butyltoluene 21.33
    methyl 4-tert-butylbenzoate 77.77
    morpholine 62.67
    tert-butylamine 14.37
    n-dodecanol 9.6
    dimethoxymethane 29.14
    ethylene carbonate 46.34
    cyrene 61.67
    2-ethoxyethyl acetate 84.04
    2-ethylhexyl acetate 61.45
    1,2,4-trichlorobenzene 47.88
    4-methylpyridine 28.88
    dibutyl ether 61.21
    2,6-dimethyl-4-heptanol 27.61
    DEF 52.76
    dimethyl isosorbide 145.8
    tetrachloroethylene 89.66
    eugenol 54.04
    triacetin 92.39
    span 80 51.93
    1,4-butanediol 3.25
    1,1-dichloroethane 38.17
    2-methyl-1-pentanol 13.46
    methyl formate 8.52
    2-methyl-1-butanol 12.59
    n-decane 7.16
    butyronitrile 11.51
    3,7-dimethyl-1-octanol 25.7
    1-chlorooctane 27.22
    1-chlorotetradecane 7.96
    n-nonane 7.22
    undecane 4.12
    tert-butylcyclohexane 9.61
    cyclooctane 9.99
    cyclopentanol 32.0
    tetrahydropyran 74.5
    tert-amyl methyl ether 35.48
    2,5,8-trioxanonane 113.74
    1-hexene 10.49
    2-isopropoxyethanol 24.48
    2,2,2-trifluoroethanol 9.35
    methyl butyrate 65.2

    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