10-Eicosene

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  • Identifiers

    CAS number
    66587-45-9

    Molecular formula
    C20H40

    SMILES
    CCCCCCCCC/C=C/CCCCCCCCC

    Safety labels

  • Odor profile

    Fragrance
    Waxy 72.57%
    Fatty 42.36%
    Oily 37.37%
    Gassy 22.25%
    Sweet 20.44%
    Odorless 19.97%
    Fishy 19.28%
    Meaty 18.26%
    Savory 15.07%
    Burnt 12.86%

     

    Flavor
    Alkane 47.57%
    Waxy 32.25%
    Delicate 19.82%
    Slightly waxy 19.74%
    Bland 19.59%
    Diterpene 18.73%
    Low 18.65%
    Incense 18.63%
    Oriental 18.6%
    Faint 18.5%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    10.1

    pKa est.
    8.04 (weak base)

    Molecular weight
    280.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    345°C

    Flash point

    • 159.94 ˚C est.

  • Synonyms

    • 10-Eicosene
    • (10E)-icos-10-ene
    • 66587-45-9
    • RefChem:77474
    • 10-Icosene
    • (E)-icos-10-ene
    • eicosen-10
    • SCHEMBL750079
    • SCHEMBL4579432
    • SCHEMBL5983897
    • CHEBI:192067
    • 66587-45-9

  • Applications

    10-Eicosene (CAS 66587-45-9) is a long-chain internal olefin that can serve as a versatile intermediate in organic synthesis and find use in several industrial contexts. In the fragrance industry it may be used as a fragrance intermediate or as a high-boiling diluent/fixative to modulate volatility and help slow fragrance release. In cosmetics and personal care it can act as a precursor to fragrance components or be incorporated into waxy formulations to adjust texture. In polymers and plastics it may be evaluated as a building block for functionalized derivatives or as a component in waxy additives used in processing. In coatings and inks it can serve as a waxy diluent or processing aid to influence rheology and gloss. In industrial manufacturing it may be used as an intermediate for unsaturated derivatives or specialty chemicals, subject to formulation constraints and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 68.54
    methanol 23.21
    isopropanol 131.58
    water 0.0
    ethyl acetate 1167.73
    n-propanol 132.59
    acetone 532.4
    n-butanol 243.74
    acetonitrile 92.23
    DMF 288.02
    toluene 928.47
    isobutanol 176.62
    1,4-dioxane 1232.6
    methyl acetate 423.46
    THF 3289.21
    2-butanone 776.39
    n-pentanol 188.59
    sec-butanol 253.68
    n-hexane 1314.47
    ethylene glycol 2.34
    NMP 821.93
    cyclohexane 4343.01
    DMSO 459.61
    n-butyl acetate 2735.05
    n-octanol 334.38
    chloroform 1688.04
    n-propyl acetate 1205.76
    acetic acid 69.15
    dichloromethane 1639.01
    cyclohexanone 2275.79
    propylene glycol 11.05
    isopropyl acetate 1380.47
    DMAc 609.94
    2-ethoxyethanol 189.17
    isopentanol 423.7
    n-heptane 3254.65
    ethyl formate 209.58
    1,2-dichloroethane 1587.54
    n-hexanol 446.15
    2-methoxyethanol 179.46
    isobutyl acetate 1043.98
    tetrachloromethane 722.03
    n-pentyl acetate 1580.51
    transcutol 1754.35
    n-heptanol 321.6
    ethylbenzene 683.9
    MIBK 1265.37
    2-propoxyethanol 458.95
    tert-butanol 444.15
    MTBE 1722.76
    2-butoxyethanol 405.95
    propionic acid 111.26
    o-xylene 785.88
    formic acid 3.33
    diethyl ether 1818.79
    m-xylene 718.47
    p-xylene 889.81
    chlorobenzene 769.82
    dimethyl carbonate 142.58
    n-octane 728.38
    formamide 8.21
    cyclopentanone 1763.53
    2-pentanone 1278.79
    anisole 810.73
    cyclopentyl methyl ether 2809.31
    gamma-butyrolactone 1122.16
    1-methoxy-2-propanol 281.61
    pyridine 949.05
    3-pentanone 1134.16
    furfural 554.86
    n-dodecane 222.95
    diethylene glycol 79.03
    diisopropyl ether 1465.95
    tert-amyl alcohol 541.13
    acetylacetone 1088.92
    n-hexadecane 286.2
    acetophenone 735.92
    methyl propionate 577.46
    isopentyl acetate 2566.21
    trichloroethylene 1937.73
    n-nonanol 391.73
    cyclohexanol 764.86
    benzyl alcohol 213.19
    2-ethylhexanol 1003.03
    isooctanol 441.34
    dipropyl ether 4836.24
    1,2-dichlorobenzene 885.25
    ethyl lactate 204.16
    propylene carbonate 706.18
    n-methylformamide 51.44
    2-pentanol 401.19
    n-pentane 821.74
    1-propoxy-2-propanol 888.62
    1-methoxy-2-propyl acetate 1502.71
    2-(2-methoxypropoxy) propanol 494.57
    mesitylene 687.74
    ε-caprolactone 1607.93
    p-cymene 996.44
    epichlorohydrin 1461.17
    1,1,1-trichloroethane 2347.32
    2-aminoethanol 12.72
    morpholine-4-carbaldehyde 656.23
    sulfolane 1546.85
    2,2,4-trimethylpentane 472.27
    2-methyltetrahydrofuran 3037.26
    n-hexyl acetate 1492.61
    isooctane 408.87
    2-(2-butoxyethoxy)ethanol 613.25
    sec-butyl acetate 1336.17
    tert-butyl acetate 2152.3
    decalin 1067.89
    glycerin 17.34
    diglyme 1712.71
    acrylic acid 50.99
    isopropyl myristate 872.82
    n-butyric acid 455.24
    acetyl acetate 648.71
    di(2-ethylhexyl) phthalate 309.1
    ethyl propionate 1191.52
    nitromethane 166.45
    1,2-diethoxyethane 2795.12
    benzonitrile 346.37
    trioctyl phosphate 303.74
    1-bromopropane 1971.1
    gamma-valerolactone 1328.49
    n-decanol 295.38
    triethyl phosphate 944.15
    4-methyl-2-pentanol 373.5
    propionitrile 215.6
    vinylene carbonate 377.13
    1,1,2-trichlorotrifluoroethane 490.95
    DMS 560.63
    cumene 542.32
    2-octanol 357.12
    2-hexanone 1169.08
    octyl acetate 783.83
    limonene 2230.05
    1,2-dimethoxyethane 1135.11
    ethyl orthosilicate 1115.52
    tributyl phosphate 438.19
    diacetone alcohol 865.73
    N,N-dimethylaniline 698.95
    acrylonitrile 123.44
    aniline 377.71
    1,3-propanediol 50.0
    bromobenzene 1206.61
    dibromomethane 1480.63
    1,1,2,2-tetrachloroethane 2173.0
    2-methyl-cyclohexyl acetate 1637.44
    tetrabutyl urea 654.98
    diisobutyl methanol 1119.04
    2-phenylethanol 333.87
    styrene 699.36
    dioctyl adipate 917.91
    dimethyl sulfate 269.85
    ethyl butyrate 2906.14
    methyl lactate 108.02
    butyl lactate 515.12
    diethyl carbonate 1290.08
    propanediol butyl ether 190.9
    triethyl orthoformate 2345.26
    p-tert-butyltoluene 963.95
    methyl 4-tert-butylbenzoate 807.71
    morpholine 1292.9
    tert-butylamine 537.44
    n-dodecanol 250.99
    dimethoxymethane 513.81
    ethylene carbonate 463.01
    cyrene 353.9
    2-ethoxyethyl acetate 1181.45
    2-ethylhexyl acetate 2508.99
    1,2,4-trichlorobenzene 922.82
    4-methylpyridine 1003.23
    dibutyl ether 3066.64
    2,6-dimethyl-4-heptanol 1119.04
    DEF 1232.95
    dimethyl isosorbide 1304.58
    tetrachloroethylene 1222.92
    eugenol 392.1
    triacetin 964.18
    span 80 505.92
    1,4-butanediol 19.37
    1,1-dichloroethane 1433.93
    2-methyl-1-pentanol 334.18
    methyl formate 49.5
    2-methyl-1-butanol 333.63
    n-decane 566.31
    butyronitrile 425.07
    3,7-dimethyl-1-octanol 677.07
    1-chlorooctane 1120.16
    1-chlorotetradecane 410.13
    n-nonane 652.66
    undecane 328.6
    tert-butylcyclohexane 810.69
    cyclooctane 1635.35
    cyclopentanol 512.56
    tetrahydropyran 3409.9
    tert-amyl methyl ether 1638.73
    2,5,8-trioxanonane 977.86
    1-hexene 1322.94
    2-isopropoxyethanol 264.45
    2,2,2-trifluoroethanol 24.13
    methyl butyrate 1380.97

    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