1-Eicosene

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  • Identifiers

    CAS number
    27400-78-8

    Molecular formula
    C20H40

    SMILES
    CCCCCCCCCCCCCCCCCCC=C

    Safety labels

    Health Hazard
    Health

    Retention indicies (RI)

    • DB5: 1994.0

  • Odor profile

    Waxy 73.59%
    Fatty 43.21%
    Oily 34.67%
    Sweet 27.23%
    Gassy 23.28%
    Meaty 22.19%
    Fishy 21.41%
    Odorless 19.64%
    Clean 16.81%
    Savory 16.78%

    Scent© AI

  • Properties

    XLogP3-AA
    11.1

    Molecular weight
    280.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    349°C

    Flash point est.
    162.63 ˚C

  • Synonyms

    • 1-EICOSENE
    • Icos-1-ene
    • 3452-07-1
    • Eicosene
    • Cetyl ethylene
    • 1-Icosene
    • .alpha.-Eicosene
    • alpha-Eicosene
    • Methylene nonadecane
    • Neodene 20
    • 27400-78-8
    • 6BHH7ZD637
    • NSC 77138
    • NSC-77138
    • NEODENE C 20
    • UNII-6BHH7ZD637
    • DTXSID1029257
    • EINECS 222-374-6
    • AI3-36496
    • EC 222-374-6
    • Arachidene
    • Arachydene
    • MFCD00009013
    • cosen
    • Alkenes, C20-24 alpha-
    • 1-eicosadecene
    • 1-icosadecene
    • Eicos-1-ene
    • .|A.-Eicosene
    • 52439-84-6
    • 1-Eicosene, tech grade
    • 1-Eicosene, technical grade
    • DTXCID609257
    • 1-Eicosene, analytical standard
    • CHEBI:198481
    • NSC77138
    • 1-Eicosene, technical grade, 80%
    • EINECS 300-202-1
    • LMFA11000314
    • AKOS015913014
    • AS-75616
    • DB-048635
    • CS-0204584
    • E0005
    • E0774
    • NS00008143
    • D90564
    • EC 300-202-1
    • Q2419305
    • 222-374-6
    • 27323-11-1

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 45.3
    methanol 16.27
    isopropanol 96.06
    water 0.0
    ethyl acetate 828.59
    n-propanol 96.44
    acetone 379.5
    n-butanol 174.26
    acetonitrile 63.47
    DMF 251.06
    toluene 587.1
    isobutanol 136.44
    1,4-dioxane 862.64
    methyl acetate 315.52
    THF 2632.09
    2-butanone 564.3
    n-pentanol 135.23
    sec-butanol 182.72
    n-hexane 774.26
    ethylene glycol 1.79
    NMP 766.83
    cyclohexane 2905.11
    DMSO 364.7
    n-butyl acetate 1980.64
    n-octanol 256.13
    chloroform 1303.13
    n-propyl acetate 925.21
    acetic acid 54.54
    dichloromethane 1265.26
    cyclohexanone 1785.84
    propylene glycol 8.76
    isopropyl acetate 1044.58
    DMAc 522.33
    2-ethoxyethanol 147.01
    isopentanol 301.55
    n-heptane 2223.25
    ethyl formate 174.0
    1,2-dichloroethane 1150.17
    n-hexanol 318.12
    2-methoxyethanol 142.82
    isobutyl acetate 801.86
    tetrachloromethane 570.01
    n-pentyl acetate 1242.76
    transcutol 1349.27
    n-heptanol 243.33
    ethylbenzene 464.85
    MIBK 945.86
    2-propoxyethanol 348.24
    tert-butanol 336.6
    MTBE 1133.29
    2-butoxyethanol 327.47
    propionic acid 89.36
    o-xylene 539.36
    formic acid 2.95
    diethyl ether 1125.41
    m-xylene 491.08
    p-xylene 622.57
    chlorobenzene 583.38
    dimethyl carbonate 118.21
    n-octane 491.89
    formamide 7.49
    cyclopentanone 1523.58
    2-pentanone 915.45
    anisole 598.4
    cyclopentyl methyl ether 2168.47
    gamma-butyrolactone 1028.03
    1-methoxy-2-propanol 228.31
    pyridine 686.53
    3-pentanone 809.54
    furfural 505.81
    n-dodecane 145.73
    diethylene glycol 63.32
    diisopropyl ether 962.36
    tert-amyl alcohol 409.48
    acetylacetone 858.96
    n-hexadecane 186.98
    acetophenone 580.98
    methyl propionate 435.49
    isopentyl acetate 1872.85
    trichloroethylene 1483.41
    n-nonanol 299.68
    cyclohexanol 574.72
    benzyl alcohol 166.28
    2-ethylhexanol 719.9
    isooctanol 336.57
    dipropyl ether 3397.67
    1,2-dichlorobenzene 706.53
    ethyl lactate 177.34
    propylene carbonate 651.02
    n-methylformamide 45.1
    2-pentanol 286.09
    n-pentane 491.61
    1-propoxy-2-propanol 718.2
    1-methoxy-2-propyl acetate 1190.95
    2-(2-methoxypropoxy) propanol 392.53
    mesitylene 501.76
    ε-caprolactone 1316.61
    p-cymene 720.42
    epichlorohydrin 1212.29
    1,1,1-trichloroethane 1754.47
    2-aminoethanol 10.24
    morpholine-4-carbaldehyde 561.59
    sulfolane 1452.13
    2,2,4-trimethylpentane 316.59
    2-methyltetrahydrofuran 2293.03
    n-hexyl acetate 1134.56
    isooctane 281.53
    2-(2-butoxyethoxy)ethanol 482.6
    sec-butyl acetate 996.08
    tert-butyl acetate 1609.28
    decalin 710.27
    glycerin 13.98
    diglyme 1317.57
    acrylic acid 43.28
    isopropyl myristate 665.76
    n-butyric acid 349.77
    acetyl acetate 479.76
    di(2-ethylhexyl) phthalate 243.24
    ethyl propionate 919.29
    nitromethane 134.48
    1,2-diethoxyethane 1924.73
    benzonitrile 273.22
    trioctyl phosphate 236.62
    1-bromopropane 1372.58
    gamma-valerolactone 1133.73
    n-decanol 214.34
    triethyl phosphate 775.42
    4-methyl-2-pentanol 280.99
    propionitrile 157.88
    vinylene carbonate 332.92
    1,1,2-trichlorotrifluoroethane 434.63
    DMS 446.9
    cumene 384.15
    2-octanol 279.62
    2-hexanone 853.78
    octyl acetate 585.33
    limonene 1575.02
    1,2-dimethoxyethane 855.6
    ethyl orthosilicate 892.08
    tributyl phosphate 347.64
    diacetone alcohol 717.06
    N,N-dimethylaniline 526.16
    acrylonitrile 95.23
    aniline 275.28
    1,3-propanediol 38.99
    bromobenzene 876.56
    dibromomethane 1097.7
    1,1,2,2-tetrachloroethane 1725.01
    2-methyl-cyclohexyl acetate 1287.42
    tetrabutyl urea 508.46
    diisobutyl methanol 850.07
    2-phenylethanol 255.48
    styrene 475.56
    dioctyl adipate 718.78
    dimethyl sulfate 239.71
    ethyl butyrate 2162.55
    methyl lactate 96.35
    butyl lactate 458.2
    diethyl carbonate 980.74
    propanediol butyl ether 160.04
    triethyl orthoformate 1802.72
    p-tert-butyltoluene 714.18
    methyl 4-tert-butylbenzoate 671.87
    morpholine 935.2
    tert-butylamine 385.87
    n-dodecanol 178.36
    dimethoxymethane 394.12
    ethylene carbonate 408.14
    cyrene 317.86
    2-ethoxyethyl acetate 918.37
    2-ethylhexyl acetate 1836.22
    1,2,4-trichlorobenzene 730.54
    4-methylpyridine 738.28
    dibutyl ether 2114.47
    2,6-dimethyl-4-heptanol 850.07
    DEF 933.76
    dimethyl isosorbide 1150.96
    tetrachloroethylene 968.52
    eugenol 329.99
    triacetin 767.69
    span 80 406.89
    1,4-butanediol 15.11
    1,1-dichloroethane 1072.74
    2-methyl-1-pentanol 237.65
    methyl formate 43.62
    2-methyl-1-butanol 240.49
    n-decane 380.23
    butyronitrile 300.77
    3,7-dimethyl-1-octanol 499.23
    1-chlorooctane 824.02
    1-chlorotetradecane 288.43
    n-nonane 439.4
    undecane 216.4
    tert-butylcyclohexane 542.56
    cyclooctane 1073.13
    cyclopentanol 434.68
    tetrahydropyran 2374.85
    tert-amyl methyl ether 1102.01
    2,5,8-trioxanonane 777.58
    1-hexene 807.63
    2-isopropoxyethanol 209.23
    2,2,2-trifluoroethanol 22.42
    methyl butyrate 1098.59

    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

Botanical

Name CAS Botanical Proportion
Thymus pulegioides (Italy) Thymus pulegioides L., fam. Lamiaceae (Labiatae) 1.6%
Keora (India) 3 Pandanus odoratissimus L. (P. fascicularis Lam.), fam. Pandanaceae 0.6%