5-Undecene, (5E)-

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  • Identifiers

    CAS number
    764-97-6

    Molecular formula
    C11H22

    SMILES
    CCCCC/C=C/CCCC

    Safety labels

  • Odor profile

    Fragrance
    Gassy 56.13%
    Waxy 32.55%
    Citrus 31.16%
    Sweet 25.9%
    Oily 23.87%
    Herbal 22.85%
    Fatty 20.65%
    Fishy 20.26%
    Fresh 19.03%
    Meaty 16.51%

     

    Flavor
    Alkane 40.32%
    Delicate 19.23%
    Low 19.08%
    Diterpene 18.91%
    Skunky 18.8%
    Honeydew 18.79%
    Incense 18.78%
    Oriental 18.76%
    Citrus peel 18.58%
    Slightly waxy 18.35%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    5.2

    pKa est.
    8.98 (weak base)

    Molecular weight
    154.29 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    193°C

    Flash point

    • 66.83 ˚C est.

  • Synonyms

    • (E)-5-Undecene
    • 5-Undecene, (E)-
    • 5-Undecene, (5E)-
    • 764-97-6
    • trans-5-Undecene
    • O41NLB9Z1L
    • .EPSILON.-TRANS-UNDECENE
    • 5Undecene, (E)
    • RefChem:537994
    • EPSILON-TRANS-UNDECENE
    • (E)-undec-5-ene
    • (5E)-5-Undecene
    • (5E)-Undec-5-ene
    • UNII-O41NLB9Z1L
    • trans-undec-5-ene
    • 5-Undecene, trans-
    • (5E)-5-Undecene #
    • SCHEMBL452457
    • SCHEMBL453674
    • SCHEMBL2851962
    • SCHEMBL4330978
    • SCHEMBL5986741
    • CHEBI:88565
    • DTXSID00874001
    • NS00061988
    • Q27160456
    • 764-97-6

  • Applications

    5-Undecene, (5E)- (CAS 764-97-6) is a long-chain internal olefin that serves as a versatile building block in chemical manufacturing. In fragrance and perfumery, it can function as an odorant or fixative owing to its long hydrophobic chain. In polymers and plastics, it may be used as a monomer or comonomer for specialty polymers through functionalization or olefin metathesis. In coatings and inks, it is employed as a reactive diluent or a crosslinkable intermediate for resin systems used in paints, coatings, and adhesives. As a precursor to epoxy derivatives via epoxidation, it enables access to epoxy-functional materials for coatings and adhesives. In cleaning formulations, it may act as a nonpolar solvent or carrier for hydrophobic actives.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 3079.59
    methanol 1204.55
    isopropanol 4122.49
    water 0.01
    ethyl acetate 8320.89
    n-propanol 3554.82
    acetone 7133.18
    n-butanol 5520.4
    acetonitrile 2528.32
    DMF 2525.98
    toluene 5979.0
    isobutanol 3282.85
    1,4-dioxane 9958.5
    methyl acetate 3766.02
    THF 19084.74
    2-butanone 6880.79
    n-pentanol 3768.17
    sec-butanol 5069.71
    n-hexane 17702.02
    ethylene glycol 104.95
    NMP 2310.72
    cyclohexane 21515.99
    DMSO 4145.99
    n-butyl acetate 19640.04
    n-octanol 2765.08
    chloroform 9521.29
    n-propyl acetate 6249.17
    acetic acid 1025.49
    dichloromethane 10013.13
    cyclohexanone 9778.88
    propylene glycol 315.49
    isopropyl acetate 6496.98
    DMAc 2079.27
    2-ethoxyethanol 2125.3
    isopentanol 5586.43
    n-heptane 23342.24
    ethyl formate 1909.93
    1,2-dichloroethane 9167.76
    n-hexanol 9603.38
    2-methoxyethanol 2649.56
    isobutyl acetate 3951.12
    tetrachloromethane 2945.83
    n-pentyl acetate 5389.59
    transcutol 10473.49
    n-heptanol 2801.38
    ethylbenzene 3268.78
    MIBK 6024.1
    2-propoxyethanol 5818.29
    tert-butanol 7441.84
    MTBE 16423.27
    2-butoxyethanol 2687.96
    propionic acid 1275.42
    o-xylene 2599.62
    formic acid 57.46
    diethyl ether 21999.51
    m-xylene 3376.21
    p-xylene 3360.11
    chlorobenzene 3655.12
    dimethyl carbonate 641.36
    n-octane 4128.27
    formamide 123.99
    cyclopentanone 7325.32
    2-pentanone 9338.22
    anisole 3133.36
    cyclopentyl methyl ether 12262.54
    gamma-butyrolactone 4202.09
    1-methoxy-2-propanol 3158.62
    pyridine 7114.74
    3-pentanone 5778.68
    furfural 2213.05
    n-dodecane 1308.87
    diethylene glycol 1156.45
    diisopropyl ether 9053.34
    tert-amyl alcohol 6410.57
    acetylacetone 4837.54
    n-hexadecane 1579.32
    acetophenone 1833.54
    methyl propionate 3499.41
    isopentyl acetate 13380.8
    trichloroethylene 9006.52
    n-nonanol 2553.8
    cyclohexanol 6254.76
    benzyl alcohol 1275.57
    2-ethylhexanol 10588.18
    isooctanol 2696.22
    dipropyl ether 32732.43
    1,2-dichlorobenzene 2605.3
    ethyl lactate 808.59
    propylene carbonate 2481.92
    n-methylformamide 707.96
    2-pentanol 6212.45
    n-pentane 11230.62
    1-propoxy-2-propanol 8309.02
    1-methoxy-2-propyl acetate 6337.83
    2-(2-methoxypropoxy) propanol 1814.53
    mesitylene 2509.36
    ε-caprolactone 6329.2
    p-cymene 3656.13
    epichlorohydrin 7178.65
    1,1,1-trichloroethane 9998.12
    2-aminoethanol 383.22
    morpholine-4-carbaldehyde 2747.54
    sulfolane 4298.68
    2,2,4-trimethylpentane 2667.9
    2-methyltetrahydrofuran 18723.94
    n-hexyl acetate 6019.56
    isooctane 2830.72
    2-(2-butoxyethoxy)ethanol 3055.13
    sec-butyl acetate 4806.25
    tert-butyl acetate 7494.93
    decalin 4365.01
    glycerin 283.41
    diglyme 6345.81
    acrylic acid 557.65
    isopropyl myristate 2491.58
    n-butyric acid 4317.82
    acetyl acetate 2727.81
    di(2-ethylhexyl) phthalate 904.28
    ethyl propionate 4947.91
    nitromethane 1604.49
    1,2-diethoxyethane 15700.3
    benzonitrile 2229.96
    trioctyl phosphate 962.12
    1-bromopropane 16482.96
    gamma-valerolactone 5425.0
    n-decanol 1900.96
    triethyl phosphate 2055.46
    4-methyl-2-pentanol 3490.27
    propionitrile 3711.6
    vinylene carbonate 1509.71
    1,1,2-trichlorotrifluoroethane 2298.78
    DMS 1561.12
    cumene 1912.49
    2-octanol 2330.64
    2-hexanone 7684.88
    octyl acetate 2563.05
    limonene 8911.23
    1,2-dimethoxyethane 8470.46
    ethyl orthosilicate 2675.0
    tributyl phosphate 1371.85
    diacetone alcohol 3800.08
    N,N-dimethylaniline 2040.58
    acrylonitrile 2188.0
    aniline 2713.68
    1,3-propanediol 1034.18
    bromobenzene 5037.49
    dibromomethane 10784.89
    1,1,2,2-tetrachloroethane 8240.14
    2-methyl-cyclohexyl acetate 4518.99
    tetrabutyl urea 1771.9
    diisobutyl methanol 6115.22
    2-phenylethanol 2591.15
    styrene 3853.27
    dioctyl adipate 2227.83
    dimethyl sulfate 731.08
    ethyl butyrate 12292.25
    methyl lactate 578.11
    butyl lactate 1795.19
    diethyl carbonate 4317.82
    propanediol butyl ether 1214.3
    triethyl orthoformate 6990.27
    p-tert-butyltoluene 3581.49
    methyl 4-tert-butylbenzoate 1535.36
    morpholine 11256.52
    tert-butylamine 8785.62
    n-dodecanol 1559.94
    dimethoxymethane 3855.49
    ethylene carbonate 1878.96
    cyrene 864.52
    2-ethoxyethyl acetate 4029.24
    2-ethylhexyl acetate 12240.22
    1,2,4-trichlorobenzene 2562.67
    4-methylpyridine 6869.37
    dibutyl ether 17182.71
    2,6-dimethyl-4-heptanol 6115.22
    DEF 5913.34
    dimethyl isosorbide 3131.41
    tetrachloroethylene 5112.76
    eugenol 1073.12
    triacetin 2069.66
    span 80 2125.26
    1,4-butanediol 349.2
    1,1-dichloroethane 10092.07
    2-methyl-1-pentanol 3846.4
    methyl formate 498.88
    2-methyl-1-butanol 4572.66
    n-decane 3020.04
    butyronitrile 6852.24
    3,7-dimethyl-1-octanol 4103.54
    1-chlorooctane 5266.75
    1-chlorotetradecane 1704.92
    n-nonane 3966.04
    undecane 1850.6
    tert-butylcyclohexane 3690.95
    cyclooctane 7566.11
    cyclopentanol 4039.07
    tetrahydropyran 25458.71
    tert-amyl methyl ether 10309.88
    2,5,8-trioxanonane 3152.1
    1-hexene 22705.6
    2-isopropoxyethanol 2256.36
    2,2,2-trifluoroethanol 146.28
    methyl butyrate 6370.65

    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