4-Undecene, (4Z)-

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  • Identifiers

    CAS number
    821-98-7

    Molecular formula
    C11H22

    SMILES
    CCCCCC/C=C\CCC

    Safety labels

  • Odor profile

    Fragrance
    Gassy 57.28%
    Citrus 30.98%
    Waxy 30.36%
    Sweet 24.67%
    Oily 22.64%
    Herbal 22.61%
    Fishy 20.1%
    Fresh 18.72%
    Fatty 18.03%
    Meaty 15.65%

     

    Flavor
    Alkane 42.55%
    Delicate 19.33%
    Low 19.09%
    Honeydew 18.96%
    Diterpene 18.88%
    Incense 18.87%
    Skunky 18.87%
    Citrus peel 18.69%
    Oriental 18.69%
    Opoponax 18.39%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    5.2

    pKa est.
    9.03 (weak base)

    Molecular weight
    154.29 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    192°C

    Flash point

    • 65.68 ˚C est.

  • Synonyms

    • cis-4-Undecene
    • 4-Undecene, (Z)-
    • delta-cis-Undecene
    • 4-Undecene, (4Z)-
    • UNII-SAA0APX24E
    • SAA0APX24E
    • 4-Undecene, cis-
    • .DELTA.-CIS-UNDECENE
    • DTXSID70876613
    • RefChem:198789
    • DTXCID101014710
    • JABYJIQOLGWMQW-CLFYSBASSA-N
    • (Z)-4-Undecene
    • 821-98-7
    • (4Z)-4-Undecene
    • (4Z)-Undec-4-ene
    • (4Z)-4-Undecene #
    • SCHEMBL3378592
    • SCHEMBL16012359
    • SCHEMBL27216010
    • NS00096262
    • Q27289105
    • 821-98-7

  • Applications

    4-Undecene, (4Z)- (CAS 821-98-7) is a long-chain alkenic hydrocarbon that functions as a versatile building block in chemical manufacturing. It is commonly used as an intermediate in organic synthesis, enabling downstream transformations to a range of specialty chemicals. It may serve as a reactive diluent or minor monomer in selected polymers and coatings formulations, contributing to processing properties without excessive crosslinking. As a non-polar component, it can act as a processing aid or solvent in certain industrial formulations. In fragrance and perfumery, it may be evaluated as a fragrance intermediate or odorant precursor. Finally, it is often used as a starting material in research and development for further chemical elaboration to produce value-added products, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 4960.51
    methanol 1993.53
    isopropanol 6468.16
    water 0.01
    ethyl acetate 12234.62
    n-propanol 5551.86
    acetone 10864.34
    n-butanol 8523.7
    acetonitrile 3983.9
    DMF 3645.61
    toluene 7872.56
    isobutanol 5113.62
    1,4-dioxane 13920.32
    methyl acetate 5591.14
    THF 26290.95
    2-butanone 10315.59
    n-pentanol 5755.65
    sec-butanol 7796.06
    n-hexane 23880.19
    ethylene glycol 156.79
    NMP 2951.05
    cyclohexane 27256.68
    DMSO 5982.9
    n-butyl acetate 27237.48
    n-octanol 3793.6
    chloroform 12444.81
    n-propyl acetate 8844.89
    acetic acid 1481.85
    dichloromethane 13303.62
    cyclohexanone 13323.27
    propylene glycol 452.83
    isopropyl acetate 9235.06
    DMAc 2831.47
    2-ethoxyethanol 3128.3
    isopentanol 8603.12
    n-heptane 28509.96
    ethyl formate 2774.53
    1,2-dichloroethane 12488.67
    n-hexanol 14032.78
    2-methoxyethanol 4046.28
    isobutyl acetate 5333.99
    tetrachloromethane 3765.87
    n-pentyl acetate 7298.57
    transcutol 14439.12
    n-heptanol 3874.09
    ethylbenzene 4143.1
    MIBK 8553.01
    2-propoxyethanol 8296.81
    tert-butanol 11218.67
    MTBE 23839.15
    2-butoxyethanol 3676.32
    propionic acid 1850.16
    o-xylene 3227.68
    formic acid 86.44
    diethyl ether 32613.5
    m-xylene 4372.59
    p-xylene 4194.65
    chlorobenzene 4679.24
    dimethyl carbonate 876.9
    n-octane 5211.26
    formamide 185.41
    cyclopentanone 9815.05
    2-pentanone 13610.72
    anisole 4059.79
    cyclopentyl methyl ether 16712.32
    gamma-butyrolactone 5597.78
    1-methoxy-2-propanol 4695.95
    pyridine 9723.26
    3-pentanone 8205.31
    furfural 2795.85
    n-dodecane 1615.48
    diethylene glycol 1613.18
    diisopropyl ether 12494.5
    tert-amyl alcohol 9289.86
    acetylacetone 6776.74
    n-hexadecane 1937.44
    acetophenone 2284.37
    methyl propionate 5072.03
    isopentyl acetate 18360.7
    trichloroethylene 11734.86
    n-nonanol 3409.03
    cyclohexanol 8816.08
    benzyl alcohol 1657.73
    2-ethylhexanol 14701.42
    isooctanol 3645.47
    dipropyl ether 43862.15
    1,2-dichlorobenzene 3160.11
    ethyl lactate 1050.46
    propylene carbonate 3185.23
    n-methylformamide 1078.67
    2-pentanol 9485.14
    n-pentane 15432.81
    1-propoxy-2-propanol 11528.39
    1-methoxy-2-propyl acetate 8515.92
    2-(2-methoxypropoxy) propanol 2270.12
    mesitylene 3184.88
    ε-caprolactone 8624.96
    p-cymene 4516.05
    epichlorohydrin 9904.92
    1,1,1-trichloroethane 13117.88
    2-aminoethanol 566.0
    morpholine-4-carbaldehyde 3661.02
    sulfolane 5531.19
    2,2,4-trimethylpentane 3522.56
    2-methyltetrahydrofuran 26208.68
    n-hexyl acetate 8185.77
    isooctane 3735.4
    2-(2-butoxyethoxy)ethanol 3961.02
    sec-butyl acetate 6583.23
    tert-butyl acetate 10383.15
    decalin 5262.36
    glycerin 393.35
    diglyme 8312.59
    acrylic acid 791.84
    isopropyl myristate 3155.5
    n-butyric acid 6282.26
    acetyl acetate 3676.74
    di(2-ethylhexyl) phthalate 1095.2
    ethyl propionate 6868.73
    nitromethane 2385.67
    1,2-diethoxyethane 21844.57
    benzonitrile 2927.72
    trioctyl phosphate 1190.6
    1-bromopropane 22771.0
    gamma-valerolactone 7252.25
    n-decanol 2510.45
    triethyl phosphate 2436.47
    4-methyl-2-pentanol 5051.24
    propionitrile 5550.97
    vinylene carbonate 1950.04
    1,1,2-trichlorotrifluoroethane 2984.56
    DMS 1980.86
    cumene 2360.23
    2-octanol 3176.26
    2-hexanone 10782.84
    octyl acetate 3316.26
    limonene 11239.6
    1,2-dimethoxyethane 12030.17
    ethyl orthosilicate 3270.92
    tributyl phosphate 1696.73
    diacetone alcohol 5266.63
    N,N-dimethylaniline 2534.08
    acrylonitrile 3249.51
    aniline 3711.84
    1,3-propanediol 1577.28
    bromobenzene 6294.53
    dibromomethane 14577.88
    1,1,2,2-tetrachloroethane 10581.19
    2-methyl-cyclohexyl acetate 5618.18
    tetrabutyl urea 2190.29
    diisobutyl methanol 7968.61
    2-phenylethanol 3399.19
    styrene 4894.7
    dioctyl adipate 2693.34
    dimethyl sulfate 933.35
    ethyl butyrate 16617.92
    methyl lactate 777.26
    butyl lactate 2336.52
    diethyl carbonate 5463.5
    propanediol butyl ether 1632.19
    triethyl orthoformate 8846.87
    p-tert-butyltoluene 4373.67
    methyl 4-tert-butylbenzoate 1819.43
    morpholine 16249.19
    tert-butylamine 12924.39
    n-dodecanol 2063.99
    dimethoxymethane 5607.09
    ethylene carbonate 2480.47
    cyrene 1045.15
    2-ethoxyethyl acetate 5429.58
    2-ethylhexyl acetate 16474.7
    1,2,4-trichlorobenzene 3090.73
    4-methylpyridine 9439.9
    dibutyl ether 23362.16
    2,6-dimethyl-4-heptanol 7968.61
    DEF 8399.61
    dimethyl isosorbide 3836.92
    tetrachloroethylene 6658.65
    eugenol 1299.03
    triacetin 2545.45
    span 80 2632.54
    1,4-butanediol 507.4
    1,1-dichloroethane 14055.27
    2-methyl-1-pentanol 5655.16
    methyl formate 747.03
    2-methyl-1-butanol 6908.57
    n-decane 3806.34
    butyronitrile 10287.96
    3,7-dimethyl-1-octanol 5489.04
    1-chlorooctane 6820.61
    1-chlorotetradecane 2110.28
    n-nonane 5128.99
    undecane 2297.28
    tert-butylcyclohexane 4562.19
    cyclooctane 9300.95
    cyclopentanol 5666.64
    tetrahydropyran 35754.48
    tert-amyl methyl ether 14417.96
    2,5,8-trioxanonane 3909.17
    1-hexene 31710.5
    2-isopropoxyethanol 3167.56
    2,2,2-trifluoroethanol 199.86
    methyl butyrate 8907.37

    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