11-Bromo-1-undecene

Overview IFRA Request a quote

  • Identifiers

    CAS number
    7766-50-9

    Molecular formula
    C11H21Br

    SMILES
    C=CCCCCCCCCCBr

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Waxy 60.46%
    Fatty 53.2%
    Citrus 51.84%
    Fresh 42.85%
    Meaty 35.8%
    Clean 32.01%
    Oily 32.0%
    Sweet 31.62%
    Orange 30.77%
    Floral 30.63%

     

    Flavor
    Waxy 25.04%
    Delicate 21.09%
    Slightly waxy 20.67%
    Skunky 20.12%
    Incense 20.05%
    Citrus peel 19.86%
    Grapefruit peel 19.84%
    Low 19.79%
    Diterpene 19.78%
    Coumarinic 19.73%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    6.0

    pKa est.
    7.23 (neutral)

    Molecular weight
    233.19 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    259°C

    Flash point

    • 103.1 ˚C est.

  • Synonyms

    • 11-Bromo-1-undecene
    • DTXSID90300900
    • RefChem:437220
    • DTXCID70252034
    • 622-571-0
    • 7766-50-9
    • 11-Bromoundec-1-ene
    • 10-Undecenyl Bromide
    • MFCD00040825
    • 1-bromo-10-undecene
    • Undec-10-enyl bromide
    • C11H21Br
    • 11-bromo-undec-1-ene
    • 1-Bromo-10-undecene; 10-Undecenyl bromide; NSC 139878
    • 11-bromoundecene
    • undecylenyl bromide
    • NSC139878
    • n-undecylenic bromide
    • 1-bromundec-10-ene
    • 1-bromoundec-10-ene
    • 11-Bromo-1-undecene #
    • SCHEMBL215267
    • SCHEMBL2960514
    • SCHEMBL7905570
    • 11-Bromo-1-undecene, 95%
    • CHEMBL1702186
    • GEO-03714
    • SBB059242
    • AKOS015836171
    • CS-W020160
    • GS-5499
    • NSC-139878
    • NCGC00166054-01
    • SY038269
    • B3576
    • ST51044334
    • H10581
    • 11-Bromo-1-undecene, purum, >=95.0% (GC)
    • EN300-6767083
    • F001789
    • 11-Bromoundecene, 66% Bio-based (100% Bio-based carbon content)
    • 7766-50-9

  • Applications

    11-Bromo-1-undecene, CAS 7766-50-9, is primarily used as a reactive alkenyl bromide building block in organic synthesis and materials chemistry. It serves as a functional handle for Pd-catalyzed cross-coupling to prepare long-chain polymers and surface-grafted materials, and can act as a vinyl monomer or co-monomer in specialty polymerizations. In coatings and inks, it introduces a long hydrophobic alkyl tail while providing a bromine site for further post-polymerization modification. As an intermediate, it supports the synthesis of specialty adhesives and sealants via radical or cross-coupling routes. It is also used as a precursor for surface modification and interface engineering in electronics-related materials, where the vinyl and bromide functionality enable attachment or subsequent transformation to functional interfaces. Collectively, 11-Bromo-1-undecene is valued as a versatile building block for functional polymers, surface treatments, and advanced materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 258.41
    methanol 105.4
    isopropanol 297.11
    water 0.01
    ethyl acetate 779.64
    n-propanol 320.97
    acetone 1050.5
    n-butanol 409.2
    acetonitrile 200.14
    DMF 450.54
    toluene 802.58
    isobutanol 307.86
    1,4-dioxane 1505.87
    methyl acetate 460.51
    THF 3142.12
    2-butanone 837.58
    n-pentanol 355.08
    sec-butanol 368.4
    n-hexane 556.34
    ethylene glycol 20.17
    NMP 717.69
    cyclohexane 1456.09
    DMSO 1115.76
    n-butyl acetate 1283.92
    n-octanol 264.68
    chloroform 1616.89
    n-propyl acetate 698.12
    acetic acid 212.19
    dichloromethane 1491.29
    cyclohexanone 1806.14
    propylene glycol 56.17
    isopropyl acetate 628.03
    DMAc 491.48
    2-ethoxyethanol 388.89
    isopentanol 449.89
    n-heptane 822.53
    ethyl formate 257.06
    1,2-dichloroethane 1241.86
    n-hexanol 598.58
    2-methoxyethanol 394.49
    isobutyl acetate 564.4
    tetrachloromethane 505.16
    n-pentyl acetate 660.86
    transcutol 1842.76
    n-heptanol 274.35
    ethylbenzene 422.21
    MIBK 690.2
    2-propoxyethanol 663.76
    tert-butanol 544.08
    MTBE 923.2
    2-butoxyethanol 379.83
    propionic acid 197.89
    o-xylene 473.42
    formic acid 18.05
    diethyl ether 1263.11
    m-xylene 513.68
    p-xylene 529.48
    chlorobenzene 727.09
    dimethyl carbonate 142.01
    n-octane 199.0
    formamide 38.85
    cyclopentanone 1654.05
    2-pentanone 963.25
    anisole 549.31
    cyclopentyl methyl ether 1668.36
    gamma-butyrolactone 1042.26
    1-methoxy-2-propanol 405.93
    pyridine 1108.52
    3-pentanone 725.63
    furfural 729.06
    n-dodecane 80.77
    diethylene glycol 242.14
    diisopropyl ether 615.38
    tert-amyl alcohol 480.89
    acetylacetone 882.63
    n-hexadecane 98.77
    acetophenone 508.25
    methyl propionate 426.4
    isopentyl acetate 1027.5
    trichloroethylene 1665.05
    n-nonanol 257.47
    cyclohexanol 777.4
    benzyl alcohol 307.79
    2-ethylhexanol 609.72
    isooctanol 269.93
    dipropyl ether 1597.94
    1,2-dichlorobenzene 622.9
    ethyl lactate 186.27
    propylene carbonate 610.6
    n-methylformamide 127.55
    2-pentanol 408.89
    n-pentane 429.69
    1-propoxy-2-propanol 747.85
    1-methoxy-2-propyl acetate 839.22
    2-(2-methoxypropoxy) propanol 419.25
    mesitylene 418.31
    ε-caprolactone 1153.8
    p-cymene 405.82
    epichlorohydrin 1362.81
    1,1,1-trichloroethane 1442.35
    2-aminoethanol 65.85
    morpholine-4-carbaldehyde 751.47
    sulfolane 1417.53
    2,2,4-trimethylpentane 165.93
    2-methyltetrahydrofuran 2261.37
    n-hexyl acetate 663.74
    isooctane 153.26
    2-(2-butoxyethoxy)ethanol 582.92
    sec-butyl acetate 572.47
    tert-butyl acetate 825.71
    decalin 345.28
    glycerin 73.52
    diglyme 1202.08
    acrylic acid 126.96
    isopropyl myristate 346.04
    n-butyric acid 482.06
    acetyl acetate 459.95
    di(2-ethylhexyl) phthalate 214.62
    ethyl propionate 529.54
    nitromethane 336.06
    1,2-diethoxyethane 1393.99
    benzonitrile 421.92
    trioctyl phosphate 182.79
    1-bromopropane 1187.35
    gamma-valerolactone 1320.08
    n-decanol 201.62
    triethyl phosphate 345.73
    4-methyl-2-pentanol 289.81
    propionitrile 264.12
    vinylene carbonate 407.98
    1,1,2-trichlorotrifluoroethane 638.09
    DMS 381.52
    cumene 279.84
    2-octanol 240.5
    2-hexanone 805.67
    octyl acetate 360.68
    limonene 778.2
    1,2-dimethoxyethane 1056.85
    ethyl orthosilicate 388.83
    tributyl phosphate 244.44
    diacetone alcohol 600.24
    N,N-dimethylaniline 381.89
    acrylonitrile 216.08
    aniline 443.4
    1,3-propanediol 150.16
    bromobenzene 968.9
    dibromomethane 1322.93
    1,1,2,2-tetrachloroethane 1597.79
    2-methyl-cyclohexyl acetate 636.98
    tetrabutyl urea 332.15
    diisobutyl methanol 461.17
    2-phenylethanol 389.03
    styrene 521.32
    dioctyl adipate 445.97
    dimethyl sulfate 257.61
    ethyl butyrate 957.49
    methyl lactate 139.43
    butyl lactate 340.03
    diethyl carbonate 458.8
    propanediol butyl ether 269.39
    triethyl orthoformate 716.75
    p-tert-butyltoluene 395.7
    methyl 4-tert-butylbenzoate 429.9
    morpholine 1557.28
    tert-butylamine 463.99
    n-dodecanol 171.0
    dimethoxymethane 556.42
    ethylene carbonate 418.12
    cyrene 366.57
    2-ethoxyethyl acetate 679.98
    2-ethylhexyl acetate 952.89
    1,2,4-trichlorobenzene 689.32
    4-methylpyridine 985.66
    dibutyl ether 988.38
    2,6-dimethyl-4-heptanol 461.17
    DEF 714.73
    dimethyl isosorbide 857.24
    tetrachloroethylene 1068.18
    eugenol 330.78
    triacetin 532.57
    span 80 449.33
    1,4-butanediol 73.42
    1,1-dichloroethane 1124.47
    2-methyl-1-pentanol 367.72
    methyl formate 115.81
    2-methyl-1-butanol 380.31
    n-decane 168.3
    butyronitrile 431.43
    3,7-dimethyl-1-octanol 359.21
    1-chlorooctane 419.17
    1-chlorotetradecane 165.64
    n-nonane 200.93
    undecane 106.79
    tert-butylcyclohexane 250.79
    cyclooctane 532.92
    cyclopentanol 665.2
    tetrahydropyran 2625.69
    tert-amyl methyl ether 724.11
    2,5,8-trioxanonane 793.01
    1-hexene 875.82
    2-isopropoxyethanol 382.31
    2,2,2-trifluoroethanol 65.09
    methyl butyrate 664.43

    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