Undecen-2-ol

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  • Identifiers

    CAS number
    64391-39-5

    Molecular formula
    C11H22O

    SMILES
    CCCCCCCCCC(=C)O

  • Odor profile

    Waxy 54.94%
    Fatty 54.52%
    Citrus 50.02%
    Fresh 41.44%
    Floral 38.35%
    Oily 37.72%
    Cheesy 36.91%
    Herbal 36.29%
    Green 33.57%
    Dairy 33.02%

    Scent© AI

  • Properties

    XLogP3-AA
    4.9

    Molecular weight
    170.29 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    244°C

    Flash point est.
    100.69 ˚C

  • Synonyms

    • Undecen-2-ol
    • 64391-39-5
    • undec-1-en-2-ol
    • SCHEMBL2745492
    • DTXSID90982942
    • NNKBIJIYZYHBGV-UHFFFAOYSA-N

  • Applications

    Undecen-2-ol (CAS 64391-39-5) is a versatile C11 secondary alkenol: used at very low levels in perfumery to impart green–fatty, slightly floral facets; more commonly employed as an intermediate to make esters (e.g., acetates/propionates) for fragrances, deodorants, and cosmetics; leveraged as a synthetic building block because it combines an –OH and a C=C bond, enabling esterification, etherification, epoxidation, hydroformylation, metathesis, and thiol–ene transformations to access diols, the corresponding ketone (2-undecanone), or acids; converted into surfactants and biolubricant components via ethoxylation/sulfation or long-chain ester formation; used as a functional grafting handle in materials (UV-curable/thiol–ene) to improve adhesion, flexibility, or film properties; serves as a precursor/scaffold for certain agrochemical, pharmaceutical, and insect pheromone intermediates; and is also applied as a reference/analyte in oxidation-catalysis studies and GC/MS method development on unsaturated alcohols (often handled as an E/Z isomer mixture, with isomer selection tailored to the application).

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 5820.11
    methanol 4013.21
    isopropanol 6891.85
    water 0.02
    ethyl acetate 4158.15
    n-propanol 5447.44
    acetone 7083.71
    n-butanol 5381.83
    acetonitrile 1992.2
    DMF 2666.77
    toluene 1012.43
    isobutanol 4192.27
    1,4-dioxane 3862.11
    methyl acetate 2291.45
    THF 9548.69
    2-butanone 5237.4
    n-pentanol 3816.3
    sec-butanol 5212.48
    n-hexane 3875.94
    ethylene glycol 201.13
    NMP 1412.36
    cyclohexane 2112.57
    DMSO 4259.6
    n-butyl acetate 5225.68
    n-octanol 1375.44
    chloroform 2856.21
    n-propyl acetate 3383.48
    acetic acid 1215.7
    dichloromethane 2598.16
    cyclohexanone 5274.01
    propylene glycol 638.91
    isopropyl acetate 2940.91
    DMAc 1534.18
    2-ethoxyethanol 2498.0
    isopentanol 4744.77
    n-heptane 1812.26
    ethyl formate 1255.28
    1,2-dichloroethane 2415.88
    n-hexanol 4950.09
    2-methoxyethanol 3629.32
    isobutyl acetate 1884.16
    tetrachloromethane 663.51
    n-pentyl acetate 2077.79
    transcutol 7041.59
    n-heptanol 1559.34
    ethylbenzene 703.36
    MIBK 2752.84
    2-propoxyethanol 4182.3
    tert-butanol 7325.23
    MTBE 7095.22
    2-butoxyethanol 1937.5
    propionic acid 1473.01
    o-xylene 569.15
    formic acid 148.32
    diethyl ether 7589.69
    m-xylene 762.41
    p-xylene 840.12
    chlorobenzene 901.87
    dimethyl carbonate 282.9
    n-octane 435.4
    formamide 242.89
    cyclopentanone 4378.37
    2-pentanone 5598.23
    anisole 990.82
    cyclopentyl methyl ether 4813.74
    gamma-butyrolactone 2936.62
    1-methoxy-2-propanol 3682.78
    pyridine 2385.29
    3-pentanone 2666.3
    furfural 1384.64
    n-dodecane 154.11
    diethylene glycol 1244.46
    diisopropyl ether 2469.58
    tert-amyl alcohol 4764.25
    acetylacetone 2484.88
    n-hexadecane 182.37
    acetophenone 765.87
    methyl propionate 2075.3
    isopentyl acetate 3892.31
    trichloroethylene 2857.74
    n-nonanol 1148.01
    cyclohexanol 3686.61
    benzyl alcohol 736.26
    2-ethylhexanol 3025.31
    isooctanol 1341.42
    dipropyl ether 6996.6
    1,2-dichlorobenzene 684.89
    ethyl lactate 617.86
    propylene carbonate 1437.76
    n-methylformamide 1108.65
    2-pentanol 4546.69
    n-pentane 1744.36
    1-propoxy-2-propanol 4249.87
    1-methoxy-2-propyl acetate 2493.49
    2-(2-methoxypropoxy) propanol 1055.36
    mesitylene 531.55
    ε-caprolactone 3184.12
    p-cymene 551.39
    epichlorohydrin 3358.05
    1,1,1-trichloroethane 2211.4
    2-aminoethanol 825.12
    morpholine-4-carbaldehyde 1766.54
    sulfolane 2721.82
    2,2,4-trimethylpentane 428.37
    2-methyltetrahydrofuran 7323.2
    n-hexyl acetate 2513.24
    isooctane 459.56
    2-(2-butoxyethoxy)ethanol 1891.18
    sec-butyl acetate 2151.93
    tert-butyl acetate 2922.23
    decalin 615.08
    glycerin 506.22
    diglyme 3239.68
    acrylic acid 605.44
    isopropyl myristate 745.37
    n-butyric acid 3931.15
    acetyl acetate 1059.24
    di(2-ethylhexyl) phthalate 411.32
    ethyl propionate 2236.29
    nitromethane 1591.13
    1,2-diethoxyethane 4597.94
    benzonitrile 946.87
    trioctyl phosphate 413.08
    1-bromopropane 3408.75
    gamma-valerolactone 3857.14
    n-decanol 776.48
    triethyl phosphate 563.66
    4-methyl-2-pentanol 2119.38
    propionitrile 2352.4
    vinylene carbonate 857.77
    1,1,2-trichlorotrifluoroethane 1507.19
    DMS 706.99
    cumene 468.67
    2-octanol 1121.05
    2-hexanone 4257.99
    octyl acetate 825.84
    limonene 1406.35
    1,2-dimethoxyethane 5241.25
    ethyl orthosilicate 687.21
    tributyl phosphate 549.38
    diacetone alcohol 2336.12
    N,N-dimethylaniline 632.74
    acrylonitrile 1494.34
    aniline 1088.24
    1,3-propanediol 1760.09
    bromobenzene 979.25
    dibromomethane 2537.89
    1,1,2,2-tetrachloroethane 2579.8
    2-methyl-cyclohexyl acetate 1349.37
    tetrabutyl urea 664.19
    diisobutyl methanol 1497.86
    2-phenylethanol 1047.14
    styrene 846.8
    dioctyl adipate 816.94
    dimethyl sulfate 382.31
    ethyl butyrate 3070.09
    methyl lactate 530.63
    butyl lactate 1161.82
    diethyl carbonate 1074.17
    propanediol butyl ether 1331.51
    triethyl orthoformate 1676.89
    p-tert-butyltoluene 579.38
    methyl 4-tert-butylbenzoate 689.03
    morpholine 5875.9
    tert-butylamine 5263.71
    n-dodecanol 557.8
    dimethoxymethane 2515.82
    ethylene carbonate 1019.74
    cyrene 620.64
    2-ethoxyethyl acetate 1761.97
    2-ethylhexyl acetate 2979.76
    1,2,4-trichlorobenzene 713.7
    4-methylpyridine 2586.12
    dibutyl ether 4080.68
    2,6-dimethyl-4-heptanol 1497.86
    DEF 3324.32
    dimethyl isosorbide 1523.17
    tetrachloroethylene 1788.07
    eugenol 622.92
    triacetin 1028.18
    span 80 1148.45
    1,4-butanediol 570.83
    1,1-dichloroethane 3308.76
    2-methyl-1-pentanol 2840.69
    methyl formate 565.77
    2-methyl-1-butanol 3668.2
    n-decane 397.27
    butyronitrile 3742.75
    3,7-dimethyl-1-octanol 1551.56
    1-chlorooctane 1133.15
    1-chlorotetradecane 324.07
    n-nonane 491.85
    undecane 230.94
    tert-butylcyclohexane 645.98
    cyclooctane 606.28
    cyclopentanol 3291.1
    tetrahydropyran 9247.55
    tert-amyl methyl ether 3692.37
    2,5,8-trioxanonane 1646.9
    1-hexene 7537.09
    2-isopropoxyethanol 2018.44
    2,2,2-trifluoroethanol 169.41
    methyl butyrate 3284.87

    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
Cilantro (Coriander leaf) 3 8008-52-4 Coriandrum sativum L., fam. Apiaceae (Umbelliferae) 0.9%
Cilantro (Coriander leaf) 5a 8008-52-4 Coriandrum sativum L., fam. Apiaceae (Umbelliferae) 0.21%
Cilantro (Coriander leaf) 5b 8008-52-4 Coriandrum sativum L., fam. Apiaceae (Umbelliferae) 0.01%
Bactris gasipaes fruit Bactris gasipaes H.B.K., fam. Arecaceae 0.2%