2-Octen-4-ol, (2E)-

Overview IFRA Request a quote

  • Identifiers

    CAS number
    4798-61-2

    Molecular formula
    C8H16O

    SMILES
    CCCCC(/C=C/C)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 83.71%
    Green 65.01%
    Earthy 54.97%
    Mushroom 51.69%
    Sweet 48.02%
    Oily 44.36%
    Herbal 44.29%
    Metallic 41.02%
    Apple 39.45%
    Pungent 37.35%

     

    Flavor
    Green 82.53%
    Herbal 47.59%
    Spicy 39.62%
    Earthy 39.03%
    Oily 37.83%
    Fruity 36.94%
    Fresh 36.2%
    Vegetable 34.04%
    Mushroom 33.82%
    Leafy 31.14%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.2

    pKa est.
    8.91 (weak base)

    Molecular weight
    128.21 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point

    • 175.00 to 176.00 °C. @ 760.00 mm Hg

    Flash point

    • 67.09 ˚C est.

    Solubility expt.

    • Insoluble in water
    • 50% soluble in ethanol (in ethanol)

  • Synonyms

    • 2-Octen-4-ol
    • (E)-Oct-2-en-4-ol
    • 4798-61-2
    • (2E)-2-Octen-4-ol
    • (E)-2-Octen-4-ol
    • 2-Octenol-4
    • trans-2-Octen-4-ol
    • 20125-81-9
    • 2-Octen-4-ol, (E)-
    • 2-Octen-4-ol, (2E)-
    • Oct-2-en-4-ol
    • 9IDJ8Q7S9T
    • EINECS 225-357-1
    • EINECS 243-532-0
    • (2E)-oct-2-en-4-ol
    • BUTYL PROPENYL CARBINOL
    • AI3-28628
    • FEMA NO. 3888
    • 2-OCTEN-4-OL, TRANS-
    • DTXSID601316363
    • (+/-)-(E)-2-Octen-4-ol
    • NSC 93816
    • octene-2-ol-4
    • (E)-2-OCTEN-4-OL [FHFI]
    • (+/-)-2-OCTEN-4-OL, (2E)-
    • UNII-9IDJ8Q7S9T
    • DTXSID00863455
    • NSC93816
    • SCHEMBL1245104
    • SCHEMBL1245107
    • FEMA 3888
    • DTXCID40909306
    • DTXCID50812074
    • CHEBI:195850
    • NSC-93816
    • AKOS006271756
    • NS00084272
    • Q27272598
    • 225-357-1

  • Applications

    2-Octen-4-ol, (2E)- (CAS 4798-61-2) is used as an odorant and a synthetic intermediate in fragrance chemistry; in perfumery it can contribute to scent notes and is occasionally used in cosmetics and personal care products as a fragrance ingredient; it may also be used in household products such as cleaners and air fresheners to impart aroma; in industrial manufacturing it serves as a building block or precursor for aroma compounds and related specialty chemicals.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 4912.93
    methanol 4493.49
    isopropanol 4564.9
    water 1.0
    ethyl acetate 1217.11
    n-propanol 3944.84
    acetone 2036.19
    n-butanol 4006.85
    acetonitrile 1424.64
    DMF 1621.57
    toluene 463.12
    isobutanol 2935.12
    1,4-dioxane 2562.47
    methyl acetate 922.84
    THF 4024.08
    2-butanone 1392.26
    n-pentanol 2365.79
    sec-butanol 3309.73
    n-hexane 1460.87
    ethylene glycol 506.59
    NMP 997.75
    cyclohexane 1346.09
    DMSO 1965.62
    n-butyl acetate 1903.15
    n-octanol 929.27
    chloroform 2890.18
    n-propyl acetate 923.29
    acetic acid 1551.48
    dichloromethane 2082.91
    cyclohexanone 1928.04
    propylene glycol 881.51
    isopropyl acetate 743.82
    DMAc 680.74
    2-ethoxyethanol 1290.61
    isopentanol 2662.87
    n-heptane 1003.91
    ethyl formate 849.78
    1,2-dichloroethane 1330.93
    n-hexanol 3672.0
    2-methoxyethanol 2398.76
    isobutyl acetate 609.39
    tetrachloromethane 703.13
    n-pentyl acetate 695.89
    transcutol 2560.58
    n-heptanol 1100.62
    ethylbenzene 292.69
    MIBK 742.91
    2-propoxyethanol 2519.08
    tert-butanol 4065.49
    MTBE 2308.15
    2-butoxyethanol 1121.43
    propionic acid 1324.78
    o-xylene 253.54
    formic acid 355.82
    diethyl ether 2482.94
    m-xylene 306.64
    p-xylene 355.27
    chlorobenzene 643.53
    dimethyl carbonate 164.71
    n-octane 235.39
    formamide 345.14
    cyclopentanone 1724.29
    2-pentanone 1462.89
    anisole 466.39
    cyclopentyl methyl ether 1564.34
    gamma-butyrolactone 1463.94
    1-methoxy-2-propanol 1784.49
    pyridine 1504.75
    3-pentanone 705.06
    furfural 1015.52
    n-dodecane 125.5
    diethylene glycol 1173.92
    diisopropyl ether 649.81
    tert-amyl alcohol 2468.52
    acetylacetone 720.71
    n-hexadecane 136.65
    acetophenone 357.23
    methyl propionate 704.53
    isopentyl acetate 1384.14
    trichloroethylene 1770.17
    n-nonanol 731.5
    cyclohexanol 2334.82
    benzyl alcohol 504.44
    2-ethylhexanol 1829.82
    isooctanol 778.5
    dipropyl ether 2007.71
    1,2-dichlorobenzene 466.54
    ethyl lactate 312.63
    propylene carbonate 791.24
    n-methylformamide 923.78
    2-pentanol 2508.9
    n-pentane 1192.3
    1-propoxy-2-propanol 2009.79
    1-methoxy-2-propyl acetate 778.12
    2-(2-methoxypropoxy) propanol 587.79
    mesitylene 225.18
    ε-caprolactone 1354.44
    p-cymene 286.66
    epichlorohydrin 1599.92
    1,1,1-trichloroethane 1292.15
    2-aminoethanol 1299.89
    morpholine-4-carbaldehyde 1045.57
    sulfolane 1411.22
    2,2,4-trimethylpentane 276.69
    2-methyltetrahydrofuran 3022.18
    n-hexyl acetate 892.29
    isooctane 273.89
    2-(2-butoxyethoxy)ethanol 964.67
    sec-butyl acetate 553.99
    tert-butyl acetate 704.37
    decalin 291.01
    glycerin 797.47
    diglyme 1416.36
    acrylic acid 791.6
    isopropyl myristate 339.69
    n-butyric acid 2511.41
    acetyl acetate 435.01
    di(2-ethylhexyl) phthalate 267.75
    ethyl propionate 582.12
    nitromethane 1177.43
    1,2-diethoxyethane 1325.89
    benzonitrile 723.85
    trioctyl phosphate 256.05
    1-bromopropane 1763.89
    gamma-valerolactone 1653.08
    n-decanol 516.15
    triethyl phosphate 263.23
    4-methyl-2-pentanol 1013.37
    propionitrile 1647.49
    vinylene carbonate 620.09
    1,1,2-trichlorotrifluoroethane 1009.43
    DMS 321.82
    cumene 215.91
    2-octanol 684.51
    2-hexanone 1202.95
    octyl acetate 411.7
    limonene 627.18
    1,2-dimethoxyethane 2128.38
    ethyl orthosilicate 306.23
    tributyl phosphate 290.86
    diacetone alcohol 755.68
    N,N-dimethylaniline 313.39
    acrylonitrile 1176.31
    aniline 692.65
    1,3-propanediol 1850.58
    bromobenzene 641.25
    dibromomethane 1861.9
    1,1,2,2-tetrachloroethane 1622.68
    2-methyl-cyclohexyl acetate 563.4
    tetrabutyl urea 343.98
    diisobutyl methanol 721.95
    2-phenylethanol 705.76
    styrene 392.64
    dioctyl adipate 388.37
    dimethyl sulfate 216.62
    ethyl butyrate 931.51
    methyl lactate 339.74
    butyl lactate 492.22
    diethyl carbonate 456.67
    propanediol butyl ether 906.47
    triethyl orthoformate 604.95
    p-tert-butyltoluene 288.58
    methyl 4-tert-butylbenzoate 377.3
    morpholine 3265.94
    tert-butylamine 3195.39
    n-dodecanol 392.53
    dimethoxymethane 1014.52
    ethylene carbonate 620.48
    cyrene 382.97
    2-ethoxyethyl acetate 593.5
    2-ethylhexyl acetate 1027.95
    1,2,4-trichlorobenzene 464.76
    4-methylpyridine 1327.34
    dibutyl ether 1156.62
    2,6-dimethyl-4-heptanol 721.95
    DEF 1083.53
    dimethyl isosorbide 759.88
    tetrachloroethylene 1219.99
    eugenol 402.53
    triacetin 439.69
    span 80 760.04
    1,4-butanediol 678.05
    1,1-dichloroethane 1883.25
    2-methyl-1-pentanol 1510.9
    methyl formate 512.17
    2-methyl-1-butanol 2364.92
    n-decane 233.88
    butyronitrile 2462.8
    3,7-dimethyl-1-octanol 787.09
    1-chlorooctane 552.34
    1-chlorotetradecane 205.09
    n-nonane 270.96
    undecane 162.43
    tert-butylcyclohexane 299.19
    cyclooctane 334.48
    cyclopentanol 2321.87
    tetrahydropyran 4086.39
    tert-amyl methyl ether 1198.43
    2,5,8-trioxanonane 896.45
    1-hexene 2434.08
    2-isopropoxyethanol 940.11
    2,2,2-trifluoroethanol 259.46
    methyl butyrate 961.13

    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