2-Methyl-5-hexen-3-ol

Overview IFRA Request a quote

  • Identifiers

    CAS number
    32815-70-6

    Molecular formula
    C7H14O

    SMILES
    CC(C)C(CC=C)O

    Safety labels

    Flammable
    Flammable

  • Odor profile

    Fragrance
    Fruity 63.5%
    Green 62.7%
    Earthy 43.38%
    Herbal 39.02%
    Mushroom 33.63%
    Cheesy 31.06%
    Ethereal 29.27%
    Fresh 29.15%
    Oily 28.68%
    Metallic 28.53%

     

    Flavor
    Tropical 31.88%
    Green 30.49%
    Onion 29.83%
    Fruity 29.13%
    Oily 25.96%
    Bitter 25.84%
    Sulfurous 25.77%
    Pungent 24.18%
    Fishy 22.58%
    Ethereal 21.75%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.0

    pKa est.
    8.86 (weak base)

    Molecular weight
    114.19 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    146°C

    Flash point

    • 43.45 ˚C est.

  • Synonyms

    • 2-Methyl-5-hexen-3-ol
    • 32815-70-6
    • DTXSID80880706
    • RefChem:88176
    • DTXCID901020856
    • JKGMJZOZIJHPOH-UHFFFAOYSA-N
    • 2-methylhex-5-en-3-ol
    • Allyl isopropyl carbinol
    • MFCD00048326
    • 5-Hexen-3-ol, 2-methyl-
    • 2-methyl-hex-5-en-3-ol
    • SCHEMBL333827
    • SCHEMBL5154223
    • SCHEMBL27620410
    • AKOS009158343
    • AS-76880
    • DB-048274
    • CS-0451090
    • NS00096326
    • 32815-70-6

  • Applications

    2-Methyl-5-hexen-3-ol (CAS 32815-70-6) is primarily used as a fragrance ingredient and a chemical building block in fragrance chemistry, serving as an intermediate in the synthesis of related aroma compounds. In cosmetics and personal care, it may function as a scent component or formulation intermediate; in household products, it contributes to fragrance profiles in cleaners and detergents. In industrial manufacturing, it is used as a chemical intermediate with olefin and hydroxyl functionality that enables further modification. In polymers/plastics and coatings/inks, the allylic/olefin moiety provides a handle for functionalization or crosslinking in specialty formulations. The molecule’s structure supports derivatization to tailor odor and reactivity, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 194.97
    methanol 165.97
    isopropanol 221.85
    water 1.06
    ethyl acetate 104.52
    n-propanol 199.2
    acetone 119.82
    n-butanol 231.1
    acetonitrile 82.74
    DMF 95.85
    toluene 41.55
    isobutanol 192.8
    1,4-dioxane 195.5
    methyl acetate 109.58
    THF 372.52
    2-butanone 150.24
    n-pentanol 167.25
    sec-butanol 250.04
    n-hexane 94.48
    ethylene glycol 40.11
    NMP 165.9
    cyclohexane 53.93
    DMSO 142.81
    n-butyl acetate 226.01
    n-octanol 163.4
    chloroform 273.9
    n-propyl acetate 101.58
    acetic acid 119.67
    dichloromethane 154.56
    cyclohexanone 214.39
    propylene glycol 92.02
    isopropyl acetate 83.97
    DMAc 118.5
    2-ethoxyethanol 149.3
    isopentanol 234.25
    n-heptane 80.89
    ethyl formate 70.4
    1,2-dichloroethane 97.19
    n-hexanol 337.77
    2-methoxyethanol 182.95
    isobutyl acetate 95.39
    tetrachloromethane 85.86
    n-pentyl acetate 124.17
    transcutol 447.96
    n-heptanol 174.44
    ethylbenzene 48.28
    MIBK 110.05
    2-propoxyethanol 289.93
    tert-butanol 330.71
    MTBE 240.09
    2-butoxyethanol 191.84
    propionic acid 134.66
    o-xylene 52.23
    formic acid 30.7
    diethyl ether 132.88
    m-xylene 53.48
    p-xylene 68.29
    chlorobenzene 72.53
    dimethyl carbonate 23.41
    n-octane 31.98
    formamide 25.56
    cyclopentanone 227.45
    2-pentanone 117.01
    anisole 83.38
    cyclopentyl methyl ether 179.66
    gamma-butyrolactone 201.68
    1-methoxy-2-propanol 182.12
    pyridine 104.66
    3-pentanone 85.54
    furfural 164.46
    n-dodecane 23.22
    diethylene glycol 162.04
    diisopropyl ether 77.72
    tert-amyl alcohol 325.2
    acetylacetone 98.6
    n-hexadecane 24.67
    acetophenone 81.46
    methyl propionate 73.16
    isopentyl acetate 227.35
    trichloroethylene 192.89
    n-nonanol 140.31
    cyclohexanol 191.31
    benzyl alcohol 78.5
    2-ethylhexanol 245.18
    isooctanol 160.03
    dipropyl ether 184.51
    1,2-dichlorobenzene 81.5
    ethyl lactate 66.09
    propylene carbonate 142.18
    n-methylformamide 52.35
    2-pentanol 196.7
    n-pentane 62.14
    1-propoxy-2-propanol 275.01
    1-methoxy-2-propyl acetate 144.87
    2-(2-methoxypropoxy) propanol 168.15
    mesitylene 46.52
    ε-caprolactone 184.03
    p-cymene 70.36
    epichlorohydrin 179.57
    1,1,1-trichloroethane 157.51
    2-aminoethanol 91.58
    morpholine-4-carbaldehyde 155.89
    sulfolane 253.12
    2,2,4-trimethylpentane 51.31
    2-methyltetrahydrofuran 308.47
    n-hexyl acetate 183.44
    isooctane 45.63
    2-(2-butoxyethoxy)ethanol 227.86
    sec-butyl acetate 87.68
    tert-butyl acetate 127.87
    decalin 41.85
    glycerin 101.39
    diglyme 288.94
    acrylic acid 91.47
    isopropyl myristate 88.92
    n-butyric acid 199.78
    acetyl acetate 58.95
    di(2-ethylhexyl) phthalate 80.03
    ethyl propionate 75.2
    nitromethane 103.92
    1,2-diethoxyethane 165.56
    benzonitrile 94.93
    trioctyl phosphate 73.17
    1-bromopropane 122.62
    gamma-valerolactone 223.85
    n-decanol 108.93
    triethyl phosphate 67.9
    4-methyl-2-pentanol 144.46
    propionitrile 106.53
    vinylene carbonate 99.16
    1,1,2-trichlorotrifluoroethane 154.93
    DMS 73.07
    cumene 55.32
    2-octanol 130.63
    2-hexanone 139.8
    octyl acetate 103.3
    limonene 114.83
    1,2-dimethoxyethane 209.07
    ethyl orthosilicate 75.04
    tributyl phosphate 79.79
    diacetone alcohol 167.11
    N,N-dimethylaniline 74.05
    acrylonitrile 89.92
    aniline 65.81
    1,3-propanediol 133.38
    bromobenzene 70.39
    dibromomethane 137.4
    1,1,2,2-tetrachloroethane 200.76
    2-methyl-cyclohexyl acetate 147.35
    tetrabutyl urea 90.09
    diisobutyl methanol 138.38
    2-phenylethanol 124.85
    styrene 46.84
    dioctyl adipate 102.63
    dimethyl sulfate 45.82
    ethyl butyrate 144.01
    methyl lactate 58.8
    butyl lactate 117.57
    diethyl carbonate 82.68
    propanediol butyl ether 190.59
    triethyl orthoformate 113.03
    p-tert-butyltoluene 73.06
    methyl 4-tert-butylbenzoate 124.41
    morpholine 202.7
    tert-butylamine 262.51
    n-dodecanol 87.7
    dimethoxymethane 70.68
    ethylene carbonate 87.27
    cyrene 126.98
    2-ethoxyethyl acetate 115.83
    2-ethylhexyl acetate 181.27
    1,2,4-trichlorobenzene 100.18
    4-methylpyridine 109.83
    dibutyl ether 147.39
    2,6-dimethyl-4-heptanol 138.38
    DEF 101.28
    dimethyl isosorbide 230.03
    tetrachloroethylene 139.06
    eugenol 119.83
    triacetin 127.29
    span 80 188.87
    1,4-butanediol 72.03
    1,1-dichloroethane 141.85
    2-methyl-1-pentanol 189.28
    methyl formate 40.34
    2-methyl-1-butanol 220.24
    n-decane 37.82
    butyronitrile 138.25
    3,7-dimethyl-1-octanol 180.09
    1-chlorooctane 97.03
    1-chlorotetradecane 44.06
    n-nonane 40.2
    undecane 28.54
    tert-butylcyclohexane 59.07
    cyclooctane 28.06
    cyclopentanol 201.28
    tetrahydropyran 237.68
    tert-amyl methyl ether 184.19
    2,5,8-trioxanonane 216.33
    1-hexene 163.31
    2-isopropoxyethanol 143.6
    2,2,2-trifluoroethanol 40.52
    methyl butyrate 111.43

    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