2-Hexen-1-ol, (2Z)-

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  • Identifiers

    CAS number
    928-94-9

    Molecular formula
    C6H12O

    SMILES
    CCC/C=C\CO

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Retention indicies (RI)

    • DB5: 880.0
    • Carbowax: 1417.5

  • Odor profile

    Green 93.95%
    Fruity 80.3%
    Fatty 76.28%
    Fresh 71.29%
    Vegetable 65.86%
    Herbal 62.89%
    Sweet 55.97%
    Grassy 55.72%
    Oily 53.68%
    Pungent 52.14%

    Scent© AI

  • Properties

    XLogP3-AA
    1.4

    pKa est.
    8.48 (weak base)

    Molecular weight
    100.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Fast

    Boiling point est.
    156°C

    Flash point est.
    67.69 ˚C

    Solubility expt.

    • Soluble in fats; Insoluble in water
    • Soluble (in ethanol)

  • Synonyms

    • cis-2-Hexen-1-ol
    • 928-94-9
    • (Z)-hex-2-en-1-ol
    • cis-Hex-2-en-1-ol
    • 2-Hexen-1-ol, (Z)-
    • 2-Hexen-1-ol, (2Z)-
    • (Z)-2-Hexen-1-ol
    • 2Z-Hexen-1-ol
    • (2Z)-2-Hexen-1-ol
    • (Z)-2-hexenol
    • 871TEL510E
    • 2-Hexen-1-ol, cis-
    • EINECS 213-190-7
    • MFCD00063209
    • AI3-34791
    • FEMA NO. 3924
    • DTXSID20883610
    • FEMA NO. 2562, Z-
    • (Z)-2-HEXEN-1-OL [FHFI]
    • UNII-871TEL510E
    • cis-2-hexenol
    • Z-2-hexen-1-ol
    • cis-beta-gamma-Hexenol
    • (Z)-Hex-2-enol
    • cis-1-Hydroxy-2-hexene
    • (Z)-Hex-2-ene-1-ol
    • SCHEMBL295023
    • cis-2-Hexen-1-ol, 95%
    • (2Z)-2-Hexen-1-ol #
    • CHEBI:195648
    • DTXCID001023122
    • LMFA05000115
    • AKOS015856217
    • HY-W127618
    • DB-254242
    • CS-0185821
    • H0751
    • NS00079667
    • cis-2-Hexen-1-ol, >=96%, stabilized, FG
    • D90941
    • Q1093153
    • 213-190-7

  • Applications

    (Z)‑2‑Hexen‑1‑ol (CAS 928‑94‑9) is an unsaturated linear alcohol with a fresh green, leafy, slightly fatty odour, used widely to impart natural “green” notes in flavour formulations (beverages, confectionery, dairy, baked goods, fruit/vegetable profiles) and in perfumery, cosmetics, soaps, detergents, and air‑care products; it serves as a versatile intermediate for preparing 2‑hexenyl esters (e.g., 2‑hexenyl acetate), related aldehydes/ketones, and other derivatives for flavour–fragrance and agrochemical intermediates; employed as an analytical reference/GC or GC‑MS standard and sensory reference in green‑leaf‑volatile research; occasionally used as a co‑solvent or reaction medium at lab scale; its (Z) geometry provides a softer, more natural green tonality than the (E) isomer, making it useful for freshness effects and masking harsh/fatty off‑notes in formulations.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2616.33
    methanol 1831.4
    isopropanol 2178.16
    water 1.36
    ethyl acetate 632.84
    n-propanol 2034.16
    acetone 1210.09
    n-butanol 1912.69
    acetonitrile 695.79
    DMF 1226.69
    toluene 137.12
    isobutanol 1324.21
    1,4-dioxane 1105.65
    methyl acetate 540.93
    THF 2137.45
    2-butanone 724.15
    n-pentanol 838.89
    sec-butanol 1353.49
    n-hexane 162.83
    ethylene glycol 460.76
    NMP 771.77
    cyclohexane 247.99
    DMSO 2358.99
    n-butyl acetate 833.18
    n-octanol 343.71
    chloroform 1257.23
    n-propyl acetate 377.15
    acetic acid 1354.54
    dichloromethane 1317.65
    cyclohexanone 1137.79
    propylene glycol 640.19
    isopropyl acetate 300.82
    DMAc 373.9
    2-ethoxyethanol 664.32
    isopentanol 1142.17
    n-heptane 290.0
    ethyl formate 539.04
    1,2-dichloroethane 770.03
    n-hexanol 1402.34
    2-methoxyethanol 1632.01
    isobutyl acetate 212.35
    tetrachloromethane 267.44
    n-pentyl acetate 279.09
    transcutol 1472.22
    n-heptanol 404.79
    ethylbenzene 75.8
    MIBK 314.38
    2-propoxyethanol 1190.37
    tert-butanol 1698.23
    MTBE 627.89
    2-butoxyethanol 504.92
    propionic acid 1043.46
    o-xylene 90.18
    formic acid 286.83
    diethyl ether 718.74
    m-xylene 105.7
    p-xylene 93.77
    chlorobenzene 261.2
    dimethyl carbonate 116.14
    n-octane 54.72
    formamide 353.96
    cyclopentanone 1231.46
    2-pentanone 695.44
    anisole 183.96
    cyclopentyl methyl ether 766.38
    gamma-butyrolactone 1205.16
    1-methoxy-2-propanol 1159.28
    pyridine 656.77
    3-pentanone 329.46
    furfural 757.04
    n-dodecane 35.22
    diethylene glycol 759.0
    diisopropyl ether 168.16
    tert-amyl alcohol 905.71
    acetylacetone 465.57
    n-hexadecane 37.64
    acetophenone 166.94
    methyl propionate 420.64
    isopentyl acetate 539.24
    trichloroethylene 1098.15
    n-nonanol 267.48
    cyclohexanol 1072.66
    benzyl alcohol 211.92
    2-ethylhexanol 650.96
    isooctanol 271.0
    dipropyl ether 747.09
    1,2-dichlorobenzene 214.57
    ethyl lactate 171.27
    propylene carbonate 563.6
    n-methylformamide 772.46
    2-pentanol 1008.45
    n-pentane 213.51
    1-propoxy-2-propanol 988.49
    1-methoxy-2-propyl acetate 427.73
    2-(2-methoxypropoxy) propanol 310.35
    mesitylene 75.0
    ε-caprolactone 773.14
    p-cymene 118.99
    epichlorohydrin 1146.37
    1,1,1-trichloroethane 595.83
    2-aminoethanol 970.19
    morpholine-4-carbaldehyde 738.76
    sulfolane 1318.12
    2,2,4-trimethylpentane 61.14
    2-methyltetrahydrofuran 1418.53
    n-hexyl acetate 375.82
    isooctane 61.21
    2-(2-butoxyethoxy)ethanol 504.7
    sec-butyl acetate 187.77
    tert-butyl acetate 289.41
    decalin 61.96
    glycerin 603.12
    diglyme 810.28
    acrylic acid 617.77
    isopropyl myristate 142.56
    n-butyric acid 1575.35
    acetyl acetate 239.18
    di(2-ethylhexyl) phthalate 128.96
    ethyl propionate 257.35
    nitromethane 1117.63
    1,2-diethoxyethane 532.23
    benzonitrile 303.41
    trioctyl phosphate 132.23
    1-bromopropane 672.36
    gamma-valerolactone 1202.85
    n-decanol 200.12
    triethyl phosphate 135.59
    4-methyl-2-pentanol 357.01
    propionitrile 670.62
    vinylene carbonate 446.5
    1,1,2-trichlorotrifluoroethane 690.87
    DMS 172.39
    cumene 63.92
    2-octanol 229.92
    2-hexanone 416.21
    octyl acetate 184.64
    limonene 262.07
    1,2-dimethoxyethane 876.2
    ethyl orthosilicate 146.16
    tributyl phosphate 145.2
    diacetone alcohol 453.67
    N,N-dimethylaniline 116.56
    acrylonitrile 652.01
    aniline 308.17
    1,3-propanediol 1307.58
    bromobenzene 239.04
    dibromomethane 993.82
    1,1,2,2-tetrachloroethane 828.75
    2-methyl-cyclohexyl acetate 254.05
    tetrabutyl urea 191.87
    diisobutyl methanol 290.72
    2-phenylethanol 301.67
    styrene 102.05
    dioctyl adipate 202.15
    dimethyl sulfate 189.22
    ethyl butyrate 486.58
    methyl lactate 235.35
    butyl lactate 250.61
    diethyl carbonate 228.55
    propanediol butyl ether 473.82
    triethyl orthoformate 290.77
    p-tert-butyltoluene 116.12
    methyl 4-tert-butylbenzoate 197.45
    morpholine 1591.01
    tert-butylamine 1076.98
    n-dodecanol 154.25
    dimethoxymethane 608.72
    ethylene carbonate 403.88
    cyrene 231.79
    2-ethoxyethyl acetate 283.77
    2-ethylhexyl acetate 385.42
    1,2,4-trichlorobenzene 241.12
    4-methylpyridine 513.64
    dibutyl ether 361.33
    2,6-dimethyl-4-heptanol 290.72
    DEF 592.01
    dimethyl isosorbide 461.27
    tetrachloroethylene 562.49
    eugenol 226.58
    triacetin 220.05
    span 80 424.99
    1,4-butanediol 395.17
    1,1-dichloroethane 809.05
    2-methyl-1-pentanol 502.47
    methyl formate 437.1
    2-methyl-1-butanol 986.29
    n-decane 57.39
    butyronitrile 963.58
    3,7-dimethyl-1-octanol 283.8
    1-chlorooctane 178.21
    1-chlorotetradecane 71.93
    n-nonane 62.47
    undecane 43.29
    tert-butylcyclohexane 64.18
    cyclooctane 67.88
    cyclopentanol 1450.17
    tetrahydropyran 1568.74
    tert-amyl methyl ether 354.4
    2,5,8-trioxanonane 530.48
    1-hexene 409.88
    2-isopropoxyethanol 400.36
    2,2,2-trifluoroethanol 223.1
    methyl butyrate 424.87

    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
Daphne genkwa Daphne genkwa Sieb. et Zucc., fam. Thymelaeaceae 0.01%
Calamintha nepeta (Turkey) 2 Calamintha nepeta (L.) Savi ssp. glandulosa (Req.) P.W.Ball, fam.Lamiaceae 0.01%
Lawsonia inermis flower 1b Lawsonia inermis L. (syn. L. alba Lam.), fam. Lytraceae 0.1%
Peppermint (USA) 10b (headspace harvested plant) 8006-90-4 Mentha piperita L., fam. Lamiaceae (Labiatae) 1.4%