2-Hexene, (2Z)-

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  • Identifiers

    CAS number
    7688-21-3

    Molecular formula
    C6H12

    SMILES
    CCC/C=C\C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Gassy 63.61%
    Green 40.74%
    Fresh 32.24%
    Fruity 29.78%
    Sweet 29.65%
    Ethereal 29.14%
    Citrus 22.91%
    Vegetable 22.38%
    Sharp 20.1%
    Pungent 19.78%

     

    Flavor
    Citrus 33.25%
    Alkane 31.84%
    Gasoline 27.54%
    Green 21.74%
    Rotten 20.93%
    Fishy 20.47%
    Biscuit 20.34%
    Fresh 20.31%
    Honeydew 19.76%
    Tar 19.74%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.6

    pKa est.
    9.5 (weak base)

    Molecular weight
    84.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    69°C

    Flash point

    • -23.36 ˚C est.

  • Synonyms

    • cis-2-Hexene
    • 7688-21-3
    • (Z)-Hex-2-ene
    • (Z)-2-Hexene
    • 2-Hexene, (Z)-
    • 2-Hexene, cis-
    • 2-hexene, (2Z)-
    • (2Z)-hex-2-ene
    • UI6O1H5J7J
    • EINECS 231-697-1
    • NSC 74122
    • NSC-74122
    • 2Hexenecis
    • 2Hexene, cis
    • (Z)2Hexene
    • (Z)Hex2ene
    • 2Hexene, (Z)
    • 2Hexene, (2Z)
    • RefChem:472881
    • (2Z)-2-Hexene
    • MFCD00066520
    • cis-2-Hexene, 95%
    • UNII-UI6O1H5J7J
    • 2-Hexene-cis
    • (2Z)-2-Hexene #
    • SCHEMBL50226
    • SCHEMBL119258
    • SCHEMBL119259
    • SCHEMBL121064
    • SCHEMBL123395
    • SCHEMBL8728484
    • SCHEMBL11266324
    • DTXSID801015840
    • NSC74122
    • (Z)-2-C6H12
    • H0404
    • NS00081080
    • D90857
    • Q27291083
    • 7688-21-3

  • Applications

    2-Hexene, (2Z) (CAS 7688-21-3) is primarily used as a chemical building block and processing aid in industrial applications. In practice, it serves as an intermediate in organic synthesis for the preparation of downstream chemicals and specialty formulations. It is employed as a solvent or processing aid in coatings, inks, and cleaning formulations due to its hydrocarbon solvent properties. It can function as a reactive diluent in polymer and adhesive formulations, helping control viscosity. It may be used as a feedstock or co-monomer in polymer production to tailor material properties in certain polyolefin systems. It is considered a reference chemical in research on olefin reactions and catalytic processes. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 900.43
    methanol 470.46
    isopropanol 996.7
    water 0.05
    ethyl acetate 1243.17
    n-propanol 917.86
    acetone 1197.15
    n-butanol 1322.64
    acetonitrile 708.6
    DMF 650.91
    toluene 856.9
    isobutanol 827.46
    1,4-dioxane 1776.35
    methyl acetate 785.52
    THF 3312.76
    2-butanone 1261.37
    n-pentanol 860.99
    sec-butanol 1190.14
    n-hexane 2037.78
    ethylene glycol 65.78
    NMP 776.18
    cyclohexane 1910.14
    DMSO 1040.91
    n-butyl acetate 3094.86
    n-octanol 755.28
    chloroform 2065.0
    n-propyl acetate 858.26
    acetic acid 408.61
    dichloromethane 1846.99
    cyclohexanone 1683.07
    propylene glycol 156.08
    isopropyl acetate 816.65
    DMAc 463.82
    2-ethoxyethanol 552.2
    isopentanol 1225.02
    n-heptane 2825.35
    ethyl formate 429.54
    1,2-dichloroethane 1307.4
    n-hexanol 2622.23
    2-methoxyethanol 784.88
    isobutyl acetate 596.17
    tetrachloromethane 756.06
    n-pentyl acetate 855.62
    transcutol 1919.65
    n-heptanol 765.0
    ethylbenzene 468.63
    MIBK 832.38
    2-propoxyethanol 1727.25
    tert-butanol 1614.34
    MTBE 2108.22
    2-butoxyethanol 710.59
    propionic acid 466.61
    o-xylene 446.36
    formic acid 40.36
    diethyl ether 2384.62
    m-xylene 563.54
    p-xylene 522.27
    chlorobenzene 755.99
    dimethyl carbonate 151.78
    n-octane 638.43
    formamide 55.41
    cyclopentanone 1596.31
    2-pentanone 1338.58
    anisole 542.78
    cyclopentyl methyl ether 1907.54
    gamma-butyrolactone 1115.58
    1-methoxy-2-propanol 827.6
    pyridine 1217.9
    3-pentanone 905.0
    furfural 705.03
    n-dodecane 283.89
    diethylene glycol 508.68
    diisopropyl ether 898.71
    tert-amyl alcohol 1369.16
    acetylacetone 798.08
    n-hexadecane 314.77
    acetophenone 362.34
    methyl propionate 662.37
    isopentyl acetate 2073.5
    trichloroethylene 1611.45
    n-nonanol 646.19
    cyclohexanol 1166.86
    benzyl alcohol 332.08
    2-ethylhexanol 2188.78
    isooctanol 632.4
    dipropyl ether 3406.35
    1,2-dichlorobenzene 568.85
    ethyl lactate 216.64
    propylene carbonate 697.98
    n-methylformamide 236.1
    2-pentanol 1235.89
    n-pentane 1503.33
    1-propoxy-2-propanol 1948.38
    1-methoxy-2-propyl acetate 1112.07
    2-(2-methoxypropoxy) propanol 527.7
    mesitylene 395.51
    ε-caprolactone 1229.38
    p-cymene 641.73
    epichlorohydrin 1421.45
    1,1,1-trichloroethane 1716.89
    2-aminoethanol 186.57
    morpholine-4-carbaldehyde 724.96
    sulfolane 1163.17
    2,2,4-trimethylpentane 466.62
    2-methyltetrahydrofuran 3113.89
    n-hexyl acetate 1095.17
    isooctane 487.88
    2-(2-butoxyethoxy)ethanol 806.5
    sec-butyl acetate 585.53
    tert-butyl acetate 938.86
    decalin 542.63
    glycerin 157.85
    diglyme 1312.66
    acrylic acid 260.77
    isopropyl myristate 495.79
    n-butyric acid 1086.41
    acetyl acetate 490.49
    di(2-ethylhexyl) phthalate 269.93
    ethyl propionate 651.63
    nitromethane 496.13
    1,2-diethoxyethane 1896.31
    benzonitrile 575.55
    trioctyl phosphate 269.95
    1-bromopropane 2437.83
    gamma-valerolactone 1192.26
    n-decanol 505.34
    triethyl phosphate 372.74
    4-methyl-2-pentanol 702.47
    propionitrile 890.33
    vinylene carbonate 456.38
    1,1,2-trichlorotrifluoroethane 621.3
    DMS 357.35
    cumene 315.85
    2-octanol 590.22
    2-hexanone 1147.59
    octyl acetate 554.83
    limonene 1356.4
    1,2-dimethoxyethane 1401.88
    ethyl orthosilicate 456.87
    tributyl phosphate 343.36
    diacetone alcohol 750.79
    N,N-dimethylaniline 366.06
    acrylonitrile 619.53
    aniline 613.5
    1,3-propanediol 385.76
    bromobenzene 975.64
    dibromomethane 1970.3
    1,1,2,2-tetrachloroethane 1407.96
    2-methyl-cyclohexyl acetate 847.79
    tetrabutyl urea 435.62
    diisobutyl methanol 1012.47
    2-phenylethanol 696.25
    styrene 568.51
    dioctyl adipate 471.66
    dimethyl sulfate 195.39
    ethyl butyrate 1597.73
    methyl lactate 188.61
    butyl lactate 430.1
    diethyl carbonate 704.82
    propanediol butyl ether 472.74
    triethyl orthoformate 1019.0
    p-tert-butyltoluene 624.38
    methyl 4-tert-butylbenzoate 397.05
    morpholine 2010.29
    tert-butylamine 1512.72
    n-dodecanol 433.63
    dimethoxymethane 705.7
    ethylene carbonate 465.82
    cyrene 298.22
    2-ethoxyethyl acetate 691.53
    2-ethylhexyl acetate 1920.29
    1,2,4-trichlorobenzene 593.36
    4-methylpyridine 1215.71
    dibutyl ether 2016.53
    2,6-dimethyl-4-heptanol 1012.47
    DEF 947.87
    dimethyl isosorbide 880.3
    tetrachloroethylene 922.05
    eugenol 344.57
    triacetin 463.01
    span 80 662.5
    1,4-butanediol 143.88
    1,1-dichloroethane 1701.71
    2-methyl-1-pentanol 819.17
    methyl formate 173.7
    2-methyl-1-butanol 1067.96
    n-decane 532.08
    butyronitrile 1412.85
    3,7-dimethyl-1-octanol 937.05
    1-chlorooctane 946.21
    1-chlorotetradecane 360.5
    n-nonane 681.48
    undecane 362.84
    tert-butylcyclohexane 537.43
    cyclooctane 807.8
    cyclopentanol 1014.07
    tetrahydropyran 3351.91
    tert-amyl methyl ether 1456.43
    2,5,8-trioxanonane 845.06
    1-hexene 2854.69
    2-isopropoxyethanol 513.75
    2,2,2-trifluoroethanol 67.34
    methyl butyrate 884.34

    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