beta-Butene

Overview IFRA Request a quote

  • Identifiers

    CAS number
    107-01-7

    Molecular formula
    C4H8

    SMILES
    CC=CC

    Safety labels

    Flammable
    Flammable

    Compressed Gas
    Compressed Gas

  • Odor profile

    Fragrance
    Gassy 53.61%
    Green 51.54%
    Fruity 43.93%
    Ethereal 43.22%
    Fresh 38.61%
    Sweet 34.55%
    Pungent 33.94%
    Sharp 28.92%
    Nutty 26.92%
    Vegetable 25.58%

     

    Flavor
    Green 37.89%
    Pungent 35.35%
    Fruity 33.7%
    Nutty 33.66%
    Citrus 32.21%
    Ethereal 29.8%
    Sweet 27.11%
    Gasoline 26.73%
    Alcohol 21.23%
    Plastic 21.2%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.3

    pKa est.
    9.8 (weak base)

    Molecular weight
    56.11 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -139.3 °C /cis-2-Butene/

    Boiling point

    • 3.73 °C at 760 mm Hg /cis-2-Butene/

    Flash point

    • -63.49 ˚C est.

    Solubility expt.

    • Very soluble in ethanol and ether. Soluble in benzene. /cis- and trans-2-Butene/

  • Synonyms

    • 2-BUTENE
    • .beta.-Butene
    • 107-01-7
    • beta-Butene
    • .beta.-Butylene
    • DTXSID1026748
    • AKOS032960957
    • Q3554956

  • Applications

    beta-Butene (CAS 107-01-7) is a light C4 olefin used primarily as a chemical feedstock and intermediate in petrochemical and polymer synthesis. In polymers and plastics, it can serve as a monomer or comonomer in olefin polymerization to tailor the properties of the resulting materials. In industrial manufacturing, it is employed as a building block for producing higher olefins and functionalized chemicals via processes such as hydrofunctionalization, halogenation, or hydrogenation. In coatings, inks, and adhesives, beta-Butene can function as a reactive diluent or co-monomer that participates in crosslinking or polymer networks. It may also be used as a process solvent or intermediate in various formulations and specialized industrial applications. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 134.82
    methanol 76.0
    isopropanol 129.96
    water 0.09
    ethyl acetate 282.14
    n-propanol 159.28
    acetone 153.72
    n-butanol 187.85
    acetonitrile 144.97
    DMF 135.18
    toluene 162.14
    isobutanol 112.26
    1,4-dioxane 337.47
    methyl acetate 175.79
    THF 581.89
    2-butanone 218.46
    n-pentanol 127.09
    sec-butanol 184.33
    n-hexane 258.47
    ethylene glycol 18.37
    NMP 208.08
    cyclohexane 257.72
    DMSO 136.81
    n-butyl acetate 402.23
    n-octanol 123.52
    chloroform 714.96
    n-propyl acetate 153.22
    acetic acid 104.5
    dichloromethane 478.46
    cyclohexanone 282.2
    propylene glycol 45.71
    isopropyl acetate 177.17
    DMAc 148.37
    2-ethoxyethanol 103.51
    isopentanol 157.11
    n-heptane 423.76
    ethyl formate 90.4
    1,2-dichloroethane 296.42
    n-hexanol 288.16
    2-methoxyethanol 143.41
    isobutyl acetate 97.15
    tetrachloromethane 223.97
    n-pentyl acetate 156.63
    transcutol 442.91
    n-heptanol 127.74
    ethylbenzene 100.28
    MIBK 127.64
    2-propoxyethanol 243.83
    tert-butanol 202.52
    MTBE 252.95
    2-butoxyethanol 144.49
    propionic acid 128.43
    o-xylene 105.07
    formic acid 16.17
    diethyl ether 375.14
    m-xylene 101.33
    p-xylene 114.97
    chlorobenzene 205.62
    dimethyl carbonate 48.4
    n-octane 102.04
    formamide 24.62
    cyclopentanone 326.29
    2-pentanone 221.99
    anisole 144.03
    cyclopentyl methyl ether 312.03
    gamma-butyrolactone 270.01
    1-methoxy-2-propanol 153.51
    pyridine 308.97
    3-pentanone 190.91
    furfural 212.91
    n-dodecane 48.46
    diethylene glycol 98.41
    diisopropyl ether 139.6
    tert-amyl alcohol 233.62
    acetylacetone 176.69
    n-hexadecane 52.24
    acetophenone 115.87
    methyl propionate 155.63
    isopentyl acetate 255.36
    trichloroethylene 480.99
    n-nonanol 121.92
    cyclohexanol 183.78
    benzyl alcohol 86.35
    2-ethylhexanol 266.46
    isooctanol 105.84
    dipropyl ether 514.84
    1,2-dichlorobenzene 171.22
    ethyl lactate 60.2
    propylene carbonate 191.79
    n-methylformamide 58.41
    2-pentanol 175.57
    n-pentane 200.82
    1-propoxy-2-propanol 285.41
    1-methoxy-2-propyl acetate 217.78
    2-(2-methoxypropoxy) propanol 147.17
    mesitylene 72.22
    ε-caprolactone 254.91
    p-cymene 125.09
    epichlorohydrin 300.72
    1,1,1-trichloroethane 434.7
    2-aminoethanol 50.12
    morpholine-4-carbaldehyde 192.7
    sulfolane 272.5
    2,2,4-trimethylpentane 73.18
    2-methyltetrahydrofuran 506.09
    n-hexyl acetate 185.72
    isooctane 58.75
    2-(2-butoxyethoxy)ethanol 203.73
    sec-butyl acetate 125.57
    tert-butyl acetate 176.32
    decalin 97.48
    glycerin 46.19
    diglyme 337.69
    acrylic acid 92.36
    isopropyl myristate 107.76
    n-butyric acid 213.21
    acetyl acetate 163.39
    di(2-ethylhexyl) phthalate 69.87
    ethyl propionate 162.94
    nitromethane 124.46
    1,2-diethoxyethane 345.25
    benzonitrile 142.8
    trioctyl phosphate 57.41
    1-bromopropane 421.16
    gamma-valerolactone 243.94
    n-decanol 95.03
    triethyl phosphate 105.88
    4-methyl-2-pentanol 100.31
    propionitrile 192.8
    vinylene carbonate 133.68
    1,1,2-trichlorotrifluoroethane 202.95
    DMS 103.2
    cumene 72.73
    2-octanol 96.89
    2-hexanone 174.33
    octyl acetate 128.47
    limonene 223.93
    1,2-dimethoxyethane 222.49
    ethyl orthosilicate 116.35
    tributyl phosphate 76.16
    diacetone alcohol 156.29
    N,N-dimethylaniline 100.73
    acrylonitrile 157.04
    aniline 148.04
    1,3-propanediol 73.73
    bromobenzene 243.66
    dibromomethane 460.42
    1,1,2,2-tetrachloroethane 429.5
    2-methyl-cyclohexyl acetate 168.2
    tetrabutyl urea 88.78
    diisobutyl methanol 149.81
    2-phenylethanol 140.76
    styrene 128.75
    dioctyl adipate 124.64
    dimethyl sulfate 69.8
    ethyl butyrate 305.39
    methyl lactate 62.49
    butyl lactate 94.85
    diethyl carbonate 175.08
    propanediol butyl ether 91.54
    triethyl orthoformate 220.72
    p-tert-butyltoluene 123.48
    methyl 4-tert-butylbenzoate 121.55
    morpholine 358.86
    tert-butylamine 191.24
    n-dodecanol 78.14
    dimethoxymethane 121.61
    ethylene carbonate 116.5
    cyrene 85.68
    2-ethoxyethyl acetate 156.46
    2-ethylhexyl acetate 246.14
    1,2,4-trichlorobenzene 191.12
    4-methylpyridine 239.11
    dibutyl ether 296.64
    2,6-dimethyl-4-heptanol 149.81
    DEF 208.9
    dimethyl isosorbide 220.72
    tetrachloroethylene 284.7
    eugenol 107.29
    triacetin 142.74
    span 80 177.9
    1,4-butanediol 28.63
    1,1-dichloroethane 329.63
    2-methyl-1-pentanol 132.15
    methyl formate 40.47
    2-methyl-1-butanol 159.86
    n-decane 86.18
    butyronitrile 219.24
    3,7-dimethyl-1-octanol 140.57
    1-chlorooctane 156.55
    1-chlorotetradecane 71.19
    n-nonane 100.7
    undecane 61.13
    tert-butylcyclohexane 89.04
    cyclooctane 122.56
    cyclopentanol 173.95
    tetrahydropyran 481.47
    tert-amyl methyl ether 231.37
    2,5,8-trioxanonane 238.29
    1-hexene 358.27
    2-isopropoxyethanol 100.86
    2,2,2-trifluoroethanol 31.43
    methyl butyrate 176.7

    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