1,4-Octadiene

Overview IFRA Request a quote

  • Identifiers

    CAS number
    5675-25-2

    Molecular formula
    C8H14

    SMILES
    CCC/C=C/CC=C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Green 56.88%
    Gassy 52.92%
    Citrus 41.34%
    Herbal 39.77%
    Fresh 29.47%
    Fatty 28.33%
    Fruity 28.18%
    Fishy 26.43%
    Vegetable 25.62%
    Oily 23.86%

     

    Flavor
    Citrus 19.88%
    Pumpkin 19.48%
    Oriental 19.19%
    Biscuit 19.07%
    Glue 18.3%
    Bloody 18.28%
    Low 18.26%
    Honeydew 18.26%
    Skunky 18.14%
    Ammoniacal 18.04%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.3

    pKa est.
    8.51 (weak base)

    Molecular weight
    110.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    121°C

    Flash point

    • 15.59 ˚C est.

  • Synonyms

    • 1,4-Octadiene
    • DTXSID801317767
    • RefChem:416981
    • DTXCID901747569
    • (4E)-octa-1,4-diene
    • 5675-25-2
    • 1,4-Octadiene,c&t
    • MFCD00027235
    • 53793-31-0
    • (E)-1,4-Octadiene
    • 1,4-Octadiene, E
    • 1,4-Octadiene, trans
    • (4E)octa-1,4-diene
    • (4E)-1,4-Octadiene
    • 1,4-Octadiene(cis+trans)
    • SCHEMBL61620
    • (4E)-1,4-Octadiene #
    • SCHEMBL145032
    • SCHEMBL145113
    • SCHEMBL148258
    • SCHEMBL148611
    • SCHEMBL150338
    • SCHEMBL354839
    • SCHEMBL1541347
    • HYBLFDUGSBOMPI-BQYQJAHWSA-N
    • DTXSID701378663
    • ST45022216
    • T72633
    • 5675-25-2

  • Applications

    Chemical name: 1,4-Octadiene; CAS number: 5675-25-2 is primarily used as a diene monomer and chemical intermediate for polymers and elastomers, enabling copolymerization to produce plastics with vinyl functionality and crosslinked networks. It is also evaluated as a comonomer in coatings and UV-curable inks, where it can act as a reactive diluent or crosslinking component to enhance hardness and adhesion. In adhesives, it provides vinyl functionality that improves polymer network formation. As an organic synthesis building block, it serves as an intermediate for preparing monomers and functionalized products for the plastics and rubber industries. These applications reflect its role as a monomer and intermediate in polymer production.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1742.34
    methanol 974.8
    isopropanol 1828.38
    water 0.04
    ethyl acetate 2333.94
    n-propanol 1803.73
    acetone 2409.8
    n-butanol 2491.27
    acetonitrile 1107.53
    DMF 1206.44
    toluene 1575.33
    isobutanol 1445.48
    1,4-dioxane 3140.6
    methyl acetate 1417.79
    THF 6009.37
    2-butanone 2248.06
    n-pentanol 1563.93
    sec-butanol 1991.98
    n-hexane 3571.67
    ethylene glycol 115.52
    NMP 1030.75
    cyclohexane 3893.38
    DMSO 2039.35
    n-butyl acetate 5104.0
    n-octanol 887.8
    chloroform 3199.77
    n-propyl acetate 1620.57
    acetic acid 659.29
    dichloromethane 3117.51
    cyclohexanone 2793.24
    propylene glycol 250.44
    isopropyl acetate 1433.34
    DMAc 760.37
    2-ethoxyethanol 910.92
    isopentanol 2150.76
    n-heptane 4196.17
    ethyl formate 772.46
    1,2-dichloroethane 2400.43
    n-hexanol 4050.39
    2-methoxyethanol 1344.35
    isobutyl acetate 995.32
    tetrachloromethane 944.52
    n-pentyl acetate 1259.25
    transcutol 3200.23
    n-heptanol 970.76
    ethylbenzene 783.03
    MIBK 1376.26
    2-propoxyethanol 2559.54
    tert-butanol 2633.64
    MTBE 3583.16
    2-butoxyethanol 965.35
    propionic acid 760.85
    o-xylene 651.67
    formic acid 67.66
    diethyl ether 4930.46
    m-xylene 870.6
    p-xylene 785.48
    chlorobenzene 1142.61
    dimethyl carbonate 245.87
    n-octane 747.24
    formamide 106.18
    cyclopentanone 2504.97
    2-pentanone 2528.38
    anisole 854.41
    cyclopentyl methyl ether 3312.42
    gamma-butyrolactone 1653.98
    1-methoxy-2-propanol 1327.69
    pyridine 2332.75
    3-pentanone 1572.47
    furfural 991.62
    n-dodecane 277.8
    diethylene glycol 706.28
    diisopropyl ether 1507.92
    tert-amyl alcohol 2127.21
    acetylacetone 1318.41
    n-hexadecane 323.7
    acetophenone 527.78
    methyl propionate 1156.25
    isopentyl acetate 3232.97
    trichloroethylene 2661.37
    n-nonanol 777.9
    cyclohexanol 2114.69
    benzyl alcohol 505.31
    2-ethylhexanol 3165.83
    isooctanol 751.95
    dipropyl ether 5990.52
    1,2-dichlorobenzene 762.53
    ethyl lactate 299.65
    propylene carbonate 946.12
    n-methylformamide 439.61
    2-pentanol 2141.33
    n-pentane 2761.46
    1-propoxy-2-propanol 2660.56
    1-methoxy-2-propyl acetate 1638.21
    2-(2-methoxypropoxy) propanol 644.94
    mesitylene 584.42
    ε-caprolactone 1877.5
    p-cymene 878.54
    epichlorohydrin 2306.32
    1,1,1-trichloroethane 2517.32
    2-aminoethanol 311.34
    morpholine-4-carbaldehyde 1027.48
    sulfolane 1668.24
    2,2,4-trimethylpentane 627.09
    2-methyltetrahydrofuran 5386.79
    n-hexyl acetate 1541.5
    isooctane 631.98
    2-(2-butoxyethoxy)ethanol 970.48
    sec-butyl acetate 986.07
    tert-butyl acetate 1427.01
    decalin 789.07
    glycerin 237.14
    diglyme 1860.24
    acrylic acid 394.45
    isopropyl myristate 582.65
    n-butyric acid 1834.58
    acetyl acetate 786.77
    di(2-ethylhexyl) phthalate 318.55
    ethyl propionate 1191.67
    nitromethane 831.67
    1,2-diethoxyethane 3321.23
    benzonitrile 806.04
    trioctyl phosphate 304.38
    1-bromopropane 4160.73
    gamma-valerolactone 1782.0
    n-decanol 581.67
    triethyl phosphate 506.23
    4-methyl-2-pentanol 1023.14
    propionitrile 1424.54
    vinylene carbonate 646.84
    1,1,2-trichlorotrifluoroethane 893.19
    DMS 506.26
    cumene 434.15
    2-octanol 662.48
    2-hexanone 2066.0
    octyl acetate 646.54
    limonene 1980.87
    1,2-dimethoxyethane 2487.7
    ethyl orthosilicate 636.61
    tributyl phosphate 408.16
    diacetone alcohol 1001.79
    N,N-dimethylaniline 513.1
    acrylonitrile 940.84
    aniline 999.25
    1,3-propanediol 620.32
    bromobenzene 1420.93
    dibromomethane 3218.23
    1,1,2,2-tetrachloroethane 2242.03
    2-methyl-cyclohexyl acetate 1132.75
    tetrabutyl urea 513.63
    diisobutyl methanol 1342.52
    2-phenylethanol 993.38
    styrene 988.62
    dioctyl adipate 597.07
    dimethyl sulfate 306.42
    ethyl butyrate 2786.22
    methyl lactate 270.49
    butyl lactate 565.31
    diethyl carbonate 1074.0
    propanediol butyl ether 546.86
    triethyl orthoformate 1496.15
    p-tert-butyltoluene 827.93
    methyl 4-tert-butylbenzoate 464.11
    morpholine 3597.59
    tert-butylamine 2460.6
    n-dodecanol 477.82
    dimethoxymethane 1362.29
    ethylene carbonate 676.73
    cyrene 364.58
    2-ethoxyethyl acetate 1039.45
    2-ethylhexyl acetate 2825.64
    1,2,4-trichlorobenzene 763.4
    4-methylpyridine 2059.13
    dibutyl ether 3113.85
    2,6-dimethyl-4-heptanol 1342.52
    DEF 1673.1
    dimethyl isosorbide 1104.32
    tetrachloroethylene 1523.87
    eugenol 403.51
    triacetin 602.83
    span 80 758.09
    1,4-butanediol 214.53
    1,1-dichloroethane 2783.72
    2-methyl-1-pentanol 1358.16
    methyl formate 312.77
    2-methyl-1-butanol 1799.44
    n-decane 605.0
    butyronitrile 2466.2
    3,7-dimethyl-1-octanol 1114.9
    1-chlorooctane 1089.97
    1-chlorotetradecane 382.62
    n-nonane 790.44
    undecane 389.42
    tert-butylcyclohexane 726.85
    cyclooctane 1319.66
    cyclopentanol 1671.69
    tetrahydropyran 6517.17
    tert-amyl methyl ether 2276.3
    2,5,8-trioxanonane 1017.49
    1-hexene 5344.53
    2-isopropoxyethanol 769.5
    2,2,2-trifluoroethanol 98.47
    methyl butyrate 1614.67

    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