2,4-Dimethylstyrene

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  • Identifiers

    CAS number
    2234-20-0

    Molecular formula
    C10H12

    SMILES
    CC1=CC(=C(C=C1)C=C)C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Herbal 54.27%
    Sweet 50.86%
    Spicy 49.43%
    Green 46.7%
    Phenolic 43.64%
    Woody 38.49%
    Floral 36.63%
    Nutty 36.26%
    Musty 36.03%
    Medicinal 34.77%

     

    Flavor
    Phenolic 41.15%
    Plastic 32.98%
    Medicinal 31.2%
    Woody 28.95%
    Spicy 28.56%
    Guaiacol 28.43%
    Spice 27.1%
    Citrus 26.14%
    Licorice 24.99%
    Styrene 24.08%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.4

    pKa est.
    8.31 (weak base)

    Molecular weight
    132.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Fast

    Boiling point est.
    192°C

    Flash point

    • 62.89 ˚C est.

  • Synonyms

    • 2,4-DIMETHYLSTYRENE
    • 2,4-Dimethyl-1-vinylbenzene
    • 1-ethenyl-2,4-dimethylbenzene
    • 4-Vinyl-m-xylene
    • 1-Vinyl-2,4-dimethylbenzene
    • 1,3-Dimethyl-4-vinylbenzene
    • Styrene, 2,4-dimethyl-
    • Benzene, 1-ethenyl-2,4-dimethyl-
    • 1,3-Dimethyl-4-ethenylbenzene
    • EINECS 218-781-3
    • NSC 62089
    • UNII-543ES1O25E
    • BRN 2037627
    • 543ES1O25E
    • NSC-62089
    • DTXSID00176875
    • 4-05-00-01386 (Beilstein Handbook Reference)
    • RefChem:82554
    • DTXCID0099366
    • Benzene, 1-ethenyl-2,4-dimethyl-(9CI)
    • OEVVKKAVYQFQNV-UHFFFAOYSA-N
    • 2234-20-0
    • MFCD00014937
    • 25990-16-3
    • NSC62089
    • Styrene,4-dimethyl-
    • 2,4-dimethyl styrene
    • 2,4-dimethyl-styrene
    • SCHEMBL14926
    • 2,4-dimethyl-1-vinyl-benzene
    • SCHEMBL1610965
    • SCHEMBL20972366
    • SCHEMBL29354308
    • WLN: 1U1R B1 D1
    • 2,4-Dimethyl-1-vinylbenzene #
    • AKOS009157722
    • FD03646
    • CS-0158031
    • NS00021869
    • D83821
    • EN300-1243718
    • F545885
    • Q27261154
    • 2,4-Dimethylstyrene, 97%, contains ~500 ppm tert-butylcatechol as stabilizer
    • 2234-20-0

  • Applications

    2,4-Dimethylstyrene (CAS 2234-20-0) is primarily used as a specialty monomer in polymerization to form copolymers for plastics and coatings, where its substituted aromatic vinyl group enables tuning of material properties and crosslinking potential. It also serves as a chemical intermediate in organic synthesis, providing a building block for the preparation of other aromatic compounds, including fragrance-related aroma chemicals. In coatings and inks, it is used as a reactive monomer to modify resin behavior, improving film formation and gloss. It can be used as a crosslinkable component in adhesives to enhance bond durability. The compound may be evaluated for the development of advanced polymer architectures and functional materials, always subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 774.93
    methanol 470.18
    isopropanol 528.18
    water 0.08
    ethyl acetate 1407.68
    n-propanol 679.28
    acetone 1223.44
    n-butanol 684.56
    acetonitrile 1296.64
    DMF 680.38
    toluene 1052.97
    isobutanol 421.94
    1,4-dioxane 2760.42
    methyl acetate 954.38
    THF 4106.93
    2-butanone 1183.22
    n-pentanol 476.08
    sec-butanol 512.79
    n-hexane 1006.68
    ethylene glycol 24.69
    NMP 692.91
    cyclohexane 1011.95
    DMSO 545.6
    n-butyl acetate 2518.02
    n-octanol 444.36
    chloroform 1821.83
    n-propyl acetate 807.98
    acetic acid 237.42
    dichloromethane 2312.45
    cyclohexanone 1658.7
    propylene glycol 48.85
    isopropyl acetate 692.05
    DMAc 439.91
    2-ethoxyethanol 365.16
    isopentanol 493.84
    n-heptane 1486.71
    ethyl formate 639.08
    1,2-dichloroethane 1493.14
    n-hexanol 1479.12
    2-methoxyethanol 479.78
    isobutyl acetate 470.73
    tetrachloromethane 493.89
    n-pentyl acetate 623.26
    transcutol 1241.42
    n-heptanol 438.87
    ethylbenzene 481.28
    MIBK 607.57
    2-propoxyethanol 1058.56
    tert-butanol 639.91
    MTBE 1202.21
    2-butoxyethanol 402.52
    propionic acid 257.67
    o-xylene 410.77
    formic acid 33.3
    diethyl ether 2826.57
    m-xylene 598.52
    p-xylene 505.18
    chlorobenzene 810.96
    dimethyl carbonate 233.43
    n-octane 293.36
    formamide 91.21
    cyclopentanone 1702.82
    2-pentanone 1308.28
    anisole 652.52
    cyclopentyl methyl ether 1893.71
    gamma-butyrolactone 1363.62
    1-methoxy-2-propanol 409.58
    pyridine 1435.78
    3-pentanone 959.01
    furfural 618.43
    n-dodecane 134.12
    diethylene glycol 239.52
    diisopropyl ether 703.74
    tert-amyl alcohol 490.28
    acetylacetone 684.68
    n-hexadecane 159.08
    acetophenone 385.67
    methyl propionate 799.39
    isopentyl acetate 1356.32
    trichloroethylene 1614.22
    n-nonanol 392.17
    cyclohexanol 660.75
    benzyl alcohol 261.89
    2-ethylhexanol 1055.61
    isooctanol 326.8
    dipropyl ether 3053.97
    1,2-dichlorobenzene 512.98
    ethyl lactate 140.74
    propylene carbonate 656.18
    n-methylformamide 343.2
    2-pentanol 530.76
    n-pentane 673.75
    1-propoxy-2-propanol 896.48
    1-methoxy-2-propyl acetate 867.4
    2-(2-methoxypropoxy) propanol 348.85
    mesitylene 343.36
    ε-caprolactone 1083.36
    p-cymene 444.75
    epichlorohydrin 1761.13
    1,1,1-trichloroethane 1239.51
    2-aminoethanol 88.22
    morpholine-4-carbaldehyde 794.7
    sulfolane 874.12
    2,2,4-trimethylpentane 169.36
    2-methyltetrahydrofuran 3054.21
    n-hexyl acetate 845.8
    isooctane 169.6
    2-(2-butoxyethoxy)ethanol 500.56
    sec-butyl acetate 473.13
    tert-butyl acetate 659.8
    decalin 292.94
    glycerin 47.05
    diglyme 957.52
    acrylic acid 135.21
    isopropyl myristate 354.64
    n-butyric acid 600.82
    acetyl acetate 481.52
    di(2-ethylhexyl) phthalate 207.37
    ethyl propionate 689.23
    nitromethane 532.48
    1,2-diethoxyethane 1727.73
    benzonitrile 464.61
    trioctyl phosphate 181.03
    1-bromopropane 1730.71
    gamma-valerolactone 1320.12
    n-decanol 301.77
    triethyl phosphate 275.14
    4-methyl-2-pentanol 268.65
    propionitrile 1015.08
    vinylene carbonate 505.9
    1,1,2-trichlorotrifluoroethane 300.44
    DMS 394.27
    cumene 298.19
    2-octanol 303.74
    2-hexanone 919.9
    octyl acetate 436.75
    limonene 847.96
    1,2-dimethoxyethane 1236.55
    ethyl orthosilicate 309.98
    tributyl phosphate 217.97
    diacetone alcohol 404.16
    N,N-dimethylaniline 380.65
    acrylonitrile 659.44
    aniline 471.59
    1,3-propanediol 191.56
    bromobenzene 961.76
    dibromomethane 1964.48
    1,1,2,2-tetrachloroethane 1049.48
    2-methyl-cyclohexyl acetate 556.41
    tetrabutyl urea 305.05
    diisobutyl methanol 452.46
    2-phenylethanol 514.02
    styrene 563.29
    dioctyl adipate 362.71
    dimethyl sulfate 212.2
    ethyl butyrate 1350.84
    methyl lactate 122.1
    butyl lactate 223.42
    diethyl carbonate 581.68
    propanediol butyl ether 210.0
    triethyl orthoformate 647.9
    p-tert-butyltoluene 417.18
    methyl 4-tert-butylbenzoate 363.07
    morpholine 2453.72
    tert-butylamine 589.74
    n-dodecanol 243.08
    dimethoxymethane 1052.74
    ethylene carbonate 523.35
    cyrene 253.73
    2-ethoxyethyl acetate 646.53
    2-ethylhexyl acetate 1255.75
    1,2,4-trichlorobenzene 507.18
    4-methylpyridine 1307.65
    dibutyl ether 1225.65
    2,6-dimethyl-4-heptanol 452.46
    DEF 962.45
    dimethyl isosorbide 755.91
    tetrachloroethylene 697.14
    eugenol 271.51
    triacetin 353.5
    span 80 338.06
    1,4-butanediol 69.56
    1,1-dichloroethane 1467.88
    2-methyl-1-pentanol 384.55
    methyl formate 297.7
    2-methyl-1-butanol 472.25
    n-decane 258.92
    butyronitrile 1304.65
    3,7-dimethyl-1-octanol 397.47
    1-chlorooctane 589.37
    1-chlorotetradecane 224.61
    n-nonane 312.94
    undecane 178.84
    tert-butylcyclohexane 277.79
    cyclooctane 418.94
    cyclopentanol 617.54
    tetrahydropyran 3849.98
    tert-amyl methyl ether 834.02
    2,5,8-trioxanonane 617.76
    1-hexene 1762.62
    2-isopropoxyethanol 299.96
    2,2,2-trifluoroethanol 54.52
    methyl butyrate 834.81

    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