2-Ethenylphenol

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    695-84-1

    Molecular formula
    C8H8O

    SMILES
    C=CC1=CC=CC=C1O

    Safety labels

    Corrosive
    Corrosive

    Acute Toxic
    Acute Toxic

    Irritant
    Irritant

    Health Hazard
    Health

  • Odor profile

    Phenolic 75.91%
    Spicy 66.96%
    Medicinal 61.84%
    Smoky 50.17%
    Sweet 48.94%
    Burnt 39.38%
    Herbal 38.64%
    Musty 38.46%
    Pungent 38.46%
    Bitter 37.17%

    Scent© AI

  • Properties

    XLogP3-AA
    2.3

    Molecular weight
    120.15 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    194°C

    Flash point est.
    80.42 ˚C

  • Synonyms

    • 2-Ethenylphenol
    • 2-vinylphenol
    • 695-84-1
    • Vinylphenol
    • 2-HYDROXYSTYRENE
    • Phenol, 2-ethenyl-
    • Phenol, ethenyl-
    • o-Hydroxystyrene
    • 31257-96-2
    • 2-ethenyl-phenol
    • I4M2EJN11W
    • DTXSID50873443
    • o-Vinylphenol
    • UNII-I4M2EJN11W
    • 2-vinyl-phenol
    • 2-ethenyl phenol
    • 2-hydroxy styrene
    • EINECS 250-539-2
    • SCHEMBL20076
    • DTXCID6038324
    • AKOS015995591
    • FV28708
    • HS-5574
    • DB-261448
    • CS-0136689
    • NS00022038
    • EN300-50361
    • E91838
    • 2-Ethenylphenol;2-Hydroxystyrene;o-Hydroxystyrene
    • Q27280437
    • 857-581-6

  • Applications

    2-Ethenylphenol (CAS 695-84-1) is a reactive vinyl phenol used as a building block and as a mono-/co-monomer to introduce phenolic -OH functionality into polymer backbones, enhancing adhesion, hydrogen bonding, and crosslinkability in coatings, varnishes, adhesives, thin dielectric layers, and photoresist materials; its vinyl group enables UV/thermal free-radical or thiol-ene curing and serves as a handle for surface modification, grafting onto particles/substrates, and anchoring ligands or catalysts in heterogeneous systems. In organic synthesis it is a versatile intermediate to performance additives, pharma/agrochemical scaffolds, and UV absorbers/antioxidants via addition/elimination, epoxidation, hydroboration-oxidation, cross-coupling, or hydrogenation to 2-ethylphenol; in research it is employed as an analytical reference and a probe for o-quinone methide chemistry; due to its tendency to self-polymerize it is commonly stabilized with inhibitors and is often handled as protected derivatives (e.g., 2-acetoxystyrene) for in situ deprotection.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1731.24
    methanol 1696.86
    isopropanol 1341.5
    water 2.17
    ethyl acetate 1505.91
    n-propanol 1319.73
    acetone 2185.03
    n-butanol 986.65
    acetonitrile 2166.25
    DMF 1653.87
    toluene 390.71
    isobutanol 921.33
    1,4-dioxane 4254.9
    methyl acetate 1636.59
    THF 3975.88
    2-butanone 1623.5
    n-pentanol 787.44
    sec-butanol 980.42
    n-hexane 301.82
    ethylene glycol 176.31
    NMP 1500.65
    cyclohexane 231.05
    DMSO 3040.31
    n-butyl acetate 1043.44
    n-octanol 397.83
    chloroform 1663.52
    n-propyl acetate 1185.89
    acetic acid 811.23
    dichloromethane 1689.51
    cyclohexanone 1642.28
    propylene glycol 207.51
    isopropyl acetate 739.96
    DMAc 625.19
    2-ethoxyethanol 935.34
    isopentanol 732.71
    n-heptane 138.67
    ethyl formate 855.57
    1,2-dichloroethane 1336.32
    n-hexanol 804.53
    2-methoxyethanol 1172.0
    isobutyl acetate 668.68
    tetrachloromethane 347.0
    n-pentyl acetate 476.27
    transcutol 2171.73
    n-heptanol 359.19
    ethylbenzene 229.92
    MIBK 668.37
    2-propoxyethanol 1103.85
    tert-butanol 1252.62
    MTBE 1379.93
    2-butoxyethanol 566.4
    propionic acid 947.34
    o-xylene 193.01
    formic acid 220.53
    diethyl ether 2169.38
    m-xylene 250.06
    p-xylene 286.35
    chlorobenzene 476.06
    dimethyl carbonate 420.08
    n-octane 72.97
    formamide 533.57
    cyclopentanone 2158.66
    2-pentanone 1219.43
    anisole 658.31
    cyclopentyl methyl ether 1489.62
    gamma-butyrolactone 2370.69
    1-methoxy-2-propanol 952.81
    pyridine 1228.53
    3-pentanone 763.54
    furfural 1099.94
    n-dodecane 55.06
    diethylene glycol 580.81
    diisopropyl ether 473.07
    tert-amyl alcohol 829.43
    acetylacetone 978.24
    n-hexadecane 61.96
    acetophenone 434.34
    methyl propionate 1021.5
    isopentyl acetate 715.97
    trichloroethylene 1634.78
    n-nonanol 338.91
    cyclohexanol 714.64
    benzyl alcohol 355.73
    2-ethylhexanol 428.51
    isooctanol 297.91
    dipropyl ether 771.63
    1,2-dichlorobenzene 351.52
    ethyl lactate 306.19
    propylene carbonate 994.0
    n-methylformamide 1074.7
    2-pentanol 768.93
    n-pentane 214.95
    1-propoxy-2-propanol 776.4
    1-methoxy-2-propyl acetate 639.0
    2-(2-methoxypropoxy) propanol 460.4
    mesitylene 177.7
    ε-caprolactone 1365.36
    p-cymene 124.09
    epichlorohydrin 2395.64
    1,1,1-trichloroethane 1145.82
    2-aminoethanol 430.56
    morpholine-4-carbaldehyde 1555.96
    sulfolane 2224.45
    2,2,4-trimethylpentane 80.22
    2-methyltetrahydrofuran 2931.13
    n-hexyl acetate 717.14
    isooctane 99.35
    2-(2-butoxyethoxy)ethanol 796.34
    sec-butyl acetate 634.72
    tert-butyl acetate 768.21
    decalin 110.02
    glycerin 251.85
    diglyme 1291.21
    acrylic acid 608.29
    isopropyl myristate 299.43
    n-butyric acid 1038.46
    acetyl acetate 535.35
    di(2-ethylhexyl) phthalate 161.32
    ethyl propionate 774.09
    nitromethane 1936.56
    1,2-diethoxyethane 1112.3
    benzonitrile 498.85
    trioctyl phosphate 169.96
    1-bromopropane 982.88
    gamma-valerolactone 2057.87
    n-decanol 260.57
    triethyl phosphate 203.31
    4-methyl-2-pentanol 386.3
    propionitrile 1318.55
    vinylene carbonate 765.55
    1,1,2-trichlorotrifluoroethane 751.33
    DMS 483.4
    cumene 163.62
    2-octanol 287.17
    2-hexanone 1096.26
    octyl acetate 364.81
    limonene 206.26
    1,2-dimethoxyethane 1717.63
    ethyl orthosilicate 200.89
    tributyl phosphate 201.14
    diacetone alcohol 701.46
    N,N-dimethylaniline 322.05
    acrylonitrile 1214.41
    aniline 422.77
    1,3-propanediol 681.88
    bromobenzene 442.03
    dibromomethane 1217.31
    1,1,2,2-tetrachloroethane 1201.22
    2-methyl-cyclohexyl acetate 374.77
    tetrabutyl urea 235.38
    diisobutyl methanol 250.35
    2-phenylethanol 408.28
    styrene 308.51
    dioctyl adipate 312.6
    dimethyl sulfate 549.63
    ethyl butyrate 658.87
    methyl lactate 341.22
    butyl lactate 303.02
    diethyl carbonate 348.54
    propanediol butyl ether 459.38
    triethyl orthoformate 346.22
    p-tert-butyltoluene 131.31
    methyl 4-tert-butylbenzoate 350.99
    morpholine 3457.24
    tert-butylamine 774.71
    n-dodecanol 204.57
    dimethoxymethane 1352.2
    ethylene carbonate 750.34
    cyrene 377.28
    2-ethoxyethyl acetate 590.81
    2-ethylhexyl acetate 532.91
    1,2,4-trichlorobenzene 409.13
    4-methylpyridine 1087.55
    dibutyl ether 624.33
    2,6-dimethyl-4-heptanol 250.35
    DEF 982.65
    dimethyl isosorbide 739.96
    tetrachloroethylene 750.86
    eugenol 351.57
    triacetin 449.3
    span 80 403.72
    1,4-butanediol 292.46
    1,1-dichloroethane 1516.43
    2-methyl-1-pentanol 584.92
    methyl formate 819.83
    2-methyl-1-butanol 703.79
    n-decane 91.41
    butyronitrile 1132.41
    3,7-dimethyl-1-octanol 335.85
    1-chlorooctane 294.93
    1-chlorotetradecane 120.39
    n-nonane 96.62
    undecane 69.33
    tert-butylcyclohexane 122.35
    cyclooctane 90.45
    cyclopentanol 948.36
    tetrahydropyran 3388.91
    tert-amyl methyl ether 711.17
    2,5,8-trioxanonane 806.64
    1-hexene 738.17
    2-isopropoxyethanol 715.33
    2,2,2-trifluoroethanol 261.71
    methyl butyrate 1014.61

    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
Cassia, branch & leaf (Australia) 8007-80-5 Cinnamomum cassia Blume, fam. Lauraceae 0.01%
Cassia, leaf (Australia) 8007-80-5 Cinnamomum cassia Blume, fam. Lauraceae 0.45%