Methallyl alcohol

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  • Identifiers

    CAS number
    513-42-8

    Molecular formula
    C4H8O

    SMILES
    CC(=C)CO

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Ethereal 59.27%
    Pungent 52.14%
    Sweet 45.23%
    Fruity 45.14%
    Herbal 42.93%
    Green 41.8%
    Alcoholic 38.23%
    Sharp 37.12%
    Fermented 36.38%
    Oily 32.75%

     

    Flavor
    Pungent 43.89%
    Ethereal 37.88%
    Sweet 36.52%
    Musty 29.24%
    Fruity 27.53%
    Oily 25.55%
    Nutty 25.47%
    Green 24.95%
    Vegetable 23.34%
    Mustard 22.69%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.8

    pKa est.
    8.52 (weak base)

    Molecular weight
    72.11 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point

    • 239 °F at 760 mmHg (USCG, 1999)

    Flash point

    • 25.42 ˚C est.
    • 92 °F (USCG, 1999)

  • Synonyms

    • METHALLYL ALCOHOL
    • 513-42-8
    • 2-Methyl-2-propen-1-ol
    • 2-Methylprop-2-en-1-ol
    • 2-Propen-1-ol, 2-methyl-
    • 2-Methylallyl alcohol
    • Isopropenyl carbinol
    • beta-Methallyl alcohol
    • Methacryl alcohol
    • 3-Hydroxy-2-methylpropene
    • 2-Methyl-2-propenol
    • beta-Methylallyl alcohol
    • isobutenol
    • H2T2UK4JAP
    • 2-Methyl-2-propene-1-ol
    • EINECS 208-161-0
    • NSC 30674
    • UN2614
    • 2-methallyl alcohol
    • BRN 0969226
    • AI3-02677
    • NSC-30674
    • CH2=C(CH3)CH2OH
    • DTXSID4060155
    • 4-01-00-02114 (Beilstein Handbook Reference)
    • UN 2614
    • WLN: Q1Y1&U1
    • 25747-67-5
    • MFCD00004737
    • 2-Methyl-prop-2-en-1-ol
    • Isopropenylcarbinol
    • 2Methylprop2en1ol
    • betaMethallyl alcohol
    • ss--Methallyl alcohol
    • 3Hydroxy2methylpropene
    • betaMethylallyl alcohol
    • 2Propen1ol, 2methyl
    • 2-methyl-allyl alcohol
    • .beta.-Methallyl alcohol
    • UNII-H2T2UK4JAP
    • .beta.-Methylallyl alcohol
    • 2-methyl-2-propen-1 -ol
    • 2-methyl-2-propene- 1-ol
    • DTXCID7040998
    • 2-METHYLPROP-1-EN-3-OL
    • 2-Methyl-2-propen-1-ol, 98%
    • NSC30674
    • STR09045
    • NSC404204
    • AKOS009031392
    • 2-METHYL-3-HYDROXY-1-PROPENE
    • NSC-404204
    • FM156574
    • DB-071338
    • A7576
    • M0091
    • NS00032259
    • EN300-19324
    • H10780
    • Methallyl alcohol [UN2614] [Flammable liquid]
    • 2-Methyl-2-propen-1-ol, purum, >=98.0% (GC)

  • Applications

    Methallyl alcohol is primarily used as a chemical building block and intermediate for the synthesis of methallyl-containing monomers such as esters and ethers, which are then incorporated into polymers and coating formulations. It serves as a reactive precursor for crosslinkable monomers used in adhesives and sealants and in UV-curable resin systems used in coatings and inks. The compound also supports the production of specialty polymers for electronics and optoelectronic coatings, where vinyl and allylic functionality enables functionalization and performance tuning. In coatings and inks, methallyl-derived monomers help tailor reactivity, adhesion, and curing characteristics. Use may be formulation- and regulation-dependent, i.e., subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 252.74
    methanol 264.99
    isopropanol 156.73
    water 58.03
    ethyl acetate 58.7
    n-propanol 197.9
    acetone 46.17
    n-butanol 201.82
    acetonitrile 61.43
    DMF 78.85
    toluene 9.08
    isobutanol 126.55
    1,4-dioxane 74.32
    methyl acetate 64.97
    THF 104.87
    2-butanone 66.33
    n-pentanol 101.88
    sec-butanol 168.04
    n-hexane 7.81
    ethylene glycol 126.26
    NMP 80.53
    cyclohexane 6.17
    DMSO 62.55
    n-butyl acetate 57.28
    n-octanol 56.04
    chloroform 70.88
    n-propyl acetate 39.64
    acetic acid 327.48
    dichloromethane 42.67
    cyclohexanone 59.54
    propylene glycol 167.23
    isopropyl acetate 34.37
    DMAc 92.93
    2-ethoxyethanol 151.34
    isopentanol 132.2
    n-heptane 12.6
    ethyl formate 56.71
    1,2-dichloroethane 22.46
    n-hexanol 134.37
    2-methoxyethanol 252.7
    isobutyl acetate 27.06
    tetrachloromethane 24.61
    n-pentyl acetate 36.6
    transcutol 282.13
    n-heptanol 82.25
    ethylbenzene 7.71
    MIBK 35.88
    2-propoxyethanol 179.42
    tert-butanol 159.36
    MTBE 54.38
    2-butoxyethanol 138.73
    propionic acid 191.29
    o-xylene 10.8
    formic acid 223.49
    diethyl ether 48.3
    m-xylene 10.55
    p-xylene 10.43
    chlorobenzene 14.02
    dimethyl carbonate 18.48
    n-octane 4.58
    formamide 165.84
    cyclopentanone 70.16
    2-pentanone 51.27
    anisole 26.1
    cyclopentyl methyl ether 52.95
    gamma-butyrolactone 81.59
    1-methoxy-2-propanol 166.54
    pyridine 48.43
    3-pentanone 38.26
    furfural 91.64
    n-dodecane 3.06
    diethylene glycol 156.19
    diisopropyl ether 16.07
    tert-amyl alcohol 162.78
    acetylacetone 37.36
    n-hexadecane 2.99
    acetophenone 29.25
    methyl propionate 51.21
    isopentyl acetate 48.47
    trichloroethylene 51.84
    n-nonanol 48.47
    cyclohexanol 89.39
    benzyl alcohol 41.43
    2-ethylhexanol 76.97
    isooctanol 62.71
    dipropyl ether 45.62
    1,2-dichlorobenzene 14.27
    ethyl lactate 40.87
    propylene carbonate 53.13
    n-methylformamide 95.82
    2-pentanol 124.07
    n-pentane 9.87
    1-propoxy-2-propanol 147.77
    1-methoxy-2-propyl acetate 52.62
    2-(2-methoxypropoxy) propanol 86.31
    mesitylene 7.74
    ε-caprolactone 69.56
    p-cymene 13.5
    epichlorohydrin 69.45
    1,1,1-trichloroethane 28.94
    2-aminoethanol 225.86
    morpholine-4-carbaldehyde 101.06
    sulfolane 65.59
    2,2,4-trimethylpentane 8.97
    2-methyltetrahydrofuran 89.95
    n-hexyl acetate 47.1
    isooctane 5.68
    2-(2-butoxyethoxy)ethanol 130.05
    sec-butyl acetate 30.06
    tert-butyl acetate 41.33
    decalin 4.19
    glycerin 227.71
    diglyme 156.95
    acrylic acid 161.3
    isopropyl myristate 17.88
    n-butyric acid 203.55
    acetyl acetate 36.76
    di(2-ethylhexyl) phthalate 24.21
    ethyl propionate 34.99
    nitromethane 148.71
    1,2-diethoxyethane 52.65
    benzonitrile 26.92
    trioctyl phosphate 19.58
    1-bromopropane 19.06
    gamma-valerolactone 96.41
    n-decanol 34.67
    triethyl phosphate 23.98
    4-methyl-2-pentanol 65.2
    propionitrile 58.82
    vinylene carbonate 44.81
    1,1,2-trichlorotrifluoroethane 120.79
    DMS 22.87
    cumene 9.12
    2-octanol 43.55
    2-hexanone 39.27
    octyl acetate 28.44
    limonene 22.27
    1,2-dimethoxyethane 96.42
    ethyl orthosilicate 26.3
    tributyl phosphate 20.13
    diacetone alcohol 91.73
    N,N-dimethylaniline 22.02
    acrylonitrile 63.34
    aniline 41.35
    1,3-propanediol 258.03
    bromobenzene 8.86
    dibromomethane 29.8
    1,1,2,2-tetrachloroethane 46.72
    2-methyl-cyclohexyl acetate 39.09
    tetrabutyl urea 22.82
    diisobutyl methanol 36.81
    2-phenylethanol 46.12
    styrene 7.9
    dioctyl adipate 27.77
    dimethyl sulfate 22.84
    ethyl butyrate 50.22
    methyl lactate 56.92
    butyl lactate 48.16
    diethyl carbonate 27.56
    propanediol butyl ether 110.88
    triethyl orthoformate 36.29
    p-tert-butyltoluene 13.3
    methyl 4-tert-butylbenzoate 45.26
    morpholine 124.01
    tert-butylamine 87.44
    n-dodecanol 24.82
    dimethoxymethane 50.3
    ethylene carbonate 36.08
    cyrene 59.21
    2-ethoxyethyl acetate 45.91
    2-ethylhexyl acetate 35.6
    1,2,4-trichlorobenzene 19.32
    4-methylpyridine 38.0
    dibutyl ether 30.43
    2,6-dimethyl-4-heptanol 36.81
    DEF 64.39
    dimethyl isosorbide 87.26
    tetrachloroethylene 46.09
    eugenol 55.57
    triacetin 44.66
    span 80 88.28
    1,4-butanediol 97.36
    1,1-dichloroethane 27.98
    2-methyl-1-pentanol 93.98
    methyl formate 54.04
    2-methyl-1-butanol 148.47
    n-decane 5.15
    butyronitrile 63.33
    3,7-dimethyl-1-octanol 53.01
    1-chlorooctane 14.9
    1-chlorotetradecane 6.09
    n-nonane 5.09
    undecane 3.76
    tert-butylcyclohexane 6.14
    cyclooctane 3.21
    cyclopentanol 100.3
    tetrahydropyran 66.01
    tert-amyl methyl ether 54.52
    2,5,8-trioxanonane 104.88
    1-hexene 21.46
    2-isopropoxyethanol 105.22
    2,2,2-trifluoroethanol 127.76
    methyl butyrate 48.58

    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