Allyl ethyl ether

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  • Identifiers

    CAS number
    557-31-3

    Molecular formula
    C5H10O

    SMILES
    CCOCC=C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Ethereal 74.52%
    Pungent 53.52%
    Fruity 46.46%
    Sharp 45.59%
    Alcoholic 41.86%
    Gassy 38.77%
    Alliaceous 38.09%
    Fermented 36.35%
    Fresh 33.71%
    Rummy 32.14%

     

    Flavor
    Green 49.39%
    Pungent 48.62%
    Ethereal 47.35%
    Fruity 44.37%
    Vegetable 43.73%
    Nutty 38.53%
    Earthy 37.62%
    Musty 33.44%
    Alcohol 33.37%
    Ether 30.81%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.1

    pKa est.
    7.5 (neutral)

    Molecular weight
    86.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    63°C

    Flash point

    • -25.26 ˚C est.
    • less than -19 °F (NFPA, 2010)

  • Synonyms

    • ALLYL ETHYL ETHER
    • 557-31-3
    • 1-Propene, 3-ethoxy-
    • 3-ethoxyprop-1-ene
    • 3-Ethoxy-1-propene
    • Ethyl allyl ether
    • Ether, allyl ethyl
    • 3-Ethoxypropene
    • Ethyl 2-propenyl ether
    • UNII-SM8T658RE3
    • UN2335
    • SM8T658RE3
    • EINECS 209-169-7
    • Allyl ethyl ether, 95%
    • CH3CH2OCH2CH=CH2
    • AI3-24223
    • ALLYL ETHYL ETHER [MI]
    • DTXSID4060319
    • UN 2335
    • UN-2335
    • 3Ethoxy1propene
    • 3-ethoxy-propene
    • 1Propene, 3ethoxy
    • MFCD00009255
    • Ethyl 2propenyl ether
    • DTXCID0041939
    • AKOS015838946
    • Allyl ethyl ether, stabilized with BHT
    • DB-052783
    • A1033
    • Allyl ethyl ether, technical, >=95% (GC)
    • NS00033376
    • D88369
    • Allyl ethyl ether [UN2335] [Flammable liquid]
    • Q27289279
    • 209-169-7

  • Applications

    Allyl ethyl ether (CAS number: 557-31-3) is used primarily as a low-viscosity solvent and processing aid in industrial formulations such as coatings, inks, and adhesives, where it helps dissolve resins and can function as a reactive diluent in polymer systems. It serves as an intermediate in organic synthesis, enabling introduction of allyl ether functionality into alcohols and other substrates for further transformation. The allyl group also supports participation in radical curing and cross-linking in polymer and coating formulations, including UV-curable or thermosetting systems. Because of its reactive moiety, it can be employed as a building block for specialty chemicals and as part of protective-group strategies in targeted synthesis. Its use is subject to local regulations and formulation limits, and handling should follow relevant safety and environmental requirements.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 500.98
    methanol 527.12
    isopropanol 401.69
    water 2.33
    ethyl acetate 342.28
    n-propanol 420.23
    acetone 383.91
    n-butanol 444.53
    acetonitrile 405.02
    DMF 386.74
    toluene 173.04
    isobutanol 311.22
    1,4-dioxane 561.79
    methyl acetate 336.99
    THF 715.99
    2-butanone 380.59
    n-pentanol 297.26
    sec-butanol 418.45
    n-hexane 212.03
    ethylene glycol 137.02
    NMP 470.36
    cyclohexane 227.45
    DMSO 545.94
    n-butyl acetate 410.31
    n-octanol 217.0
    chloroform 923.81
    n-propyl acetate 208.32
    acetic acid 490.52
    dichloromethane 806.75
    cyclohexanone 479.22
    propylene glycol 194.53
    isopropyl acetate 186.81
    DMAc 362.12
    2-ethoxyethanol 331.38
    isopentanol 330.54
    n-heptane 206.52
    ethyl formate 185.54
    1,2-dichloroethane 431.59
    n-hexanol 481.81
    2-methoxyethanol 485.07
    isobutyl acetate 140.55
    tetrachloromethane 292.22
    n-pentyl acetate 192.57
    transcutol 917.65
    n-heptanol 186.3
    ethylbenzene 106.29
    MIBK 165.87
    2-propoxyethanol 530.66
    tert-butanol 497.04
    MTBE 414.56
    2-butoxyethanol 238.23
    propionic acid 361.89
    o-xylene 129.64
    formic acid 122.13
    diethyl ether 460.04
    m-xylene 123.09
    p-xylene 139.79
    chlorobenzene 258.67
    dimethyl carbonate 70.43
    n-octane 64.33
    formamide 111.26
    cyclopentanone 492.87
    2-pentanone 285.56
    anisole 200.23
    cyclopentyl methyl ether 392.03
    gamma-butyrolactone 459.51
    1-methoxy-2-propanol 373.78
    pyridine 407.46
    3-pentanone 240.16
    furfural 407.53
    n-dodecane 43.24
    diethylene glycol 356.59
    diisopropyl ether 136.98
    tert-amyl alcohol 454.05
    acetylacetone 239.78
    n-hexadecane 47.02
    acetophenone 178.54
    methyl propionate 229.39
    isopentyl acetate 292.4
    trichloroethylene 724.36
    n-nonanol 181.59
    cyclohexanol 405.13
    benzyl alcohol 177.29
    2-ethylhexanol 310.77
    isooctanol 150.81
    dipropyl ether 367.03
    1,2-dichlorobenzene 227.43
    ethyl lactate 116.77
    propylene carbonate 254.11
    n-methylformamide 193.08
    2-pentanol 315.67
    n-pentane 186.26
    1-propoxy-2-propanol 428.84
    1-methoxy-2-propyl acetate 247.48
    2-(2-methoxypropoxy) propanol 263.74
    mesitylene 90.29
    ε-caprolactone 374.08
    p-cymene 122.77
    epichlorohydrin 484.18
    1,1,1-trichloroethane 543.49
    2-aminoethanol 235.7
    morpholine-4-carbaldehyde 423.29
    sulfolane 527.42
    2,2,4-trimethylpentane 84.81
    2-methyltetrahydrofuran 688.35
    n-hexyl acetate 289.08
    isooctane 54.53
    2-(2-butoxyethoxy)ethanol 326.16
    sec-butyl acetate 146.67
    tert-butyl acetate 188.55
    decalin 86.11
    glycerin 229.0
    diglyme 519.95
    acrylic acid 286.28
    isopropyl myristate 126.44
    n-butyric acid 421.63
    acetyl acetate 199.71
    di(2-ethylhexyl) phthalate 119.77
    ethyl propionate 173.0
    nitromethane 453.36
    1,2-diethoxyethane 381.16
    benzonitrile 258.43
    trioctyl phosphate 91.41
    1-bromopropane 452.66
    gamma-valerolactone 457.02
    n-decanol 137.08
    triethyl phosphate 126.5
    4-methyl-2-pentanol 151.81
    propionitrile 326.16
    vinylene carbonate 229.67
    1,1,2-trichlorotrifluoroethane 410.01
    DMS 166.38
    cumene 90.61
    2-octanol 141.24
    2-hexanone 248.8
    octyl acetate 158.77
    limonene 220.3
    1,2-dimethoxyethane 487.86
    ethyl orthosilicate 128.82
    tributyl phosphate 121.88
    diacetone alcohol 226.44
    N,N-dimethylaniline 148.09
    acrylonitrile 319.16
    aniline 220.79
    1,3-propanediol 298.87
    bromobenzene 268.46
    dibromomethane 644.93
    1,1,2,2-tetrachloroethane 617.89
    2-methyl-cyclohexyl acetate 203.56
    tetrabutyl urea 151.39
    diisobutyl methanol 153.85
    2-phenylethanol 213.49
    styrene 140.83
    dioctyl adipate 174.89
    dimethyl sulfate 120.35
    ethyl butyrate 268.75
    methyl lactate 134.51
    butyl lactate 151.99
    diethyl carbonate 157.87
    propanediol butyl ether 232.01
    triethyl orthoformate 188.54
    p-tert-butyltoluene 117.07
    methyl 4-tert-butylbenzoate 180.5
    morpholine 595.72
    tert-butylamine 382.87
    n-dodecanol 109.57
    dimethoxymethane 235.24
    ethylene carbonate 186.02
    cyrene 194.85
    2-ethoxyethyl acetate 214.95
    2-ethylhexyl acetate 256.81
    1,2,4-trichlorobenzene 275.95
    4-methylpyridine 377.87
    dibutyl ether 291.38
    2,6-dimethyl-4-heptanol 153.85
    DEF 303.43
    dimethyl isosorbide 347.82
    tetrachloroethylene 436.7
    eugenol 181.88
    triacetin 245.93
    span 80 265.47
    1,4-butanediol 150.41
    1,1-dichloroethane 534.1
    2-methyl-1-pentanol 276.67
    methyl formate 138.08
    2-methyl-1-butanol 361.43
    n-decane 70.33
    butyronitrile 348.96
    3,7-dimethyl-1-octanol 217.55
    1-chlorooctane 177.72
    1-chlorotetradecane 76.7
    n-nonane 81.01
    undecane 52.55
    tert-butylcyclohexane 87.99
    cyclooctane 79.84
    cyclopentanol 405.72
    tetrahydropyran 663.01
    tert-amyl methyl ether 322.81
    2,5,8-trioxanonane 393.28
    1-hexene 369.56
    2-isopropoxyethanol 241.38
    2,2,2-trifluoroethanol 120.68
    methyl butyrate 236.56

    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