2-Pentenoic acid, ethyl ester

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  • Identifiers

    CAS number
    24410-84-2

    Molecular formula
    C7H12O2

    SMILES
    CC/C=C/C(=O)OCC

  • Odor profile

    Fragrance
    Fruity 97.54%
    Green 75.39%
    Apple 69.46%
    Pineapple 63.91%
    Tropical 54.99%
    Ethereal 54.67%
    Sweet 52.88%
    Banana 49.07%
    Rummy 47.01%
    Sharp 44.21%

     

    Flavor
    Fruity 71.3%
    Green 39.04%
    Pineapple 32.72%
    Sweet 31.17%
    Tropical 30.09%
    Apple 28.22%
    Pungent 27.67%
    Rum 26.4%
    Ethereal 25.92%
    Fruit 25.73%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.7

    pKa est.
    8.21 (weak base)

    Molecular weight
    128.17 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    163°C

    Flash point

    • 40.46 ˚C est.

  • Synonyms

    • 24410-84-2
    • Ethyl trans-2-pentenoate
    • ethyl (E)-pent-2-enoate
    • ETHYL (2E)-PENT-2-ENOATE
    • (E)-Ethyl pent-2-enoate
    • (Z)-2-Pentenoic acid ethyl ester
    • 2-Pentenoic acid, ethylester, (2E)-
    • 2-Pentenoic acid, ethyl ester
    • Ethyl trans-pent-2-enoate
    • 27805-84-1
    • ethyl-(2E)-pent-2-enoate
    • Ethyl trans-pent-2-enoate 99%
    • (E)-2-Pentenoic acid ethyl ester
    • Ethyl(E)-2-pentenoate
    • Ethyl (E)-2-Pentenoate
    • SCHEMBL94678
    • Ethyl (2E)-pent-2-enoate, tech
    • ALBB-032753
    • MFCD06204561
    • AKOS006230266
    • LS-12229
    • CS-0361328

  • Applications

    2-Pentenoic acid, ethyl ester (CAS 24410-84-2) is primarily used as an intermediate in organic synthesis, particularly for fragrance and flavor compound development. It also serves as a reactive monomer or comonomer in the production of specialty polymers and unsaturated polyesters used in coatings and inks. In cosmetics and personal care, it is used as a precursor to fragrance ingredients and ester-based components. It can serve as a convenient building block for further chemical transformations in industrial manufacturing. Use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1354.47
    methanol 1759.86
    isopropanol 1100.75
    water 1.61
    ethyl acetate 591.22
    n-propanol 1039.81
    acetone 1011.97
    n-butanol 931.5
    acetonitrile 892.02
    DMF 2175.84
    toluene 433.9
    isobutanol 738.89
    1,4-dioxane 1232.4
    methyl acetate 632.81
    THF 1337.56
    2-butanone 717.75
    n-pentanol 710.4
    sec-butanol 941.55
    n-hexane 262.56
    ethylene glycol 304.08
    NMP 1513.69
    cyclohexane 406.47
    DMSO 1452.54
    n-butyl acetate 572.19
    n-octanol 423.75
    chloroform 2334.08
    n-propyl acetate 384.56
    acetic acid 1332.78
    dichloromethane 1988.96
    cyclohexanone 1167.75
    propylene glycol 398.82
    isopropyl acetate 337.57
    DMAc 1266.89
    2-ethoxyethanol 649.9
    isopentanol 677.32
    n-heptane 129.25
    ethyl formate 503.9
    1,2-dichloroethane 1142.01
    n-hexanol 744.85
    2-methoxyethanol 1155.61
    isobutyl acetate 230.69
    tetrachloromethane 363.74
    n-pentyl acetate 384.04
    transcutol 1457.25
    n-heptanol 303.86
    ethylbenzene 294.44
    MIBK 323.97
    2-propoxyethanol 824.4
    tert-butanol 1137.69
    MTBE 660.95
    2-butoxyethanol 432.42
    propionic acid 828.73
    o-xylene 285.07
    formic acid 387.93
    diethyl ether 678.21
    m-xylene 269.03
    p-xylene 377.32
    chlorobenzene 739.58
    dimethyl carbonate 230.56
    n-octane 60.81
    formamide 463.24
    cyclopentanone 1167.63
    2-pentanone 581.61
    anisole 494.24
    cyclopentyl methyl ether 655.6
    gamma-butyrolactone 1237.44
    1-methoxy-2-propanol 818.05
    pyridine 1384.37
    3-pentanone 438.03
    furfural 1183.76
    n-dodecane 54.76
    diethylene glycol 599.86
    diisopropyl ether 181.86
    tert-amyl alcohol 915.1
    acetylacetone 527.04
    n-hexadecane 61.97
    acetophenone 454.05
    methyl propionate 502.84
    isopentyl acetate 478.85
    trichloroethylene 2228.85
    n-nonanol 347.74
    cyclohexanol 927.09
    benzyl alcohol 490.06
    2-ethylhexanol 429.41
    isooctanol 240.35
    dipropyl ether 361.38
    1,2-dichlorobenzene 593.47
    ethyl lactate 235.83
    propylene carbonate 691.33
    n-methylformamide 941.12
    2-pentanol 604.37
    n-pentane 209.49
    1-propoxy-2-propanol 578.78
    1-methoxy-2-propyl acetate 417.85
    2-(2-methoxypropoxy) propanol 476.73
    mesitylene 188.77
    ε-caprolactone 932.35
    p-cymene 184.02
    epichlorohydrin 1259.51
    1,1,1-trichloroethane 1066.49
    2-aminoethanol 564.77
    morpholine-4-carbaldehyde 1131.05
    sulfolane 1534.1
    2,2,4-trimethylpentane 91.37
    2-methyltetrahydrofuran 1056.65
    n-hexyl acetate 640.39
    isooctane 68.2
    2-(2-butoxyethoxy)ethanol 603.02
    sec-butyl acetate 251.94
    tert-butyl acetate 372.71
    decalin 144.77
    glycerin 473.21
    diglyme 990.73
    acrylic acid 785.36
    isopropyl myristate 225.95
    n-butyric acid 1028.5
    acetyl acetate 363.85
    di(2-ethylhexyl) phthalate 236.56
    ethyl propionate 357.12
    nitromethane 1365.04
    1,2-diethoxyethane 548.04
    benzonitrile 739.45
    trioctyl phosphate 176.14
    1-bromopropane 839.44
    gamma-valerolactone 1287.79
    n-decanol 249.59
    triethyl phosphate 201.71
    4-methyl-2-pentanol 298.59
    propionitrile 789.84
    vinylene carbonate 748.66
    1,1,2-trichlorotrifluoroethane 976.33
    DMS 374.14
    cumene 195.95
    2-octanol 261.48
    2-hexanone 478.72
    octyl acetate 299.85
    limonene 296.92
    1,2-dimethoxyethane 1066.29
    ethyl orthosilicate 195.15
    tributyl phosphate 222.5
    diacetone alcohol 471.54
    N,N-dimethylaniline 373.63
    acrylonitrile 947.42
    aniline 589.37
    1,3-propanediol 728.94
    bromobenzene 789.22
    dibromomethane 1435.65
    1,1,2,2-tetrachloroethane 1742.82
    2-methyl-cyclohexyl acetate 315.74
    tetrabutyl urea 311.24
    diisobutyl methanol 223.13
    2-phenylethanol 451.65
    styrene 424.35
    dioctyl adipate 330.96
    dimethyl sulfate 388.89
    ethyl butyrate 361.12
    methyl lactate 304.46
    butyl lactate 318.35
    diethyl carbonate 298.46
    propanediol butyl ether 477.2
    triethyl orthoformate 265.33
    p-tert-butyltoluene 181.34
    methyl 4-tert-butylbenzoate 395.0
    morpholine 1539.12
    tert-butylamine 798.72
    n-dodecanol 193.31
    dimethoxymethane 688.98
    ethylene carbonate 556.16
    cyrene 360.66
    2-ethoxyethyl acetate 401.58
    2-ethylhexyl acetate 372.2
    1,2,4-trichlorobenzene 640.57
    4-methylpyridine 1280.62
    dibutyl ether 412.01
    2,6-dimethyl-4-heptanol 223.13
    DEF 878.37
    dimethyl isosorbide 609.1
    tetrachloroethylene 1110.89
    eugenol 429.48
    triacetin 436.27
    span 80 480.95
    1,4-butanediol 351.35
    1,1-dichloroethane 1247.09
    2-methyl-1-pentanol 588.85
    methyl formate 632.55
    2-methyl-1-butanol 697.0
    n-decane 87.84
    butyronitrile 907.31
    3,7-dimethyl-1-octanol 359.48
    1-chlorooctane 294.8
    1-chlorotetradecane 122.64
    n-nonane 91.7
    undecane 66.39
    tert-butylcyclohexane 129.55
    cyclooctane 98.6
    cyclopentanol 958.72
    tetrahydropyran 1332.13
    tert-amyl methyl ether 495.88
    2,5,8-trioxanonane 736.45
    1-hexene 657.46
    2-isopropoxyethanol 419.08
    2,2,2-trifluoroethanol 303.68
    methyl butyrate 540.29

    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