2-(4-Ethylphenyl)acetaldehyde

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  • Identifiers

    CAS number
    68083-54-5

    Molecular formula
    C10H12O

    SMILES
    CCC1=CC=C(C=C1)CC=O

  • Odor profile

    Fragrance
    Green 91.78%
    Floral 57.64%
    Sweet 55.39%
    Fresh 52.46%
    Aldehydic 45.52%
    Cortex 45.44%
    Melon 44.84%
    Leafy 44.57%
    Hyacinth 43.78%
    Woody 42.71%

     

    Flavor
    Green 81.34%
    Sweet 62.71%
    Bitter 61.81%
    Hyacinth 54.98%
    Floral 54.46%
    Fresh 51.84%
    Spicy 44.35%
    Honey 41.96%
    Cinnamon 41.26%
    Leaf 40.82%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.1

    pKa est.
    6.77 (neutral)

    Molecular weight
    148.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    244°C

    Flash point

    • 97.75 ˚C est.

  • Synonyms

    • (4-Ethylphenyl)acetaldehyde
    • 68083-54-5
    • 2-(4-ethylphenyl)acetaldehyde
    • p-Ethylphenylacetaldehyde
    • Benzeneacetaldehyde, 4-ethyl-
    • 58N3GW8AKH
    • EINECS 268-403-6
    • DTXSID8071063
    • UNII-58N3GW8AKH
    • para-ethyl phenyl acetaldehyde
    • SCHEMBL2557761
    • DTXCID2045496
    • PWBRLMKOCGLZAH-UHFFFAOYSA-N
    • AKOS011896927
    • DA-48689
    • CS-0296636
    • NS00036394
    • EN300-1250771
    • 268-403-6

  • Applications

    2-(4-Ethylphenyl)acetaldehyde is primarily used as an aromatic building block in fragrance chemistry, serving as an intermediate for the synthesis of downstream aroma compounds and odor notes. It is commonly evaluated as a precursor in flavor and fragrance applications and can function as a fragrance ingredient in cosmetics and personal care formulations. In household products and cleaning formulations, it may contribute fragrance profiles as part of scent systems. In industrial manufacturing, the aldehyde can be used as an intermediate to prepare more complex substituted aryl compounds, including dyes or pharmaceutical intermediates, depending on the synthetic route. Use is subject to local regulations and formulation limits, with suppliers providing handling and purity guidance.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 793.25
    methanol 863.11
    isopropanol 430.03
    water 0.37
    ethyl acetate 1402.43
    n-propanol 692.0
    acetone 1174.11
    n-butanol 484.13
    acetonitrile 1413.32
    DMF 1281.42
    toluene 531.69
    isobutanol 335.1
    1,4-dioxane 1879.14
    methyl acetate 1284.42
    THF 927.88
    2-butanone 1094.5
    n-pentanol 347.06
    sec-butanol 339.36
    n-hexane 62.68
    ethylene glycol 155.09
    NMP 734.73
    cyclohexane 72.2
    DMSO 1639.54
    n-butyl acetate 649.71
    n-octanol 88.84
    chloroform 2308.21
    n-propyl acetate 622.4
    acetic acid 532.08
    dichloromethane 2361.47
    cyclohexanone 1029.33
    propylene glycol 188.94
    isopropyl acetate 481.39
    DMAc 724.89
    2-ethoxyethanol 557.1
    isopentanol 322.35
    n-heptane 29.78
    ethyl formate 526.76
    1,2-dichloroethane 1975.36
    n-hexanol 393.26
    2-methoxyethanol 895.22
    isobutyl acetate 299.65
    tetrachloromethane 268.49
    n-pentyl acetate 199.18
    transcutol 2297.57
    n-heptanol 104.77
    ethylbenzene 240.11
    MIBK 318.0
    2-propoxyethanol 635.66
    tert-butanol 473.65
    MTBE 537.84
    2-butoxyethanol 243.03
    propionic acid 661.17
    o-xylene 225.08
    formic acid 184.52
    diethyl ether 1063.39
    m-xylene 260.31
    p-xylene 241.42
    chlorobenzene 711.3
    dimethyl carbonate 292.97
    n-octane 9.81
    formamide 426.67
    cyclopentanone 1030.67
    2-pentanone 715.61
    anisole 533.22
    cyclopentyl methyl ether 581.55
    gamma-butyrolactone 1214.29
    1-methoxy-2-propanol 533.77
    pyridine 1489.74
    3-pentanone 653.3
    furfural 1012.49
    n-dodecane 7.13
    diethylene glycol 419.7
    diisopropyl ether 160.48
    tert-amyl alcohol 352.19
    acetylacetone 695.6
    n-hexadecane 8.64
    acetophenone 391.72
    methyl propionate 925.23
    isopentyl acetate 468.72
    trichloroethylene 2891.95
    n-nonanol 80.6
    cyclohexanol 354.54
    benzyl alcohol 347.37
    2-ethylhexanol 204.63
    isooctanol 87.03
    dipropyl ether 347.43
    1,2-dichlorobenzene 524.29
    ethyl lactate 170.37
    propylene carbonate 571.22
    n-methylformamide 836.47
    2-pentanol 269.1
    n-pentane 36.9
    1-propoxy-2-propanol 404.36
    1-methoxy-2-propyl acetate 551.65
    2-(2-methoxypropoxy) propanol 277.66
    mesitylene 134.07
    ε-caprolactone 858.26
    p-cymene 93.22
    epichlorohydrin 1632.57
    1,1,1-trichloroethane 1280.17
    2-aminoethanol 333.53
    morpholine-4-carbaldehyde 961.81
    sulfolane 1120.09
    2,2,4-trimethylpentane 19.66
    2-methyltetrahydrofuran 867.96
    n-hexyl acetate 266.21
    isooctane 17.83
    2-(2-butoxyethoxy)ethanol 397.19
    sec-butyl acetate 332.98
    tert-butyl acetate 430.44
    decalin 44.86
    glycerin 242.89
    diglyme 860.59
    acrylic acid 475.91
    isopropyl myristate 103.24
    n-butyric acid 689.69
    acetyl acetate 494.3
    di(2-ethylhexyl) phthalate 93.81
    ethyl propionate 569.68
    nitromethane 1493.85
    1,2-diethoxyethane 795.63
    benzonitrile 538.88
    trioctyl phosphate 61.22
    1-bromopropane 853.24
    gamma-valerolactone 1303.25
    n-decanol 61.33
    triethyl phosphate 142.54
    4-methyl-2-pentanol 133.13
    propionitrile 930.33
    vinylene carbonate 574.39
    1,1,2-trichlorotrifluoroethane 788.75
    DMS 349.73
    cumene 119.36
    2-octanol 62.59
    2-hexanone 548.93
    octyl acetate 120.66
    limonene 137.1
    1,2-dimethoxyethane 1046.5
    ethyl orthosilicate 142.65
    tributyl phosphate 96.77
    diacetone alcohol 390.99
    N,N-dimethylaniline 253.62
    acrylonitrile 1108.76
    aniline 622.88
    1,3-propanediol 406.83
    bromobenzene 747.48
    dibromomethane 1462.37
    1,1,2,2-tetrachloroethane 1957.5
    2-methyl-cyclohexyl acetate 231.05
    tetrabutyl urea 119.87
    diisobutyl methanol 107.39
    2-phenylethanol 334.84
    styrene 382.32
    dioctyl adipate 162.78
    dimethyl sulfate 392.46
    ethyl butyrate 416.51
    methyl lactate 223.95
    butyl lactate 159.69
    diethyl carbonate 274.58
    propanediol butyl ether 189.26
    triethyl orthoformate 240.81
    p-tert-butyltoluene 87.73
    methyl 4-tert-butylbenzoate 205.16
    morpholine 1936.0
    tert-butylamine 287.99
    n-dodecanol 48.2
    dimethoxymethane 743.53
    ethylene carbonate 500.55
    cyrene 226.23
    2-ethoxyethyl acetate 392.75
    2-ethylhexyl acetate 365.77
    1,2,4-trichlorobenzene 589.61
    4-methylpyridine 1157.08
    dibutyl ether 223.31
    2,6-dimethyl-4-heptanol 107.39
    DEF 868.88
    dimethyl isosorbide 471.01
    tetrachloroethylene 1290.34
    eugenol 213.27
    triacetin 280.46
    span 80 193.53
    1,4-butanediol 151.6
    1,1-dichloroethane 1615.33
    2-methyl-1-pentanol 260.36
    methyl formate 510.98
    2-methyl-1-butanol 303.39
    n-decane 12.82
    butyronitrile 673.78
    3,7-dimethyl-1-octanol 121.29
    1-chlorooctane 82.69
    1-chlorotetradecane 30.39
    n-nonane 12.61
    undecane 9.19
    tert-butylcyclohexane 41.64
    cyclooctane 24.29
    cyclopentanol 314.66
    tetrahydropyran 1341.39
    tert-amyl methyl ether 328.24
    2,5,8-trioxanonane 522.15
    1-hexene 321.3
    2-isopropoxyethanol 362.15
    2,2,2-trifluoroethanol 165.74
    methyl butyrate 713.87

    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