4-Ethyl-1,3-dioxolane

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  • Identifiers

    CAS number
    29921-38-8

    Molecular formula
    C5H10O2

    SMILES
    CCC1COCO1

    Safety labels

  • Odor profile

    Fragrance
    Ethereal 69.53%
    Fruity 66.42%
    Sweet 57.25%
    Fermented 49.78%
    Green 46.18%
    Solvent 44.66%
    Alcoholic 38.75%
    Fresh 33.26%
    Rummy 32.18%
    Buttery 31.73%

     

    Flavor
    Sweet 54.55%
    Caramel 49.35%
    Vegetable 35.88%
    Nutty 30.13%
    Warm 29.4%
    Herbal 29.28%
    Oily 28.38%
    Cauliflower 24.3%
    Green 24.25%
    Burnt 23.76%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    0.8

    pKa est.
    6.75 (neutral)

    Molecular weight
    102.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    123°C

    Flash point

    • 21.82 ˚C est.

  • Synonyms

    • 4-Ethyl-1,3-dioxolane
    • 1,3-Dioxolane, 4-ethyl-
    • DTXSID20952375
    • 1,3Dioxolane, 4ethyl
    • RefChem:98852
    • DTXCID301380468
    • KWKXQCMPXDOLFS-UHFFFAOYSA-N
    • 29921-38-8
    • 1,3-Dioxolane,4-ethyl-
    • 4-ethyldioxolane
    • SCHEMBL571429
    • SCHEMBL1926350
    • SCHEMBL1937017
    • SCHEMBL3770048
    • SCHEMBL3770052
    • SCHEMBL28653803
    • 29921-38-8

  • Applications

    4-Ethyl-1,3-dioxolane (CAS 29921-38-8) is used primarily as a specialty solvent and reaction medium in industrial manufacturing, notably in coatings, inks, adhesive formulations, and cleaning processes. It also serves as an intermediate in organic synthesis and as a precursor for protecting-group chemistry via the 1,3-dioxolane acetal ring. In polymer chemistry, it has potential to participate as a monomer or comonomer to form acetal-type polymers or related materials. Specific applications depend on local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1898.42
    methanol 2263.05
    isopropanol 1031.83
    water 29.22
    ethyl acetate 793.26
    n-propanol 1023.43
    acetone 830.11
    n-butanol 922.11
    acetonitrile 1164.61
    DMF 612.42
    toluene 242.56
    isobutanol 640.43
    1,4-dioxane 1108.94
    methyl acetate 631.88
    THF 1446.15
    2-butanone 559.33
    n-pentanol 535.21
    sec-butanol 703.84
    n-hexane 67.96
    ethylene glycol 415.36
    NMP 555.26
    cyclohexane 137.39
    DMSO 967.78
    n-butyl acetate 483.87
    n-octanol 201.7
    chloroform 2847.51
    n-propyl acetate 324.89
    acetic acid 2691.26
    dichloromethane 2459.17
    cyclohexanone 658.8
    propylene glycol 388.04
    isopropyl acetate 368.86
    DMAc 435.47
    2-ethoxyethanol 767.83
    isopentanol 608.31
    n-heptane 69.98
    ethyl formate 537.22
    1,2-dichloroethane 955.96
    n-hexanol 518.77
    2-methoxyethanol 1262.85
    isobutyl acetate 190.12
    tetrachloromethane 495.25
    n-pentyl acetate 238.26
    transcutol 1567.22
    n-heptanol 196.19
    ethylbenzene 82.94
    MIBK 262.98
    2-propoxyethanol 789.99
    tert-butanol 860.92
    MTBE 498.07
    2-butoxyethanol 369.27
    propionic acid 901.45
    o-xylene 130.34
    formic acid 1126.91
    diethyl ether 756.9
    m-xylene 147.42
    p-xylene 119.8
    chlorobenzene 430.89
    dimethyl carbonate 139.06
    n-octane 24.59
    formamide 891.49
    cyclopentanone 749.39
    2-pentanone 471.36
    anisole 249.07
    cyclopentyl methyl ether 556.51
    gamma-butyrolactone 900.61
    1-methoxy-2-propanol 718.76
    pyridine 886.52
    3-pentanone 306.87
    furfural 837.15
    n-dodecane 21.18
    diethylene glycol 694.65
    diisopropyl ether 159.41
    tert-amyl alcohol 573.5
    acetylacetone 473.1
    n-hexadecane 23.46
    acetophenone 204.05
    methyl propionate 405.47
    isopentyl acetate 328.41
    trichloroethylene 1715.37
    n-nonanol 170.66
    cyclohexanol 582.65
    benzyl alcohol 265.91
    2-ethylhexanol 244.67
    isooctanol 158.66
    dipropyl ether 300.63
    1,2-dichlorobenzene 335.99
    ethyl lactate 152.02
    propylene carbonate 503.19
    n-methylformamide 604.53
    2-pentanol 503.57
    n-pentane 109.7
    1-propoxy-2-propanol 533.63
    1-methoxy-2-propyl acetate 344.43
    2-(2-methoxypropoxy) propanol 293.15
    mesitylene 94.33
    ε-caprolactone 620.69
    p-cymene 87.62
    epichlorohydrin 992.82
    1,1,1-trichloroethane 970.26
    2-aminoethanol 715.85
    morpholine-4-carbaldehyde 684.92
    sulfolane 729.21
    2,2,4-trimethylpentane 48.82
    2-methyltetrahydrofuran 1009.98
    n-hexyl acetate 291.11
    isooctane 38.41
    2-(2-butoxyethoxy)ethanol 436.71
    sec-butyl acetate 199.76
    tert-butyl acetate 289.77
    decalin 43.18
    glycerin 492.16
    diglyme 715.57
    acrylic acid 786.98
    isopropyl myristate 110.58
    n-butyric acid 1232.79
    acetyl acetate 526.72
    di(2-ethylhexyl) phthalate 115.59
    ethyl propionate 242.98
    nitromethane 1599.67
    1,2-diethoxyethane 526.15
    benzonitrile 393.62
    trioctyl phosphate 81.0
    1-bromopropane 634.55
    gamma-valerolactone 867.39
    n-decanol 119.61
    triethyl phosphate 119.46
    4-methyl-2-pentanol 233.34
    propionitrile 691.56
    vinylene carbonate 489.86
    1,1,2-trichlorotrifluoroethane 837.98
    DMS 182.67
    cumene 68.41
    2-octanol 128.0
    2-hexanone 292.2
    octyl acetate 144.51
    limonene 148.24
    1,2-dimethoxyethane 750.72
    ethyl orthosilicate 121.66
    tributyl phosphate 107.13
    diacetone alcohol 342.95
    N,N-dimethylaniline 147.02
    acrylonitrile 732.9
    aniline 453.56
    1,3-propanediol 905.73
    bromobenzene 427.18
    dibromomethane 1513.7
    1,1,2,2-tetrachloroethane 1100.11
    2-methyl-cyclohexyl acetate 181.95
    tetrabutyl urea 120.49
    diisobutyl methanol 135.29
    2-phenylethanol 274.23
    styrene 128.59
    dioctyl adipate 163.36
    dimethyl sulfate 187.23
    ethyl butyrate 291.68
    methyl lactate 197.17
    butyl lactate 169.55
    diethyl carbonate 181.72
    propanediol butyl ether 301.56
    triethyl orthoformate 191.26
    p-tert-butyltoluene 86.16
    methyl 4-tert-butylbenzoate 192.96
    morpholine 1283.44
    tert-butylamine 570.0
    n-dodecanol 91.51
    dimethoxymethane 480.71
    ethylene carbonate 418.42
    cyrene 225.64
    2-ethoxyethyl acetate 309.46
    2-ethylhexyl acetate 239.64
    1,2,4-trichlorobenzene 398.12
    4-methylpyridine 638.27
    dibutyl ether 225.19
    2,6-dimethyl-4-heptanol 135.29
    DEF 467.65
    dimethyl isosorbide 393.69
    tetrachloroethylene 867.46
    eugenol 206.73
    triacetin 260.88
    span 80 263.66
    1,4-butanediol 363.95
    1,1-dichloroethane 1090.79
    2-methyl-1-pentanol 375.42
    methyl formate 414.94
    2-methyl-1-butanol 562.37
    n-decane 35.94
    butyronitrile 788.61
    3,7-dimethyl-1-octanol 202.77
    1-chlorooctane 124.5
    1-chlorotetradecane 52.05
    n-nonane 35.66
    undecane 26.18
    tert-butylcyclohexane 43.07
    cyclooctane 40.97
    cyclopentanol 658.98
    tetrahydropyran 1017.69
    tert-amyl methyl ether 325.29
    2,5,8-trioxanonane 492.5
    1-hexene 217.25
    2-isopropoxyethanol 451.36
    2,2,2-trifluoroethanol 649.33
    methyl butyrate 336.76

    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