2,4-Dimethyl-1,3-dioxolane

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  • Identifiers

    CAS number
    3390-12-3

    Molecular formula
    C5H10O2

    SMILES
    CC1COC(O1)C

    Safety labels

    Flammable
    Flammable

  • Odor profile

    Fragrance
    Fruity 93.86%
    Ethereal 84.65%
    Green 83.12%
    Sweet 67.36%
    Fermented 47.12%
    Alcoholic 45.24%
    Rummy 43.51%
    Winey 41.29%
    Fresh 39.51%
    Buttery 35.6%

     

    Flavor
    Green 60.2%
    Vegetable 53.01%
    Earthy 42.3%
    Nutty 41.95%
    Sweet 36.17%
    Caramel 35.77%
    Potato 35.1%
    Musty 32.96%
    Raw 28.51%
    Roasted 28.25%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    0.7

    pKa est.
    6.79 (neutral)

    Molecular weight
    102.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    97°C

    Flash point

    • 5.81 ˚C est.

    Solubility expt.

    • Slightly soluble in water
    • Soluble (in ethanol)

  • Synonyms

    • 2,4-Dimethyl-1,3-dioxolane
    • 3390-12-3
    • 1,3-Dioxolane, 2,4-dimethyl-
    • propylene acetal
    • ID1YRY20SD
    • 2,4-DIMETHYL, 1,3-DIOXALONE
    • Acetaldehydepropylenegylcolacetal
    • 1,3-Dioxolane, 2,4-dimethyl, cis
    • 100760-25-6
    • FEMA NO. 4099
    • DTXSID90863166
    • EINECS 222-221-3
    • ACETALDEHYDE CYCLIC PROPYLENE ACETAL
    • 2,4-DIMETHYL-1,3-DIOXOLANE [FHFI]
    • 2,4-Dimethyl,1,3-dioxalone
    • 1192-36-5
    • MFCD00190653
    • UNII-ID1YRY20SD
    • SCHEMBL301680
    • DTXCID30811828
    • CHEBI:173351
    • AKOS006275203
    • 1,3-Dioxolane, 2,4-dimethyl, trans
    • AS-82774
    • DB-239530
    • D5748
    • NS00048612
    • 1,3-Dioxolane, 2,4-dimethyl-, (2R-cis)-
    • EN300-134030
    • F87919
    • Q27280665
    • 222-221-3

  • Applications

    2,4-Dimethyl-1,3-dioxolane is a stable cyclic acetal widely employed in organic laboratories as a carbonyl-protecting reagent during the multistep synthesis of complex molecules, while also serving as a medium-polarity solvent that can replace halogenated solvents, an important intermediate for manufacturing pharmaceuticals, agrochemicals, flavor and fragrance ingredients, and a biofuel additive that enhances volatility and lowers emissions; it further finds use in coatings and ink formulations thanks to its good solvency and appropriate evaporation rate.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1675.43
    methanol 2314.1
    isopropanol 1184.74
    water 297.25
    ethyl acetate 745.91
    n-propanol 1104.26
    acetone 965.0
    n-butanol 943.24
    acetonitrile 1179.03
    DMF 1000.6
    toluene 343.0
    isobutanol 768.65
    1,4-dioxane 1268.6
    methyl acetate 750.93
    THF 1219.29
    2-butanone 692.52
    n-pentanol 556.97
    sec-butanol 945.34
    n-hexane 120.88
    ethylene glycol 739.49
    NMP 971.5
    cyclohexane 168.18
    DMSO 927.61
    n-butyl acetate 234.62
    n-octanol 260.69
    chloroform 2341.78
    n-propyl acetate 251.58
    acetic acid 2025.16
    dichloromethane 2054.55
    cyclohexanone 683.75
    propylene glycol 705.38
    isopropyl acetate 370.77
    DMAc 1004.84
    2-ethoxyethanol 886.76
    isopentanol 631.29
    n-heptane 74.44
    ethyl formate 485.54
    1,2-dichloroethane 828.58
    n-hexanol 450.95
    2-methoxyethanol 1526.72
    isobutyl acetate 157.67
    tetrachloromethane 557.55
    n-pentyl acetate 211.38
    transcutol 1352.31
    n-heptanol 208.88
    ethylbenzene 119.83
    MIBK 251.18
    2-propoxyethanol 729.85
    tert-butanol 1057.46
    MTBE 647.69
    2-butoxyethanol 377.5
    propionic acid 979.51
    o-xylene 214.88
    formic acid 1393.56
    diethyl ether 807.03
    m-xylene 205.48
    p-xylene 167.03
    chlorobenzene 427.65
    dimethyl carbonate 216.93
    n-octane 31.79
    formamide 1194.68
    cyclopentanone 774.76
    2-pentanone 475.99
    anisole 327.51
    cyclopentyl methyl ether 584.41
    gamma-butyrolactone 935.75
    1-methoxy-2-propanol 938.62
    pyridine 802.99
    3-pentanone 407.3
    furfural 882.24
    n-dodecane 29.24
    diethylene glycol 730.07
    diisopropyl ether 191.5
    tert-amyl alcohol 870.51
    acetylacetone 499.74
    n-hexadecane 31.43
    acetophenone 242.0
    methyl propionate 543.12
    isopentyl acetate 188.06
    trichloroethylene 1357.07
    n-nonanol 222.08
    cyclohexanol 699.69
    benzyl alcohol 332.08
    2-ethylhexanol 208.75
    isooctanol 164.42
    dipropyl ether 242.88
    1,2-dichlorobenzene 332.82
    ethyl lactate 171.93
    propylene carbonate 431.18
    n-methylformamide 843.61
    2-pentanol 578.9
    n-pentane 158.66
    1-propoxy-2-propanol 429.9
    1-methoxy-2-propyl acetate 277.11
    2-(2-methoxypropoxy) propanol 319.17
    mesitylene 117.28
    ε-caprolactone 608.07
    p-cymene 90.52
    epichlorohydrin 997.15
    1,1,1-trichloroethane 917.82
    2-aminoethanol 1120.57
    morpholine-4-carbaldehyde 964.65
    sulfolane 739.98
    2,2,4-trimethylpentane 76.38
    2-methyltetrahydrofuran 1035.44
    n-hexyl acetate 323.6
    isooctane 44.34
    2-(2-butoxyethoxy)ethanol 428.52
    sec-butyl acetate 188.07
    tert-butyl acetate 289.94
    decalin 63.36
    glycerin 825.29
    diglyme 697.42
    acrylic acid 887.87
    isopropyl myristate 118.21
    n-butyric acid 898.21
    acetyl acetate 495.78
    di(2-ethylhexyl) phthalate 118.02
    ethyl propionate 244.19
    nitromethane 1537.83
    1,2-diethoxyethane 400.06
    benzonitrile 361.69
    trioctyl phosphate 80.62
    1-bromopropane 635.63
    gamma-valerolactone 992.47
    n-decanol 153.3
    triethyl phosphate 105.78
    4-methyl-2-pentanol 261.44
    propionitrile 685.32
    vinylene carbonate 440.94
    1,1,2-trichlorotrifluoroethane 863.3
    DMS 208.16
    cumene 97.19
    2-octanol 156.32
    2-hexanone 253.67
    octyl acetate 157.18
    limonene 147.06
    1,2-dimethoxyethane 805.95
    ethyl orthosilicate 107.86
    tributyl phosphate 103.81
    diacetone alcohol 376.26
    N,N-dimethylaniline 214.21
    acrylonitrile 732.84
    aniline 565.83
    1,3-propanediol 1027.37
    bromobenzene 406.25
    dibromomethane 1348.9
    1,1,2,2-tetrachloroethane 1025.83
    2-methyl-cyclohexyl acetate 148.58
    tetrabutyl urea 129.15
    diisobutyl methanol 115.13
    2-phenylethanol 263.84
    styrene 171.07
    dioctyl adipate 161.55
    dimethyl sulfate 300.5
    ethyl butyrate 186.5
    methyl lactate 316.38
    butyl lactate 162.64
    diethyl carbonate 123.02
    propanediol butyl ether 325.03
    triethyl orthoformate 141.96
    p-tert-butyltoluene 92.46
    methyl 4-tert-butylbenzoate 225.94
    morpholine 1382.39
    tert-butylamine 721.17
    n-dodecanol 112.65
    dimethoxymethane 665.89
    ethylene carbonate 368.64
    cyrene 258.48
    2-ethoxyethyl acetate 289.54
    2-ethylhexyl acetate 148.82
    1,2,4-trichlorobenzene 421.51
    4-methylpyridine 739.44
    dibutyl ether 220.65
    2,6-dimethyl-4-heptanol 115.13
    DEF 593.31
    dimethyl isosorbide 396.5
    tetrachloroethylene 768.54
    eugenol 227.37
    triacetin 278.97
    span 80 270.4
    1,4-butanediol 460.76
    1,1-dichloroethane 1093.26
    2-methyl-1-pentanol 418.22
    methyl formate 543.01
    2-methyl-1-butanol 685.4
    n-decane 48.42
    butyronitrile 638.41
    3,7-dimethyl-1-octanol 232.04
    1-chlorooctane 149.88
    1-chlorotetradecane 62.67
    n-nonane 49.27
    undecane 35.49
    tert-butylcyclohexane 64.12
    cyclooctane 54.65
    cyclopentanol 765.27
    tetrahydropyran 907.49
    tert-amyl methyl ether 484.52
    2,5,8-trioxanonane 487.33
    1-hexene 271.18
    2-isopropoxyethanol 536.4
    2,2,2-trifluoroethanol 758.23
    methyl butyrate 291.29

    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