Pyruvic aldehyde dimethyl acetal

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  • Identifiers

    CAS number
    6342-56-9

    Molecular formula
    C5H10O3

    SMILES
    CC(=O)C(OC)OC

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Sweet 67.16%
    Ethereal 61.22%
    Fruity 51.83%
    Earthy 38.9%
    Mint 38.85%
    Caramellic 37.09%
    Camphoreous 36.35%
    Pungent 36.1%
    Sharp 33.98%
    Rummy 33.97%

     

    Flavor
    Fruity 49.34%
    Sweet 38.1%
    Nutty 35.41%
    Fatty 34.07%
    Green 31.96%
    Musty 31.93%
    Creamy 30.98%
    Bitter 30.94%
    Sharp 28.14%
    Pungent 28.14%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    -0.2

    pKa est.
    6.5 (neutral)

    Molecular weight
    118.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    143°C

    Flash point

    • 28.57 ˚C est.

  • Synonyms

    • 6342-56-9
    • 1,1-Dimethoxyacetone
    • Pyruvic aldehyde dimethyl acetal
    • 1,1-Dimethoxy-2-propanone
    • 2-Propanone, 1,1-dimethoxy-
    • Methylglyoxal dimethyl acetal
    • Dimethoxymethyl methyl ketone
    • Pyruvaldehyde dimethyl acetal
    • AI3-37790
    • NSC-50127
    • 3772KY264D
    • DTXSID6064244
    • RefChem:818615
    • DTXCID1043839
    • 228-735-4
    • 1,1-dimethoxypropan-2-one
    • Methylglyoxal 1,1-dimethyl acetal
    • 1,1-Dimethoxy acetone
    • Pyruvaldehyde, 1-(dimethyl acetal)
    • MFCD00008758
    • METHYLGLYOXAL DIMETHYLACETAL
    • NSC 50127
    • 1,1-dimethoxy-propan-2-one
    • dimethoxyacetone
    • Pyruvaldehyde-1-dimethyl acetal
    • EINECS 228-735-4
    • 2-Propanone,1-dimethoxy-
    • SCHEMBL317946
    • UNII-3772KY264D
    • 1,1-bis(methyloxy)-2-propanone
    • BB_SC-06949
    • NSC50127
    • BBL011442
    • Pyruvaldehyde-1,1-(dimethyl acetal)
    • SBB060142
    • STL146553
    • AKOS000120968
    • DB-054473
    • Methylglyoxal 1,1-dimethyl acetal, >=97%
    • CS-0015843
    • NS00043672
    • P1264
    • ST51046377
    • EN300-20704
    • E76515
    • F8880-7964
    • 6342-56-9

  • Applications

    Pyruvic aldehyde dimethyl acetal (CAS 6342-56-9) is primarily used as an intermediate in organic synthesis, acting as a protected form of pyruvaldehyde that can be hydrolyzed under acidic conditions to release pyruvaldehyde for subsequent transformations. It is commonly employed as a building block in pharmaceutical and agrochemical syntheses, enabling the introduction of 1,3-dicarbonyl-type functionality after deprotection or further derivatization. In industrial manufacturing, it is evaluated as a controlled-release precursor to pyruvaldehyde, providing routes to beta-keto aldehydes and related compounds. In materials science, it may serve as a reactive precursor for specialized monomers or as a source of masked carbonyl functionality that can be unveiled later in a formulation to create polymer or coating systems with aldehyde reactivity.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2969.93
    methanol 5128.73
    isopropanol 1789.86
    water 519.53
    ethyl acetate 1330.9
    n-propanol 1977.52
    acetone 1879.47
    n-butanol 1445.92
    acetonitrile 2838.49
    DMF 1763.2
    toluene 322.68
    isobutanol 1194.22
    1,4-dioxane 2179.35
    methyl acetate 1531.06
    THF 1847.56
    2-butanone 1078.67
    n-pentanol 803.74
    sec-butanol 1426.05
    n-hexane 190.6
    ethylene glycol 1375.26
    NMP 1329.64
    cyclohexane 468.98
    DMSO 1700.99
    n-butyl acetate 489.54
    n-octanol 278.54
    chloroform 3276.77
    n-propyl acetate 590.7
    acetic acid 6339.62
    dichloromethane 3224.82
    cyclohexanone 1237.9
    propylene glycol 829.43
    isopropyl acetate 546.68
    DMAc 1147.4
    2-ethoxyethanol 1876.98
    isopentanol 842.03
    n-heptane 149.74
    ethyl formate 1275.52
    1,2-dichloroethane 1510.33
    n-hexanol 540.47
    2-methoxyethanol 3400.01
    isobutyl acetate 264.32
    tetrachloromethane 971.08
    n-pentyl acetate 291.71
    transcutol 1323.19
    n-heptanol 249.78
    ethylbenzene 178.62
    MIBK 371.47
    2-propoxyethanol 982.3
    tert-butanol 1696.71
    MTBE 1009.17
    2-butoxyethanol 473.17
    propionic acid 1886.57
    o-xylene 247.41
    formic acid 5099.43
    diethyl ether 1542.34
    m-xylene 192.03
    p-xylene 267.81
    chlorobenzene 507.25
    dimethyl carbonate 366.64
    n-octane 55.1
    formamide 4391.7
    cyclopentanone 1169.95
    2-pentanone 809.22
    anisole 398.93
    cyclopentyl methyl ether 942.84
    gamma-butyrolactone 1615.87
    1-methoxy-2-propanol 1450.49
    pyridine 1221.16
    3-pentanone 658.64
    furfural 1466.3
    n-dodecane 32.58
    diethylene glycol 1076.0
    diisopropyl ether 295.69
    tert-amyl alcohol 1325.75
    acetylacetone 719.14
    n-hexadecane 36.01
    acetophenone 374.1
    methyl propionate 909.24
    isopentyl acetate 363.26
    trichloroethylene 2729.06
    n-nonanol 216.64
    cyclohexanol 1275.71
    benzyl alcohol 446.35
    2-ethylhexanol 298.02
    isooctanol 196.31
    dipropyl ether 448.06
    1,2-dichlorobenzene 498.18
    ethyl lactate 288.73
    propylene carbonate 781.75
    n-methylformamide 2127.08
    2-pentanol 874.3
    n-pentane 257.16
    1-propoxy-2-propanol 525.98
    1-methoxy-2-propyl acetate 375.97
    2-(2-methoxypropoxy) propanol 276.02
    mesitylene 133.37
    ε-caprolactone 1112.23
    p-cymene 150.06
    epichlorohydrin 1730.03
    1,1,1-trichloroethane 1488.29
    2-aminoethanol 1760.23
    morpholine-4-carbaldehyde 1396.92
    sulfolane 1345.38
    2,2,4-trimethylpentane 115.12
    2-methyltetrahydrofuran 1539.41
    n-hexyl acetate 383.63
    isooctane 58.71
    2-(2-butoxyethoxy)ethanol 392.41
    sec-butyl acetate 320.45
    tert-butyl acetate 488.77
    decalin 100.8
    glycerin 1293.63
    diglyme 964.84
    acrylic acid 1876.96
    isopropyl myristate 129.31
    n-butyric acid 1921.99
    acetyl acetate 766.43
    di(2-ethylhexyl) phthalate 126.91
    ethyl propionate 498.81
    nitromethane 4949.7
    1,2-diethoxyethane 545.7
    benzonitrile 533.77
    trioctyl phosphate 101.85
    1-bromopropane 905.28
    gamma-valerolactone 1575.17
    n-decanol 143.23
    triethyl phosphate 207.86
    4-methyl-2-pentanol 325.01
    propionitrile 1295.27
    vinylene carbonate 838.45
    1,1,2-trichlorotrifluoroethane 1639.36
    DMS 338.0
    cumene 139.22
    2-octanol 189.37
    2-hexanone 438.23
    octyl acetate 176.29
    limonene 252.41
    1,2-dimethoxyethane 1846.19
    ethyl orthosilicate 208.96
    tributyl phosphate 135.16
    diacetone alcohol 579.32
    N,N-dimethylaniline 290.34
    acrylonitrile 1483.23
    aniline 575.37
    1,3-propanediol 2177.92
    bromobenzene 437.48
    dibromomethane 2017.31
    1,1,2,2-tetrachloroethane 1821.03
    2-methyl-cyclohexyl acetate 268.78
    tetrabutyl urea 169.47
    diisobutyl methanol 175.91
    2-phenylethanol 303.41
    styrene 225.44
    dioctyl adipate 196.16
    dimethyl sulfate 510.47
    ethyl butyrate 431.62
    methyl lactate 417.22
    butyl lactate 216.56
    diethyl carbonate 306.26
    propanediol butyl ether 342.99
    triethyl orthoformate 308.02
    p-tert-butyltoluene 144.32
    methyl 4-tert-butylbenzoate 276.44
    morpholine 2333.73
    tert-butylamine 1078.13
    n-dodecanol 106.02
    dimethoxymethane 1281.47
    ethylene carbonate 733.74
    cyrene 355.95
    2-ethoxyethyl acetate 368.11
    2-ethylhexyl acetate 302.08
    1,2,4-trichlorobenzene 564.09
    4-methylpyridine 905.0
    dibutyl ether 290.78
    2,6-dimethyl-4-heptanol 175.91
    DEF 1013.91
    dimethyl isosorbide 473.43
    tetrachloroethylene 1848.27
    eugenol 269.55
    triacetin 329.43
    span 80 248.67
    1,4-butanediol 879.9
    1,1-dichloroethane 1513.2
    2-methyl-1-pentanol 575.31
    methyl formate 1714.59
    2-methyl-1-butanol 975.81
    n-decane 63.46
    butyronitrile 1143.63
    3,7-dimethyl-1-octanol 235.27
    1-chlorooctane 179.07
    1-chlorotetradecane 66.91
    n-nonane 70.21
    undecane 42.15
    tert-butylcyclohexane 92.92
    cyclooctane 122.83
    cyclopentanol 1316.11
    tetrahydropyran 1685.68
    tert-amyl methyl ether 770.01
    2,5,8-trioxanonane 495.84
    1-hexene 381.4
    2-isopropoxyethanol 900.33
    2,2,2-trifluoroethanol 2242.65
    methyl butyrate 698.01

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
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Rinse-off products applied to the hair with some hand contact
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Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
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Category 3
Products applied to the face/body using fingertips
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Products with significant anogenital exposure
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Category 4
Products related to fine fragrance
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Products with body and hand exposure, primarily rinse off
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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