Benzaldehyde propylene glycol acetal

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  • Identifiers

    CAS number
    2568-25-4

    Molecular formula
    C10H12O2

    SMILES
    CC1COC(O1)C2=CC=CC=C2

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 85.9%
    Floral 82.8%
    Sweet 76.73%
    Cherry 54.46%
    Almond 53.3%
    Bitter 40.38%
    Rose 38.44%
    Anisic 37.39%
    Aromatic 36.31%
    Woody 34.25%

     

    Flavor
    Sweet 78.14%
    Bitter 68.95%
    Woody 61.33%
    Floral 38.3%
    Spicy 29.37%
    Herbal 28.7%
    Naphthalic 26.78%
    Nutty 26.27%
    Tobacco 25.91%
    Warm 25.81%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.8

    pKa est.
    5.5 (weak acid)

    Molecular weight
    164.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately slow

    Boiling point est.
    238°C

    Flash point

    • 90.61 ˚C est.

    Solubility expt.

    • slightly soluble in water; soluble in oils
    • miscible at room temperature (in ethanol)

  • Synonyms

    • 4-Methyl-2-phenyl-1,3-dioxolane
    • 2568-25-4
    • Benzaldehyde propylene glycol acetal
    • 1,3-Dioxolane, 4-methyl-2-phenyl-
    • FEMA No. 2130
    • 4-Methyl-2-phenyl-m-dioxolane
    • ELQ3FTL5B1
    • UNII-ELQ3FTL5B1
    • EINECS 219-906-4
    • MFCD00059732
    • DTXSID60862989
    • 2-phenyl-4-methyl-1,3-dioxolane
    • BENZALDEHYDE PROPYLENE GLYCOL ACETAL [FHFI]
    • BENZALDEHYDE PROPYLENE GLYCOL ACETAL [USP-RS]
    • BENZALDEHYDE PROPYLENE GLYCOL ACETAL (USP-RS)
    • Benzaldehyde propylene glycolacetal
    • SCHEMBL531471
    • FEMA 2130
    • DTXCID40811677
    • benzaldehyde propyleneglycol acetal
    • CHEBI:180409
    • 4-methyl-2-phenyl-[1,3]dioxolane
    • STL563187
    • 4-Methyl-2-phenyl-1,3-dioxolane #
    • AKOS015915489
    • Benzaldehydepropyleneglycolacetal; 98%
    • CS-W010835
    • HY-W010119
    • AS-61304
    • SY035743
    • B1094
    • NS00011998
    • D70175
    • A817972
    • Q27277235
    • Benzaldehyde propylene glycol acetal, United States Pharmacopeia (USP) Reference Standard
    • 219-906-4

  • Applications

    Benzaldehyde propylene glycol acetal, mixture of isomers, CAS 2568-25-4, is widely applied as a flavor and fragrance ingredient in the food and beverage industry for its warm almond-like aroma, while also acting as a fixative in perfumes, cosmetics and personal-care products to extend scent persistence and provide a smooth diffusion; in pharmaceuticals it serves as a palatability enhancer that masks unpleasant drug tastes, and in technical chemistry it functions as an intermediate solvent and denaturant in resins, coatings and household cleaners, offering solubilizing power and formulation stability; furthermore, this acetal is explored as a precursor for the synthesis of specialized aroma compounds and is used in insect lures owing to its characteristic scent, underscoring its versatility across modern manufacturing processes.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 425.57
    methanol 387.26
    isopropanol 267.2
    water 4.78
    ethyl acetate 228.53
    n-propanol 299.54
    acetone 253.36
    n-butanol 272.89
    acetonitrile 358.96
    DMF 282.74
    toluene 152.54
    isobutanol 219.27
    1,4-dioxane 502.79
    methyl acetate 235.78
    THF 450.81
    2-butanone 235.76
    n-pentanol 242.91
    sec-butanol 223.7
    n-hexane 29.18
    ethylene glycol 160.38
    NMP 230.16
    cyclohexane 55.72
    DMSO 408.91
    n-butyl acetate 216.33
    n-octanol 163.16
    chloroform 1459.91
    n-propyl acetate 197.19
    acetic acid 428.88
    dichloromethane 1276.91
    cyclohexanone 294.94
    propylene glycol 176.98
    isopropyl acetate 132.82
    DMAc 286.95
    2-ethoxyethanol 335.01
    isopentanol 228.37
    n-heptane 40.36
    ethyl formate 220.54
    1,2-dichloroethane 524.37
    n-hexanol 256.78
    2-methoxyethanol 380.91
    isobutyl acetate 142.6
    tetrachloromethane 146.87
    n-pentyl acetate 125.04
    transcutol 783.83
    n-heptanol 140.13
    ethylbenzene 111.79
    MIBK 129.92
    2-propoxyethanol 331.13
    tert-butanol 289.96
    MTBE 183.04
    2-butoxyethanol 218.64
    propionic acid 254.66
    o-xylene 112.91
    formic acid 135.64
    diethyl ether 223.19
    m-xylene 112.68
    p-xylene 144.99
    chlorobenzene 253.17
    dimethyl carbonate 107.31
    n-octane 21.08
    formamide 170.54
    cyclopentanone 296.49
    2-pentanone 183.17
    anisole 234.38
    cyclopentyl methyl ether 185.13
    gamma-butyrolactone 358.21
    1-methoxy-2-propanol 285.43
    pyridine 388.75
    3-pentanone 151.15
    furfural 402.35
    n-dodecane 24.83
    diethylene glycol 295.28
    diisopropyl ether 66.99
    tert-amyl alcohol 215.76
    acetylacetone 205.99
    n-hexadecane 27.03
    acetophenone 214.34
    methyl propionate 169.94
    isopentyl acetate 190.51
    trichloroethylene 923.42
    n-nonanol 139.43
    cyclohexanol 207.98
    benzyl alcohol 205.06
    2-ethylhexanol 155.39
    isooctanol 114.52
    dipropyl ether 167.46
    1,2-dichlorobenzene 238.12
    ethyl lactate 138.08
    propylene carbonate 290.06
    n-methylformamide 173.01
    2-pentanol 170.24
    n-pentane 30.26
    1-propoxy-2-propanol 233.37
    1-methoxy-2-propyl acetate 180.67
    2-(2-methoxypropoxy) propanol 228.68
    mesitylene 78.03
    ε-caprolactone 273.64
    p-cymene 85.63
    epichlorohydrin 473.56
    1,1,1-trichloroethane 407.51
    2-aminoethanol 239.99
    morpholine-4-carbaldehyde 315.18
    sulfolane 386.62
    2,2,4-trimethylpentane 24.81
    2-methyltetrahydrofuran 298.54
    n-hexyl acetate 200.32
    isooctane 20.68
    2-(2-butoxyethoxy)ethanol 293.43
    sec-butyl acetate 134.52
    tert-butyl acetate 139.19
    decalin 36.92
    glycerin 213.22
    diglyme 502.85
    acrylic acid 242.68
    isopropyl myristate 101.35
    n-butyric acid 312.55
    acetyl acetate 174.3
    di(2-ethylhexyl) phthalate 102.27
    ethyl propionate 161.72
    nitromethane 381.6
    1,2-diethoxyethane 233.87
    benzonitrile 267.35
    trioctyl phosphate 77.68
    1-bromopropane 317.72
    gamma-valerolactone 332.52
    n-decanol 111.96
    triethyl phosphate 101.13
    4-methyl-2-pentanol 109.78
    propionitrile 267.37
    vinylene carbonate 292.7
    1,1,2-trichlorotrifluoroethane 366.63
    DMS 149.56
    cumene 89.49
    2-octanol 96.12
    2-hexanone 188.71
    octyl acetate 127.77
    limonene 107.44
    1,2-dimethoxyethane 445.33
    ethyl orthosilicate 97.84
    tributyl phosphate 93.38
    diacetone alcohol 168.23
    N,N-dimethylaniline 166.67
    acrylonitrile 317.91
    aniline 198.34
    1,3-propanediol 260.64
    bromobenzene 278.84
    dibromomethane 819.71
    1,1,2,2-tetrachloroethane 696.62
    2-methyl-cyclohexyl acetate 150.12
    tetrabutyl urea 113.85
    diisobutyl methanol 92.92
    2-phenylethanol 185.38
    styrene 148.5
    dioctyl adipate 145.12
    dimethyl sulfate 146.56
    ethyl butyrate 186.83
    methyl lactate 128.81
    butyl lactate 120.13
    diethyl carbonate 150.92
    propanediol butyl ether 227.25
    triethyl orthoformate 135.27
    p-tert-butyltoluene 77.94
    methyl 4-tert-butylbenzoate 181.86
    morpholine 413.37
    tert-butylamine 204.34
    n-dodecanol 94.4
    dimethoxymethane 233.96
    ethylene carbonate 237.33
    cyrene 195.82
    2-ethoxyethyl acetate 159.75
    2-ethylhexyl acetate 146.62
    1,2,4-trichlorobenzene 271.27
    4-methylpyridine 310.74
    dibutyl ether 156.29
    2,6-dimethyl-4-heptanol 92.92
    DEF 213.47
    dimethyl isosorbide 271.09
    tetrachloroethylene 462.58
    eugenol 191.62
    triacetin 206.52
    span 80 187.61
    1,4-butanediol 174.78
    1,1-dichloroethane 517.8
    2-methyl-1-pentanol 207.78
    methyl formate 157.96
    2-methyl-1-butanol 207.08
    n-decane 35.94
    butyronitrile 301.69
    3,7-dimethyl-1-octanol 144.4
    1-chlorooctane 117.78
    1-chlorotetradecane 57.45
    n-nonane 34.13
    undecane 28.9
    tert-butylcyclohexane 35.53
    cyclooctane 23.74
    cyclopentanol 200.98
    tetrahydropyran 352.7
    tert-amyl methyl ether 138.93
    2,5,8-trioxanonane 362.88
    1-hexene 124.33
    2-isopropoxyethanol 242.55
    2,2,2-trifluoroethanol 156.4
    methyl butyrate 229.62

    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