5-Methylfuran-2-propionaldehyde

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  • Identifiers

    CAS number
    34756-16-6

    Molecular formula
    C8H10O2

    SMILES
    CC1=CC=C(O1)CCC=O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Green 74.58%
    Fruity 65.79%
    Fatty 48.21%
    Sweet 42.92%
    Nutty 40.98%
    Caramellic 40.03%
    Floral 39.97%
    Vegetable 38.37%
    Fresh 35.15%
    Spicy 32.32%

     

    Flavor
    Sweet 39.62%
    Caramel 36.39%
    Fatty 35.54%
    Coffee 34.81%
    Almond 33.85%
    Spicy 33.49%
    Musty 31.44%
    Woody 30.2%
    Oily 29.55%
    Roasted 29.42%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.1

    pKa est.
    6.06 (neutral)

    Molecular weight
    138.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    227°C

    Flash point

    • 76.74 ˚C est.

  • Synonyms

    • 5-Methylfuran-2-propionaldehyde
    • EINECS 252-190-1
    • DTXSID70188309
    • NSC 239322
    • RefChem:537254
    • DTXCID50110800
    • 252-190-1
    • 34756-16-6
    • 3-(5-methylfuran-2-yl)propanal
    • 3-(5-Methyl-2-furyl)propionaldehyde
    • 2-furanpropanal, 5-methyl-
    • 3-(5-methyl-2-furyl)propanal
    • 3-(5-Methyl-furan-2-yl)-propionaldehyde
    • MFCD01910105
    • NSC-239322
    • Methylfuran-2-propionaldehyde
    • NSC239322
    • S53DVM2W5X
    • SCHEMBL4155788
    • WPBUABKBDHGOAJ-UHFFFAOYSA-N
    • SBB017913
    • AKOS000300966
    • SB61021
    • AC-22554
    • AS-60224
    • SY051163
    • DB-011096
    • M2498
    • NS00029727
    • ST50304425
    • D82231
    • EN300-1845729
    • 756M166
    • F235404
    • 34756-16-6

  • Applications

    5-Methylfuran-2-propionaldehyde, CAS 34756-16-6, is primarily used as a chemical intermediate and building block in the synthesis of fragrance and flavor compounds for the perfumery and flavor industries; it may serve as an aroma chemical in cosmetic/fine fragrance formulations and as a precursor to more complex aroma materials. In polymers and plastics, it can act as a building block for furan-based polymers and specialty resins. In pharmaceutical synthesis, it is used as an intermediate for constructing heterocyclic and furan-containing frameworks. It may also be evaluated for coatings/inks applications as a reactive aldehyde component in monomer synthesis or resin formulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 427.44
    methanol 729.32
    isopropanol 255.9
    water 12.19
    ethyl acetate 325.12
    n-propanol 270.67
    acetone 791.49
    n-butanol 241.95
    acetonitrile 636.6
    DMF 1119.92
    toluene 170.57
    isobutanol 212.68
    1,4-dioxane 607.43
    methyl acetate 560.16
    THF 682.15
    2-butanone 573.57
    n-pentanol 194.77
    sec-butanol 234.65
    n-hexane 33.64
    ethylene glycol 198.16
    NMP 1172.77
    cyclohexane 29.54
    DMSO 1838.17
    n-butyl acetate 220.27
    n-octanol 103.22
    chloroform 1008.76
    n-propyl acetate 224.28
    acetic acid 475.61
    dichloromethane 1320.71
    cyclohexanone 550.8
    propylene glycol 183.41
    isopropyl acetate 176.62
    DMAc 1241.74
    2-ethoxyethanol 407.43
    isopentanol 226.45
    n-heptane 17.26
    ethyl formate 284.07
    1,2-dichloroethane 692.23
    n-hexanol 146.08
    2-methoxyethanol 650.64
    isobutyl acetate 139.43
    tetrachloromethane 157.59
    n-pentyl acetate 138.72
    transcutol 1484.58
    n-heptanol 67.05
    ethylbenzene 121.18
    MIBK 192.22
    2-propoxyethanol 301.21
    tert-butanol 293.99
    MTBE 293.1
    2-butoxyethanol 155.78
    propionic acid 384.07
    o-xylene 134.72
    formic acid 346.63
    diethyl ether 243.93
    m-xylene 115.7
    p-xylene 163.33
    chlorobenzene 350.06
    dimethyl carbonate 208.6
    n-octane 7.68
    formamide 564.45
    cyclopentanone 763.57
    2-pentanone 322.66
    anisole 366.37
    cyclopentyl methyl ether 286.26
    gamma-butyrolactone 885.44
    1-methoxy-2-propanol 374.87
    pyridine 575.39
    3-pentanone 287.72
    furfural 937.8
    n-dodecane 8.16
    diethylene glycol 312.99
    diisopropyl ether 73.62
    tert-amyl alcohol 295.41
    acetylacetone 455.55
    n-hexadecane 9.29
    acetophenone 356.75
    methyl propionate 325.18
    isopentyl acetate 199.42
    trichloroethylene 1285.77
    n-nonanol 83.86
    cyclohexanol 197.28
    benzyl alcohol 257.39
    2-ethylhexanol 102.35
    isooctanol 61.4
    dipropyl ether 111.22
    1,2-dichlorobenzene 355.02
    ethyl lactate 140.44
    propylene carbonate 440.0
    n-methylformamide 621.48
    2-pentanol 146.03
    n-pentane 21.99
    1-propoxy-2-propanol 193.76
    1-methoxy-2-propyl acetate 237.54
    2-(2-methoxypropoxy) propanol 264.84
    mesitylene 75.18
    ε-caprolactone 474.97
    p-cymene 69.55
    epichlorohydrin 949.01
    1,1,1-trichloroethane 546.55
    2-aminoethanol 280.24
    morpholine-4-carbaldehyde 925.02
    sulfolane 1263.98
    2,2,4-trimethylpentane 22.04
    2-methyltetrahydrofuran 526.01
    n-hexyl acetate 236.42
    isooctane 12.96
    2-(2-butoxyethoxy)ethanol 334.4
    sec-butyl acetate 156.97
    tert-butyl acetate 208.75
    decalin 33.71
    glycerin 282.63
    diglyme 658.85
    acrylic acid 419.71
    isopropyl myristate 86.84
    n-butyric acid 324.38
    acetyl acetate 248.03
    di(2-ethylhexyl) phthalate 107.09
    ethyl propionate 205.38
    nitromethane 1117.97
    1,2-diethoxyethane 305.24
    benzonitrile 375.26
    trioctyl phosphate 64.78
    1-bromopropane 304.11
    gamma-valerolactone 862.54
    n-decanol 60.54
    triethyl phosphate 116.59
    4-methyl-2-pentanol 90.4
    propionitrile 349.25
    vinylene carbonate 446.42
    1,1,2-trichlorotrifluoroethane 600.7
    DMS 313.92
    cumene 92.55
    2-octanol 55.86
    2-hexanone 273.13
    octyl acetate 112.01
    limonene 97.37
    1,2-dimethoxyethane 687.7
    ethyl orthosilicate 104.64
    tributyl phosphate 104.96
    diacetone alcohol 266.27
    N,N-dimethylaniline 251.97
    acrylonitrile 532.53
    aniline 280.61
    1,3-propanediol 301.37
    bromobenzene 373.57
    dibromomethane 701.87
    1,1,2,2-tetrachloroethane 874.86
    2-methyl-cyclohexyl acetate 158.97
    tetrabutyl urea 140.18
    diisobutyl methanol 63.24
    2-phenylethanol 180.8
    styrene 178.19
    dioctyl adipate 149.62
    dimethyl sulfate 454.72
    ethyl butyrate 173.91
    methyl lactate 199.42
    butyl lactate 137.43
    diethyl carbonate 152.38
    propanediol butyl ether 227.79
    triethyl orthoformate 121.93
    p-tert-butyltoluene 65.34
    methyl 4-tert-butylbenzoate 219.3
    morpholine 628.46
    tert-butylamine 185.59
    n-dodecanol 45.37
    dimethoxymethane 412.2
    ethylene carbonate 318.98
    cyrene 282.12
    2-ethoxyethyl acetate 250.47
    2-ethylhexyl acetate 164.24
    1,2,4-trichlorobenzene 441.34
    4-methylpyridine 551.91
    dibutyl ether 127.79
    2,6-dimethyl-4-heptanol 63.24
    DEF 468.67
    dimethyl isosorbide 412.06
    tetrachloroethylene 542.01
    eugenol 224.71
    triacetin 314.01
    span 80 189.68
    1,4-butanediol 166.4
    1,1-dichloroethane 595.64
    2-methyl-1-pentanol 206.45
    methyl formate 480.14
    2-methyl-1-butanol 235.84
    n-decane 13.43
    butyronitrile 300.42
    3,7-dimethyl-1-octanol 113.99
    1-chlorooctane 69.75
    1-chlorotetradecane 28.8
    n-nonane 12.85
    undecane 10.03
    tert-butylcyclohexane 32.95
    cyclooctane 11.61
    cyclopentanol 237.54
    tetrahydropyran 379.02
    tert-amyl methyl ether 229.1
    2,5,8-trioxanonane 449.5
    1-hexene 115.61
    2-isopropoxyethanol 256.65
    2,2,2-trifluoroethanol 230.15
    methyl butyrate 300.04

    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