Malealdehyde

Overview IFRA Request a quote

  • Identifiers

    CAS number
    3675-13-6

    Molecular formula
    C4H4O2

    SMILES
    C(=C\C=O)\C=O

    Safety labels

  • Odor profile

    Fragrance
    Pungent 70.81%
    Spicy 63.57%
    Sharp 51.8%
    Fruity 42.31%
    Green 40.89%
    Herbal 40.8%
    Caramellic 39.61%
    Nutty 37.15%
    Burnt 35.81%
    Almond 35.33%

     

    Flavor
    Almond 33.36%
    Pungent 30.8%
    Cherry 30.18%
    Odorless 29.92%
    Sweet 26.85%
    Formyl 23.37%
    Mustard 22.12%
    Cinnamon 21.49%
    Red hots 21.27%
    Fragrant 20.1%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    -0.6

    pKa est.
    6.7 (neutral)

    Molecular weight
    84.07 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    168°C

    Flash point

    • 59.94 ˚C est.

  • Synonyms

    • Malealdehyde
    • (Z)-2-Butenedial
    • (2Z)-but-2-enedial
    • 1,4-dioxo-2-butene
    • Maleylaldehyde
    • CHEBI:38126
    • Maleic acid aldehyde
    • 2-Butene-1,4-dial
    • 2-Butenedial
    • RefChem:925220
    • 3675-13-6
    • (Z)-but-2-enedial
    • 2-Butenedial, (Z)-
    • cis-2-butene-1,4-dial
    • NSC 250971
    • cis-butenedial
    • CCRIS 8401
    • SCHEMBL453625
    • SCHEMBL831105
    • DTXSID40878720
    • NS00116329
    • Q27117385
    • 3675-13-6

  • Applications

    Malealdehyde (CAS number: 3675-13-6) is commonly used as a synthetic intermediate in organic synthesis, serving as a building block for specialty chemicals used in polymers, coatings, adhesives, and pharmaceutical-related intermediates. It can act as a precursor for resins and crosslinking systems in industrial coatings and plastics. In perfumery and cosmetics, it may be used as a fragrance ingredient or fragrance precursor, contributing to aroma profiles. It is sometimes evaluated as a reactive aldehyde in polymer chemistry for the production of specialty polymers or as a processing aid in manufacturing workflows. In certain formulations, it may function as a solvent or co-solvent, subject to formulation limits and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 48.31
    methanol 101.68
    isopropanol 29.32
    water 7.77
    ethyl acetate 75.8
    n-propanol 32.79
    acetone 146.75
    n-butanol 27.1
    acetonitrile 227.42
    DMF 290.45
    toluene 17.09
    isobutanol 21.86
    1,4-dioxane 106.49
    methyl acetate 137.62
    THF 114.86
    2-butanone 95.08
    n-pentanol 22.82
    sec-butanol 25.28
    n-hexane 7.42
    ethylene glycol 30.05
    NMP 278.1
    cyclohexane 8.72
    DMSO 305.97
    n-butyl acetate 53.73
    n-octanol 22.65
    chloroform 169.79
    n-propyl acetate 59.26
    acetic acid 189.57
    dichloromethane 224.9
    cyclohexanone 99.93
    propylene glycol 16.99
    isopropyl acetate 35.09
    DMAc 265.4
    2-ethoxyethanol 66.47
    isopentanol 25.81
    n-heptane 8.07
    ethyl formate 71.75
    1,2-dichloroethane 128.49
    n-hexanol 20.43
    2-methoxyethanol 107.5
    isobutyl acetate 28.28
    tetrachloromethane 26.24
    n-pentyl acetate 33.84
    transcutol 274.63
    n-heptanol 14.76
    ethylbenzene 18.51
    MIBK 29.03
    2-propoxyethanol 50.29
    tert-butanol 38.96
    MTBE 32.99
    2-butoxyethanol 35.96
    propionic acid 91.31
    o-xylene 20.93
    formic acid 96.1
    diethyl ether 42.17
    m-xylene 13.51
    p-xylene 27.83
    chlorobenzene 50.77
    dimethyl carbonate 46.06
    n-octane 4.08
    formamide 193.65
    cyclopentanone 143.27
    2-pentanone 53.47
    anisole 58.92
    cyclopentyl methyl ether 44.96
    gamma-butyrolactone 203.45
    1-methoxy-2-propanol 59.7
    pyridine 135.95
    3-pentanone 54.76
    furfural 210.22
    n-dodecane 3.92
    diethylene glycol 57.35
    diisopropyl ether 11.86
    tert-amyl alcohol 31.93
    acetylacetone 85.92
    n-hexadecane 4.28
    acetophenone 74.22
    methyl propionate 69.13
    isopentyl acetate 40.62
    trichloroethylene 240.85
    n-nonanol 19.89
    cyclohexanol 26.97
    benzyl alcohol 40.67
    2-ethylhexanol 20.07
    isooctanol 13.37
    dipropyl ether 31.21
    1,2-dichlorobenzene 58.39
    ethyl lactate 33.01
    propylene carbonate 94.16
    n-methylformamide 163.17
    2-pentanol 18.71
    n-pentane 5.59
    1-propoxy-2-propanol 38.14
    1-methoxy-2-propyl acetate 45.48
    2-(2-methoxypropoxy) propanol 64.85
    mesitylene 10.84
    ε-caprolactone 95.59
    p-cymene 17.02
    epichlorohydrin 156.83
    1,1,1-trichloroethane 81.24
    2-aminoethanol 39.48
    morpholine-4-carbaldehyde 212.31
    sulfolane 221.16
    2,2,4-trimethylpentane 4.01
    2-methyltetrahydrofuran 77.78
    n-hexyl acetate 49.97
    isooctane 2.43
    2-(2-butoxyethoxy)ethanol 72.17
    sec-butyl acetate 31.5
    tert-butyl acetate 34.31
    decalin 7.25
    glycerin 36.87
    diglyme 171.17
    acrylic acid 116.57
    isopropyl myristate 23.53
    n-butyric acid 70.15
    acetyl acetate 66.94
    di(2-ethylhexyl) phthalate 23.29
    ethyl propionate 50.66
    nitromethane 415.3
    1,2-diethoxyethane 76.76
    benzonitrile 79.54
    trioctyl phosphate 16.27
    1-bromopropane 49.72
    gamma-valerolactone 158.39
    n-decanol 15.52
    triethyl phosphate 31.68
    4-methyl-2-pentanol 12.72
    propionitrile 100.91
    vinylene carbonate 104.08
    1,1,2-trichlorotrifluoroethane 141.51
    DMS 66.09
    cumene 15.27
    2-octanol 12.36
    2-hexanone 54.89
    octyl acetate 29.42
    limonene 23.01
    1,2-dimethoxyethane 137.37
    ethyl orthosilicate 26.54
    tributyl phosphate 23.81
    diacetone alcohol 46.89
    N,N-dimethylaniline 45.34
    acrylonitrile 165.67
    aniline 35.31
    1,3-propanediol 45.39
    bromobenzene 45.36
    dibromomethane 122.39
    1,1,2,2-tetrachloroethane 148.35
    2-methyl-cyclohexyl acetate 38.73
    tetrabutyl urea 37.8
    diisobutyl methanol 15.27
    2-phenylethanol 32.24
    styrene 29.3
    dioctyl adipate 42.34
    dimethyl sulfate 93.81
    ethyl butyrate 50.11
    methyl lactate 45.22
    butyl lactate 32.34
    diethyl carbonate 41.76
    propanediol butyl ether 39.45
    triethyl orthoformate 35.49
    p-tert-butyltoluene 13.97
    methyl 4-tert-butylbenzoate 51.47
    morpholine 111.76
    tert-butylamine 26.32
    n-dodecanol 12.78
    dimethoxymethane 79.32
    ethylene carbonate 73.62
    cyrene 64.49
    2-ethoxyethyl acetate 54.48
    2-ethylhexyl acetate 34.41
    1,2,4-trichlorobenzene 69.59
    4-methylpyridine 98.32
    dibutyl ether 36.07
    2,6-dimethyl-4-heptanol 15.27
    DEF 111.84
    dimethyl isosorbide 100.67
    tetrachloroethylene 113.03
    eugenol 56.06
    triacetin 78.19
    span 80 45.31
    1,4-butanediol 21.38
    1,1-dichloroethane 92.45
    2-methyl-1-pentanol 23.52
    methyl formate 123.75
    2-methyl-1-butanol 23.73
    n-decane 5.94
    butyronitrile 65.67
    3,7-dimethyl-1-octanol 23.27
    1-chlorooctane 18.24
    1-chlorotetradecane 8.92
    n-nonane 5.88
    undecane 4.67
    tert-butylcyclohexane 5.69
    cyclooctane 3.65
    cyclopentanol 35.9
    tetrahydropyran 58.51
    tert-amyl methyl ether 30.0
    2,5,8-trioxanonane 127.38
    1-hexene 19.66
    2-isopropoxyethanol 41.25
    2,2,2-trifluoroethanol 99.98
    methyl butyrate 74.57

    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