3',4',7,8-Tetramethoxyflavone

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  • Identifiers

    CAS number
    65548-55-2

    Molecular formula
    C19H18O6

    SMILES
    COC1=C(C=C(C=C1)C2=CC(=O)C3=C(O2)C(=C(C=C3)OC)OC)OC

    Safety labels

  • Odor profile

    Fragrance
    Sweet 60.13%
    Vanilla 60.07%
    Phenolic 53.55%
    Spicy 51.08%
    Powdery 44.55%
    Floral 41.32%
    Woody 40.33%
    Smoky 40.29%
    Balsamic 39.72%
    Creamy 34.19%

     

    Flavor
    Bitter 87.34%
    Parsley 21.8%
    Eugenol 21.06%
    Bland 19.63%
    Cedarleaf 19.25%
    Lovage 19.08%
    Sweet-like 18.84%
    Ripe apricot 18.8%
    Ham 18.59%
    Aniseed 18.55%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    3.1

    pKa est.
    6.8 (neutral)

    Molecular weight
    342.3 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    613°C

    Flash point

    • 190.73 ˚C est.

  • Synonyms

    • 65548-55-2
    • 3',4',7,8-Tetramethoxyflavone
    • DTXSID70398663
    • RefChem:1065384
    • DTXCID00349522
    • 2-(3,4-dimethoxyphenyl)-7,8-dimethoxy-4H-chromen-4-one
    • 2-(3,4-dimethoxyphenyl)-7,8-dimethoxychromen-4-one
    • 7,8,3',4'-tetramethoxyflavone
    • 3,4,7,8-TETRAMETHOXYFLAVONE
    • MFCD00143001
    • CHEMBL321555
    • 7,8,3 inverted exclamation marka,4 inverted exclamation marka-Tetramethoxyflavone
    • 4H-1-Benzopyran-4-one, 2-(3,4-dimethoxyphenyl)-7,8-dimethoxy-
    • SCHEMBL988001
    • orb1683668
    • 2-(3,4-Dimethoxy-phenyl)-7,8-dimethoxy-chromen-4-one
    • SCHEMBL29612043
    • ZRLWYUNKZNRQLO-UHFFFAOYSA-N
    • 2-(3,4-Dimethoxyphenyl)-7,8-dimethoxy-4H-1-benzopyran-4-one
    • HY-N8730
    • BDBM50032155
    • MSK158762
    • AKOS024287230
    • FT66134
    • AS-59240
    • DA-49495
    • ST099002
    • 3',4',7,8-tetramethoxyflavone, AldrichCPR
    • CS-0148982
    • A1-03162
    • 2-(3,4-dimethoxyphenyl)-7,8-dimethoxy-chromen-4-one
    • 7,8-dimethoxy-2-(3,4-dimethoxyphenyl)-4h-chromen-4-one
    • 3',4',7,8-Tetramethoxyflavone2-(3,4-dimethoxyphenyl)-7,8-dimethoxychromen-4-one; 7,8,3 inverted exclamation marka,4 inverted exclamation marka-Tetramethoxyflavone
    • 65548-55-2

  • Applications

    3',4',7,8-Tetramethoxyflavone (CAS 65548-55-2) is used as an intermediate and scaffold for the synthesis of flavonoid derivatives in pharmaceutical and agrochemical research, serving as a building block for library development and for more complex compounds. In cosmetics and personal care, it has been evaluated as a potential antioxidant and UV-absorbing component in formulations. In coatings and inks, it can act as a chromophore precursor for specialty dyes and functional pigments; in polymers and plastics, it is explored as a functional aromatic building block for flavonoid-containing polymers and composites.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 0.39
    methanol 0.32
    isopropanol 0.5
    water 0.0
    ethyl acetate 5.23
    n-propanol 0.68
    acetone 3.39
    n-butanol 0.61
    acetonitrile 3.35
    DMF 9.44
    toluene 1.23
    isobutanol 0.69
    1,4-dioxane 6.8
    methyl acetate 6.03
    THF 13.83
    2-butanone 4.27
    n-pentanol 0.86
    sec-butanol 0.84
    n-hexane 0.28
    ethylene glycol 0.43
    NMP 16.43
    cyclohexane 0.48
    DMSO 12.73
    n-butyl acetate 4.26
    n-octanol 0.88
    chloroform 19.76
    n-propyl acetate 4.43
    acetic acid 4.72
    dichloromethane 28.59
    cyclohexanone 8.67
    propylene glycol 0.2
    isopropyl acetate 3.82
    DMAc 19.54
    2-ethoxyethanol 3.55
    isopentanol 0.91
    n-heptane 0.47
    ethyl formate 2.44
    1,2-dichloroethane 16.09
    n-hexanol 1.02
    2-methoxyethanol 3.18
    isobutyl acetate 2.82
    tetrachloromethane 2.45
    n-pentyl acetate 3.81
    transcutol 10.11
    n-heptanol 1.06
    ethylbenzene 1.31
    MIBK 2.8
    2-propoxyethanol 4.72
    tert-butanol 1.1
    MTBE 2.18
    2-butoxyethanol 3.45
    propionic acid 3.02
    o-xylene 1.69
    formic acid 1.87
    diethyl ether 2.87
    m-xylene 1.06
    p-xylene 1.98
    chlorobenzene 2.79
    dimethyl carbonate 6.34
    n-octane 0.26
    formamide 4.52
    cyclopentanone 12.18
    2-pentanone 3.17
    anisole 2.8
    cyclopentyl methyl ether 5.2
    gamma-butyrolactone 19.26
    1-methoxy-2-propanol 2.31
    pyridine 7.4
    3-pentanone 5.15
    furfural 16.03
    n-dodecane 0.21
    diethylene glycol 4.11
    diisopropyl ether 1.31
    tert-amyl alcohol 1.49
    acetylacetone 7.34
    n-hexadecane 0.25
    acetophenone 5.2
    methyl propionate 5.95
    isopentyl acetate 4.62
    trichloroethylene 32.38
    n-nonanol 1.15
    cyclohexanol 1.62
    benzyl alcohol 2.18
    2-ethylhexanol 1.48
    isooctanol 1.2
    dipropyl ether 3.28
    1,2-dichlorobenzene 4.96
    ethyl lactate 2.68
    propylene carbonate 7.19
    n-methylformamide 3.28
    2-pentanol 0.71
    n-pentane 0.19
    1-propoxy-2-propanol 3.58
    1-methoxy-2-propyl acetate 6.91
    2-(2-methoxypropoxy) propanol 5.93
    mesitylene 0.93
    ε-caprolactone 9.18
    p-cymene 1.83
    epichlorohydrin 24.18
    1,1,1-trichloroethane 9.07
    2-aminoethanol 0.55
    morpholine-4-carbaldehyde 15.7
    sulfolane 27.07
    2,2,4-trimethylpentane 0.25
    2-methyltetrahydrofuran 7.22
    n-hexyl acetate 3.46
    isooctane 0.12
    2-(2-butoxyethoxy)ethanol 5.23
    sec-butyl acetate 3.49
    tert-butyl acetate 5.01
    decalin 0.48
    glycerin 1.08
    diglyme 15.95
    acrylic acid 4.48
    isopropyl myristate 1.96
    n-butyric acid 2.71
    acetyl acetate 5.62
    di(2-ethylhexyl) phthalate 2.47
    ethyl propionate 5.4
    nitromethane 16.88
    1,2-diethoxyethane 5.81
    benzonitrile 3.29
    trioctyl phosphate 1.49
    1-bromopropane 4.09
    gamma-valerolactone 15.48
    n-decanol 0.93
    triethyl phosphate 5.24
    4-methyl-2-pentanol 0.71
    propionitrile 2.89
    vinylene carbonate 7.67
    1,1,2-trichlorotrifluoroethane 17.76
    DMS 7.8
    cumene 1.27
    2-octanol 0.87
    2-hexanone 3.42
    octyl acetate 2.26
    limonene 2.18
    1,2-dimethoxyethane 10.39
    ethyl orthosilicate 4.93
    tributyl phosphate 2.25
    diacetone alcohol 4.48
    N,N-dimethylaniline 3.24
    acrylonitrile 4.88
    aniline 1.94
    1,3-propanediol 0.94
    bromobenzene 3.05
    dibromomethane 11.71
    1,1,2,2-tetrachloroethane 20.25
    2-methyl-cyclohexyl acetate 5.41
    tetrabutyl urea 3.38
    diisobutyl methanol 1.42
    2-phenylethanol 2.93
    styrene 1.27
    dioctyl adipate 3.91
    dimethyl sulfate 15.61
    ethyl butyrate 5.13
    methyl lactate 2.97
    butyl lactate 2.72
    diethyl carbonate 4.71
    propanediol butyl ether 1.74
    triethyl orthoformate 5.53
    p-tert-butyltoluene 1.62
    methyl 4-tert-butylbenzoate 6.9
    morpholine 7.03
    tert-butylamine 0.75
    n-dodecanol 0.77
    dimethoxymethane 7.41
    ethylene carbonate 6.11
    cyrene 7.73
    2-ethoxyethyl acetate 7.25
    2-ethylhexyl acetate 4.09
    1,2,4-trichlorobenzene 6.76
    4-methylpyridine 4.46
    dibutyl ether 2.46
    2,6-dimethyl-4-heptanol 1.42
    DEF 7.45
    dimethyl isosorbide 15.69
    tetrachloroethylene 15.34
    eugenol 5.97
    triacetin 7.17
    span 80 3.49
    1,4-butanediol 0.59
    1,1-dichloroethane 6.1
    2-methyl-1-pentanol 1.37
    methyl formate 3.49
    2-methyl-1-butanol 0.96
    n-decane 0.35
    butyronitrile 1.84
    3,7-dimethyl-1-octanol 1.18
    1-chlorooctane 1.22
    1-chlorotetradecane 0.6
    n-nonane 0.28
    undecane 0.26
    tert-butylcyclohexane 0.34
    cyclooctane 0.23
    cyclopentanol 1.95
    tetrahydropyran 4.34
    tert-amyl methyl ether 2.69
    2,5,8-trioxanonane 11.89
    1-hexene 0.78
    2-isopropoxyethanol 3.39
    2,2,2-trifluoroethanol 5.33
    methyl butyrate 5.43

    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