7-Hydroxy-3,3',4',5,6,8-hexamethoxyflavone

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  • Identifiers

    CAS number
    185678-89-1

    Molecular formula
    C21H22O9

    SMILES
    COC1=C(C=C(C=C1)C2=C(C(=O)C3=C(O2)C(=C(C(=C3OC)OC)O)OC)OC)OC

    Safety labels

  • Odor profile

    Fragrance
    Phenolic 53.89%
    Spicy 52.8%
    Vanilla 46.64%
    Woody 42.42%
    Smoky 41.4%
    Burnt 38.77%
    Balsamic 38.39%
    Fruity 36.79%
    Floral 32.92%
    Powdery 32.72%

     

    Flavor
    Bitter 73.44%
    Bland 25.84%
    Parsley 23.27%
    Eugenol 23.2%
    Spice 20.94%
    Sweet-like 20.24%
    Cedarleaf 19.98%
    Carrot 19.67%
    Ham 19.63%
    Allspice 19.54%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.9

    pKa est.
    7.49 (neutral)

    Molecular weight
    418.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    984°C

    Flash point

    • 205.5 ˚C est.

  • Synonyms

    • 7-Hydroxy-3,3',4',5,6,8-hexamethoxyflavone
    • 7-Hydroxy-3,5,6,8,3',4'-hexamethoxyflavone
    • 2-(3,4-Dimethoxyphenyl)-7-hydroxy-3,5,6,8-tetramethoxy-4H-1-benzopyran-4-one
    • 2-(3,4-dimethoxyphenyl)-7-hydroxy-3,5,6,8-tetramethoxychromen-4-one
    • RefChem:106137
    • SCHEMBL1764666
    • CHEBI:191566
    • DTXSID401141986
    • LMPK12113354
    • 185678-89-1
    • 185678-89-1

  • Applications

    7-Hydroxy-3,3',4',5,6,8-hexamethoxyflavone is primarily used as an intermediate in the synthesis of flavonoid derivatives for pharmaceuticals and specialty chemicals. It is commonly evaluated for cosmetic and personal care applications as a flavonoid-derived antioxidant and has potential as a UV-stabilizer or colorant precursor in formulations. In coatings and inks, it can serve as a color precursor or processing additive. In polymer and plastics formulations, it is studied as an antioxidant or thermal-stability additive to improve material durability. It is also explored in agricultural research contexts as a scaffold for flavonoid-derived candidates with potential agricultural applications.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 0.24
    methanol 0.25
    isopropanol 0.22
    water 0.0
    ethyl acetate 2.77
    n-propanol 0.37
    acetone 1.18
    n-butanol 0.31
    acetonitrile 1.07
    DMF 6.06
    toluene 0.29
    isobutanol 0.32
    1,4-dioxane 1.74
    methyl acetate 3.02
    THF 3.91
    2-butanone 2.02
    n-pentanol 0.31
    sec-butanol 0.37
    n-hexane 0.06
    ethylene glycol 0.32
    NMP 22.94
    cyclohexane 0.1
    DMSO 5.67
    n-butyl acetate 1.91
    n-octanol 0.32
    chloroform 7.27
    n-propyl acetate 1.48
    acetic acid 3.47
    dichloromethane 9.45
    cyclohexanone 3.95
    propylene glycol 0.2
    isopropyl acetate 1.49
    DMAc 12.1
    2-ethoxyethanol 1.42
    isopentanol 0.36
    n-heptane 0.1
    ethyl formate 1.51
    1,2-dichloroethane 4.93
    n-hexanol 0.4
    2-methoxyethanol 1.87
    isobutyl acetate 0.76
    tetrachloromethane 1.11
    n-pentyl acetate 1.48
    transcutol 3.34
    n-heptanol 0.41
    ethylbenzene 0.28
    MIBK 0.9
    2-propoxyethanol 2.37
    tert-butanol 0.41
    MTBE 0.57
    2-butoxyethanol 1.62
    propionic acid 2.2
    o-xylene 0.44
    formic acid 1.98
    diethyl ether 0.68
    m-xylene 0.27
    p-xylene 0.38
    chlorobenzene 0.91
    dimethyl carbonate 4.38
    n-octane 0.05
    formamide 3.8
    cyclopentanone 6.46
    2-pentanone 1.37
    anisole 0.67
    cyclopentyl methyl ether 1.61
    gamma-butyrolactone 13.02
    1-methoxy-2-propanol 1.43
    pyridine 2.84
    3-pentanone 2.14
    furfural 10.5
    n-dodecane 0.04
    diethylene glycol 2.21
    diisopropyl ether 0.26
    tert-amyl alcohol 0.59
    acetylacetone 3.25
    n-hexadecane 0.04
    acetophenone 1.84
    methyl propionate 3.9
    isopentyl acetate 1.77
    trichloroethylene 13.8
    n-nonanol 0.38
    cyclohexanol 0.66
    benzyl alcohol 0.76
    2-ethylhexanol 0.52
    isooctanol 0.41
    dipropyl ether 0.8
    1,2-dichlorobenzene 1.8
    ethyl lactate 1.35
    propylene carbonate 5.42
    n-methylformamide 2.86
    2-pentanol 0.3
    n-pentane 0.05
    1-propoxy-2-propanol 1.69
    1-methoxy-2-propyl acetate 3.64
    2-(2-methoxypropoxy) propanol 2.37
    mesitylene 0.2
    ε-caprolactone 5.12
    p-cymene 0.53
    epichlorohydrin 10.17
    1,1,1-trichloroethane 3.32
    2-aminoethanol 0.42
    morpholine-4-carbaldehyde 10.85
    sulfolane 22.15
    2,2,4-trimethylpentane 0.07
    2-methyltetrahydrofuran 2.37
    n-hexyl acetate 1.41
    isooctane 0.03
    2-(2-butoxyethoxy)ethanol 1.9
    sec-butyl acetate 1.02
    tert-butyl acetate 1.74
    decalin 0.1
    glycerin 0.98
    diglyme 5.98
    acrylic acid 3.68
    isopropyl myristate 0.58
    n-butyric acid 1.87
    acetyl acetate 3.11
    di(2-ethylhexyl) phthalate 0.95
    ethyl propionate 2.02
    nitromethane 11.24
    1,2-diethoxyethane 1.35
    benzonitrile 1.09
    trioctyl phosphate 0.67
    1-bromopropane 1.24
    gamma-valerolactone 9.91
    n-decanol 0.28
    triethyl phosphate 2.25
    4-methyl-2-pentanol 0.24
    propionitrile 1.03
    vinylene carbonate 5.44
    1,1,2-trichlorotrifluoroethane 14.48
    DMS 4.3
    cumene 0.27
    2-octanol 0.29
    2-hexanone 1.06
    octyl acetate 0.77
    limonene 0.72
    1,2-dimethoxyethane 2.94
    ethyl orthosilicate 1.81
    tributyl phosphate 0.93
    diacetone alcohol 2.07
    N,N-dimethylaniline 0.94
    acrylonitrile 2.26
    aniline 0.77
    1,3-propanediol 0.61
    bromobenzene 0.89
    dibromomethane 3.69
    1,1,2,2-tetrachloroethane 9.74
    2-methyl-cyclohexyl acetate 2.0
    tetrabutyl urea 1.49
    diisobutyl methanol 0.4
    2-phenylethanol 1.12
    styrene 0.26
    dioctyl adipate 1.32
    dimethyl sulfate 13.29
    ethyl butyrate 1.85
    methyl lactate 2.68
    butyl lactate 1.48
    diethyl carbonate 1.86
    propanediol butyl ether 0.87
    triethyl orthoformate 1.91
    p-tert-butyltoluene 0.49
    methyl 4-tert-butylbenzoate 3.06
    morpholine 2.4
    tert-butylamine 0.24
    n-dodecanol 0.21
    dimethoxymethane 3.14
    ethylene carbonate 3.66
    cyrene 4.38
    2-ethoxyethyl acetate 2.91
    2-ethylhexyl acetate 1.67
    1,2,4-trichlorobenzene 2.77
    4-methylpyridine 1.82
    dibutyl ether 0.49
    2,6-dimethyl-4-heptanol 0.4
    DEF 4.2
    dimethyl isosorbide 7.15
    tetrachloroethylene 6.96
    eugenol 2.44
    triacetin 3.28
    span 80 1.5
    1,4-butanediol 0.29
    1,1-dichloroethane 1.96
    2-methyl-1-pentanol 0.43
    methyl formate 2.84
    2-methyl-1-butanol 0.44
    n-decane 0.06
    butyronitrile 0.62
    3,7-dimethyl-1-octanol 0.37
    1-chlorooctane 0.29
    1-chlorotetradecane 0.14
    n-nonane 0.05
    undecane 0.05
    tert-butylcyclohexane 0.07
    cyclooctane 0.05
    cyclopentanol 0.97
    tetrahydropyran 1.1
    tert-amyl methyl ether 0.86
    2,5,8-trioxanonane 4.0
    1-hexene 0.17
    2-isopropoxyethanol 1.1
    2,2,2-trifluoroethanol 4.03
    methyl butyrate 2.18

    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