Chinese gallotannin

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  • Identifiers

    CAS number
    5424-20-4

    Molecular formula
    C76H52O46

    SMILES
    C1=C(C=C(C(=C1O)O)O)C(=O)OC2=CC(=CC(=C2O)O)C(=O)OC[C@@H]3[C@H]([C@@H]([C@H]([C@@H](O3)OC(=O)C4=CC(=C(C(=C4)OC(=O)C5=CC(=C(C(=C5)O)O)O)O)O)OC(=O)C6=CC(=C(C(=C6)OC(=O)C7=CC(=C(C(=C7)O)O)O)O)O)OC(=O)C8=CC(=C(C(=C8)OC(=O)C9=CC(=C(C(=C9)O)O)O)O)O)OC(=O)C1=CC(=C(C(=C1)OC(=O)C1=CC(=C(C(=C1)O)O)O)O)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 80.85%
    Phenolic 26.13%
    Balsamic 22.81%
    Burnt 19.62%
    Savory 14.61%
    Clean 13.83%
    Milky 13.66%
    Bitter 11.79%
    Vanilla 11.79%
    Smoky 11.72%

     

    Flavor
    Bitter 89.28%
    Odorless 43.33%
    Bland 38.08%
    Sweet-like 23.92%
    Very mild 22.42%
    Mild 20.44%
    Cedarleaf 19.38%
    Parsley 18.99%
    Nitrile 18.78%
    Eugenol 18.76%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    6.2

    pKa est.
    6.03 (neutral)

    Molecular weight
    1701.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    5386°C

    Flash point

    • 184.93 ˚C est.

  • Synonyms

    • TANNIC ACID
    • Gallotannin
    • Glycerite
    • Chinese gallotannin
    • 5424-20-4
    • Gallotannic acid
    • MFCD00066397
    • MLS001335996
    • CHEBI:81066
    • [2,3-dihydroxy-5-[[(2R,3R,4S,5R,6S)-3,4,5,6-tetrakis[[3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyl)oxybenzoyl]oxy]oxan-2-yl]methoxycarbonyl]phenyl] 3,4,5-trihydroxybenzoate
    • SMR000857330
    • DSSTox_CID_6076
    • DSSTox_RID_78006
    • DSSTox_GSID_26076
    • [2,3-Dihydroxy-5-[[3,4,5,6-tetrakis[[3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyl)oxybenzoyl]oxy]oxan-2-yl]methoxycarbonyl]phenyl] 3,4,5-trihydroxybenzoate
    • Tannicum acidum
    • FEMA No. 3042
    • beta-D-Glucose pentakis(3,4-dihydroxy-5-((3,4,5-trihydroxybenzoyl)oxy)benzoate)
    • BETA-D-GLUCOSE PENTAKIS[3,4-DIHYDROXY-5-[(3,4,5-TRIHYDROXYBENZOYL)OXY]BENZOATE]
    • (2S,3R,4S,5R,6R)-6-(((3,4-Dihydroxy-5-((3,4,5-trihydroxybenzoyl)oxy)benzoyl)oxy)methyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetrakis(3,4-dihydroxy-5-((3,4,5-trihydroxybenzoyl)oxy)benzoate)
    • CAS-1401-55-4
    • tannic-acid
    • NSC656273
    • NSC-656273
    • NSC-758670
    • NCGC00095101-01
    • EINECS 226-562-9
    • TANNICACID
    • Tannin (Tannic acid)
    • Tannic acid, technical
    • Asian holly oak nutgall
    • Tannic acid, ACS reagent
    • Tannic acid, technical grade
    • MLS001335995
    • SCHEMBL409692
    • Tannic acid, SAJ first grade
    • CHEMBL506247
    • GTPL4319
    • BDBM60986
    • DTXSID00892987
    • Tannic acid, puriss., 95.0%
    • cid_16129778
    • Tox21_111422
    • Tox21_300079
    • BDBM50442879
    • s3951
    • AKOS015951319
    • Tannic acid, Vetec(TM) reagent grade
    • CCG-270692
    • MT30443
    • NCGC00186054-01
    • NCGC00186054-02
    • NCGC00253925-01
    • DA-51833
    • Tannic acid, tested according to Ph.Eur.
    • HY-135530
    • CS-0113395
    • NS00093444
    • C17409
    • Tannic acid, Source: Chinese natural gall nuts
    • Q427956
    • Tannic acid, puriss., meets analytical specification of USP, powder
    • Tannic acid, United States Pharmacopeia (USP) Reference Standard
    • .Beta.-D-glucopyranose, pentakis[3,4-dihydroxy-5-[(3,4,5-trihydroxybenzoyl)oxy]benzoate]
    • (2R,3R,4S,5R,6S)-4,5,6-tris({3,4-dihydroxy-5-[(3,4,5-trihydroxyphenyl)carbonyloxy]phenyl}carbonyloxy)-2-[({3,4-dihydroxy-5-[(3,4,5-trihydroxyphenyl)carbonyloxy]phenyl}carbonyloxy)methyl]oxan-3-yl 3,4-dihydroxy-5-[(3,4,5-trihydroxyphenyl)carbonyloxy]benzoate
    • [2,3-dihydroxy-5-[[(2R,3R,4S,5R,6S)-3,4,5,6-tetrakis[[3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyl)oxy-benzoyl]oxy]tetrahydropyran-2-yl]methoxycarbonyl]phenyl] 3,4,5-trihydroxybenzoate
    • [2,3-dihydroxy-5-[[(2R,3R,4S,5R,6S)-3,4,5,6-tetrakis[[3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyl)oxybenzoyl]oxy]oxan-2-yl]methoxycarbonyl]phenyl]3,4,5-trihydroxybenzoate

  • Applications

    Chinese gallotannin (CAS 5424-20-4) is a hydrolyzable tannin widely used as a natural tanning agent in leather production; it is also considered a component of tannin-based binders for wood, paper, and composite materials. In coatings and inks, it can serve as a natural colorant and mordant, while in polymer and plastic formulations it may act as an antioxidant and stabilizer. It is used as a coagulant and chelating agent in industrial wastewater treatment. In cosmetics and personal care, it is sometimes used as a natural colorant or antioxidant additive in formulations, subject to regulatory limits and regional requirements.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1.78
    methanol 2.18
    isopropanol 1.25
    water 0.12
    ethyl acetate 1.7
    n-propanol 1.6
    acetone 2.8
    n-butanol 0.72
    acetonitrile 0.86
    DMF 52.79
    toluene 0.35
    isobutanol 0.58
    1,4-dioxane 10.78
    methyl acetate 3.76
    THF 22.63
    2-butanone 2.99
    n-pentanol 0.42
    sec-butanol 1.19
    n-hexane 0.02
    ethylene glycol 4.59
    NMP 42.21
    cyclohexane 0.03
    DMSO 37.6
    n-butyl acetate 0.5
    n-octanol 0.75
    chloroform 0.82
    n-propyl acetate 0.7
    acetic acid 7.3
    dichloromethane 0.87
    cyclohexanone 1.86
    propylene glycol 6.7
    isopropyl acetate 0.99
    DMAc 50.05
    2-ethoxyethanol 11.83
    isopentanol 0.33
    n-heptane 0.04
    ethyl formate 1.31
    1,2-dichloroethane 0.6
    n-hexanol 0.2
    2-methoxyethanol 28.65
    isobutyl acetate 0.19
    tetrachloromethane 0.09
    n-pentyl acetate 1.07
    transcutol 19.85
    n-heptanol 0.57
    ethylbenzene 0.11
    MIBK 0.47
    2-propoxyethanol 6.9
    tert-butanol 0.98
    MTBE 1.19
    2-butoxyethanol 5.81
    propionic acid 3.56
    o-xylene 0.25
    formic acid 8.7
    diethyl ether 1.34
    m-xylene 0.17
    p-xylene 0.1
    chlorobenzene 0.11
    dimethyl carbonate 5.79
    n-octane 0.03
    formamide 13.9
    cyclopentanone 7.07
    2-pentanone 1.41
    anisole 1.04
    cyclopentyl methyl ether 3.14
    gamma-butyrolactone 13.43
    1-methoxy-2-propanol 20.52
    pyridine 4.43
    3-pentanone 1.38
    furfural 9.03
    n-dodecane 0.02
    diethylene glycol 7.62
    diisopropyl ether 0.21
    tert-amyl alcohol 1.11
    acetylacetone 3.47
    n-hexadecane 0.03
    acetophenone 0.86
    methyl propionate 4.13
    isopentyl acetate 0.29
    trichloroethylene 1.68
    n-nonanol 0.79
    cyclohexanol 0.61
    benzyl alcohol 0.86
    2-ethylhexanol 0.13
    isooctanol 0.35
    dipropyl ether 1.01
    1,2-dichlorobenzene 0.11
    ethyl lactate 1.93
    propylene carbonate 2.1
    n-methylformamide 12.81
    2-pentanol 0.5
    n-pentane 0.03
    1-propoxy-2-propanol 5.25
    1-methoxy-2-propyl acetate 2.83
    2-(2-methoxypropoxy) propanol 5.08
    mesitylene 0.08
    ε-caprolactone 3.05
    p-cymene 0.08
    epichlorohydrin 9.32
    1,1,1-trichloroethane 0.23
    2-aminoethanol 5.44
    morpholine-4-carbaldehyde 51.55
    sulfolane 22.1
    2,2,4-trimethylpentane 0.02
    2-methyltetrahydrofuran 4.3
    n-hexyl acetate 1.18
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 7.63
    sec-butyl acetate 0.4
    tert-butyl acetate 1.12
    decalin 0.01
    glycerin 22.91
    diglyme 19.01
    acrylic acid 5.31
    isopropyl myristate 0.38
    n-butyric acid 1.69
    acetyl acetate 1.05
    di(2-ethylhexyl) phthalate 0.33
    ethyl propionate 1.06
    nitromethane 17.8
    1,2-diethoxyethane 2.95
    benzonitrile 0.31
    trioctyl phosphate 0.33
    1-bromopropane 0.23
    gamma-valerolactone 25.96
    n-decanol 0.49
    triethyl phosphate 0.52
    4-methyl-2-pentanol 0.18
    propionitrile 0.65
    vinylene carbonate 2.01
    1,1,2-trichlorotrifluoroethane 15.89
    DMS 1.81
    cumene 0.05
    2-octanol 0.47
    2-hexanone 0.6
    octyl acetate 0.7
    limonene 0.12
    1,2-dimethoxyethane 13.65
    ethyl orthosilicate 0.54
    tributyl phosphate 0.26
    diacetone alcohol 3.3
    N,N-dimethylaniline 0.9
    acrylonitrile 1.52
    aniline 0.96
    1,3-propanediol 5.17
    bromobenzene 0.09
    dibromomethane 0.32
    1,1,2,2-tetrachloroethane 1.56
    2-methyl-cyclohexyl acetate 0.28
    tetrabutyl urea 0.8
    diisobutyl methanol 0.11
    2-phenylethanol 0.42
    styrene 0.13
    dioctyl adipate 0.69
    dimethyl sulfate 15.44
    ethyl butyrate 0.63
    methyl lactate 9.06
    butyl lactate 1.93
    diethyl carbonate 0.45
    propanediol butyl ether 6.58
    triethyl orthoformate 1.12
    p-tert-butyltoluene 0.1
    methyl 4-tert-butylbenzoate 2.2
    morpholine 17.62
    tert-butylamine 0.32
    n-dodecanol 0.31
    dimethoxymethane 22.94
    ethylene carbonate 1.31
    cyrene 5.58
    2-ethoxyethyl acetate 3.03
    2-ethylhexyl acetate 0.23
    1,2,4-trichlorobenzene 0.26
    4-methylpyridine 1.94
    dibutyl ether 0.74
    2,6-dimethyl-4-heptanol 0.11
    DEF 5.25
    dimethyl isosorbide 6.06
    tetrachloroethylene 0.78
    eugenol 2.0
    triacetin 3.19
    span 80 4.43
    1,4-butanediol 1.57
    1,1-dichloroethane 0.34
    2-methyl-1-pentanol 0.2
    methyl formate 8.49
    2-methyl-1-butanol 0.46
    n-decane 0.06
    butyronitrile 0.37
    3,7-dimethyl-1-octanol 0.27
    1-chlorooctane 0.17
    1-chlorotetradecane 0.06
    n-nonane 0.05
    undecane 0.04
    tert-butylcyclohexane 0.01
    cyclooctane 0.02
    cyclopentanol 1.63
    tetrahydropyran 2.61
    tert-amyl methyl ether 1.37
    2,5,8-trioxanonane 11.43
    1-hexene 0.06
    2-isopropoxyethanol 4.49
    2,2,2-trifluoroethanol 4.05
    methyl butyrate 1.14

    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