Product Name

  • Name

    (-)-Gallocatechin gallate

  • EINECS 636-979-1
  • CAS No. 4233-96-9
  • Article Data34
  • CAS DataBase
  • Density 1.9 g/cm3
  • Solubility
  • Melting Point
  • Formula C22H18O11
  • Boiling Point 909.1 °C at 760 mmHg
  • Molecular Weight 458.378
  • Flash Point 320 °C
  • Transport Information
  • Appearance
  • Safety 26-36
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 4233-96-9 ((-)-Gallocatechin gallate)
  • Hazard Symbols IrritantXi
  • Synonyms Benzoicacid, 3,4,5-trihydroxy-, 3,4-dihydro-5,7-dihydroxy-2-(3,4,5-trihydroxyphenyl)-2H-1-benzopyran-3-ylester, (2S-trans)-;Gallocatechol, 3-gallate, (-)- (8CI);Gallic acid, esterwith gallocatechol, (-) (8CI);(-)-Gallocatechin 3-O-gallate;(-)-Gallocatechin3-gallate;(-)-Gallocatechol gallate;
  • PSA 197.37000
  • LogP 2.23320

(-)-Gallocatechin gallate Chemical Properties

Empirical Formula: C22H18O10
Molecular Weight: 442.3723 g/mol
Index of Refraction: 1.769
Density: 1.685 g/cm3
Flash Point: 325.2 °C
Enthalpy of Vaporization: 140.3 kJ/mol
Boiling Point: 920.9 °C at 760 mmHg
Storage tempreture: 2-8 °C
Structure of (-)-Gallocatechin gallate (CAS NO.4233-96-9):
                           
Product Category of (-)-Gallocatechin gallate (CAS NO.4233-96-9): Catechins & Tannins
IUPAC Name: [(2S,3R)-5,7-Dihydroxy-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromen-3-yl] 3,4,5-trihydroxybenzoate
Canonical SMILES: C1C(C(OC2=CC(=CC(=C21)O)O)C3=CC(=C(C(=C3)O)O)O)OC(=O)C4=CC(=C(C(=C4)O)O)O
Isomeric SMILES: C1[C@H]([C@@H](OC2=CC(=CC(=C21)O)O)C3=CC(=C(C(=C3)O)O)O)OC(=O)C4=CC(=C(C(=C4)O)O)O
InChI: InChI=1S/C22H18O11/c23-10-5-12(24)11-7-18(33-22(31)9-3-15(27)20(30)16(28)4-9)21(32-17(11)6-10)8-1-13(25)19(29)14(26)2-8/h1-6,18,21,23-30H,7H2/t18-,21+/m1/s1
InChIKey: WMBWREPUVVBILR-NQIIRXRSSA-N

(-)-Gallocatechin gallate Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral > 1gm/kg (1000mg/kg)   Japanese Kokai Tokyo Koho Patents. Vol. #93-944,

(-)-Gallocatechin gallate Safety Profile

Hazard Codes of (-)-Gallocatechin gallate (CAS NO.4233-96-9): IrritantXi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.

(-)-Gallocatechin gallate Specification

 (-)-Gallocatechin gallate , its cas register number is 4233-96-9. It also can be called (2S,3R)-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate) ; and Gallocatechol, 3-gallate, (-)- (8CI) . It is an epimer of EGCG, and is the ester of gallocatechin, gallic acid and a type of catechin. An epimerization change is likely to occur in a high temperature environment because heating results in the conversion from EGCG to GCG.

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