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(-)-Epigallocatechin gallate CAS 989-51-5 EGCG

(-)-Epigallocatechin gallate is the most effective active ingredient in catechins, accounting for about 8% to 13% of the gross weight of green tea, and is also the component with the highest content in catechins. (-)-Epigallocatechin Chemicalbook gallate is an ester formed by α-phenylbenzopyran and gallic acid, which has the general antioxidant properties of phenols. There are 6 ortho-phenolic hydroxyl groups in its molecular structure, so it has many properties superior to other catechins.
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(-)-Epigallocatechin gallate Basic information
Product Name: (-)-Epigallocatechin gallate
CAS: 989-51-5
MF: C22H18O11
MW: 458.37
EINECS: 479-560-7
Mol File: 989-51-5.mol
(-)-Epigallocatechin gallate Chemical Properties
Melting point  222-224°C
alpha  D -185 ±2°(ethanol)
refractive index  -175.5 ° (C=1, EtOH)
storage temp.  2-8°C
solubility  H2O: ≥5mg/mL, clear
pKa 7.5±0.25(Predicted)
Boiling point  909.1±65.0 °C(Predicted)
density  1.90±0.1 g/cm3(Predicted)
form  Solid
color  White to Light Brown
biological source green tea
Water Solubility  Soluble in ethanol, dimethyl formamide, water.
Merck  143,526
Stability: Stable, but may be light sensitive. Incompatible with strong oxidizing agents.
InChIKey WMBWREPUVVBILR-WIYYLYMNSA-N
LogP 0.639 (est)
CAS DataBase Reference 989-51-5(CAS DataBase Reference)

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