08108

(−)-Epigallocatechin

analytical standard

• Synonym(s): (−)-cis-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol, (−)-cis-3,3′,4′,5,5′,7-Hexahydroxyflavane
• Empirical Formula (Hill Notation): C₁₅H₁₄O₇
• CAS Number: 970-74-1
• Molecular Weight: 306.27
• MDL number: MFCD00075939
• UNSPSC Code: 85151701
• PubChem Substance ID: 329748549
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• Assay: ≥90% (HPLC)
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• application(s): food and beverages
• format: neat
• SMILES string: O[C@@H]1Cc2c(O)cc(O)cc2O[C@@H]1c3cc(O)c(O)c(O)c3
• InChI: 1S/C15H14O7/c16-7-3-9(17)8-5-12(20)15(22-13(8)4-7)6-1-10(18)14(21)11(19)2-6/h1-4,12,15-21H,5H2/t12-,15-/m1/s1
• InChI key: XMOCLSLCDHWDHP-IUODEOHRSA-N

Description

General description

(−)-Epigallocatechin (EGC) belongs to the tea catechins group of polyphenols.

Application

EGC may be used as an analytical standard for the determination of EGC in:

• Fruit juices by high-performance liquid chromatography with diode array detection (HPLC-DAD) combined with electrospray ionization (ESI) and triple quadrupole mass spectrometry.
• Green tea standard reference materials (SRMs) by LC coupled with particle beam/electron ionization mass spectrometry (LC-PB/EIMS).
• Tea extracts by HPLC with electrochemical detection (ECD) and in plant-based foods by HPLC-DAD.

Biochem/physiol Actions

Green tea polyphenol. Anticancer agent. Lower antioxidant activity than EGCG.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves