Figure 1.
The structures of (−)-epigallocatechin-3-gallate (EGCG), (−)-epigallocatechin (EGC), (−)-epicatechin (EC), (−)-epicatechin-3-gallate(ECG), theaflavins (TFs), and thearubigins (TRs, conjecture from Haslam E. Phytochemistry 2003, 64: 61–73).