Figure 3.
ESI-MS/MS spectra of EGCG-4″-O-β-D-glucupyranoside standard (m/z 633 [M-H]−) and the major ESI-MS3 (negative ion) spectra of 7-O-β-D-glucopyranosyl-EGCG-4″-O-β-D-glucupyranoside.
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