Fig. 2From: Antioxidative phytochemicals from Rhododendron oldhamii Maxim. leaf extracts reduce serum uric acid levels in potassium oxonate-induced hyperuricemic mice a The online HPLC–DPPH chromatograms of the EtOAc fraction from R. oldhamii leaf extract. b Isolated and identified phytochemicals: (2R, 3R)-epicatechin (1), (2R, 3R)-taxifolin (2), (2R, 3R)-astilbin (3), hyposide (4), guaijaverin (5), and quercitrin (6)Back to article page