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Typical HPLC chromatogram of peach blossom extract at 280 nm. S1: chlorogenic acid; S2: unknown; S3: quercetin-3-O-rhamnoside; S4: kaempferol-3-O-galactoside; S5: quercetin-3-O-galactoside; S6: kaempferol-4-O-glucoside; S7: unknown; S8: cinnamic acid; and S9: unknown.
