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HPTLC fingerprints of the extracts of Rh. tomentosum and standards with increasing Rf at λ 366 nm after derivatization: 1—rosmarinic acid, 2—caffeic acid, 3—chlorogenic acid + rosmarinic acid + caffeic acid, 4—EtOH0, 5—EtOH10, 6—EtOH20, 7—EtOH30, 8—EtOH40, 9—EtOH50, 10—EtOH60, 11—EtOH70, 12—EtOH80, 13—EtOH90, 14—rutin + hyperoside + quercetin, 15—hyperoside.
