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. 2021 Apr 22;12:575726. doi: 10.3389/fphar.2021.575726

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Copyright © 2021 He, Zhang, Ma, Giancaspro, Bi and Li.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Typical chromatograms of (A) mixed standard solution, (B) C. morifolium flower and (C) C. indicum flower with the compounds numbered as follows: (1) neochlorogenic acid; (2) chlorogenic acid; (3) cryptochlorogenic acid; (4) caffeic acid; (5) luteolin-7-O-rutinoside; (6) luteolin-7-O-glucoside; (7) luteolin-7-O- glucuronide; (9) isochlorogenic acid B (10) isochlorogenic acid A (11) apigenin-7-O-glucoside; (13) isochlorogenic acid C; (15) diosmetin-7-O-glucoside; (16) apigenin-7-O-6″-malonylglucoside (18) linarin.