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. 2016 Mar 25;21(4):404. doi: 10.3390/molecules21040404

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© 2016 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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The selected segment of HPLC-DAD chromatogram of the ethyl acetate fraction (EAF) recorded at 254 nm. Peak assignments (tentative identification): 1. caffeic acid; 2. isoorientin; 3. isovitexin; 4. swertisin; 5. ferulic acid; 6. 1β,10β-epoxydesacetoxymatricarin; 7. leucodin.