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. 2021 Aug 9;22(16):8559. doi: 10.3390/ijms22168559

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© 2021 by the authors.

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

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Chemical structures of (a) carboxypyranocyanidin-3-O-glucoside (carboxypyCy-3-glc) and (b) carboxypyranomalvidin-3-O-glucoside (carboxypyMv-3-glc), the main pyranoanthocyanin present in the carboxypyrano-ant extract.