. 2020 Jun 13;25(12):2743. doi: 10.3390/molecules25122743
© 2020 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 (http://creativecommons.org/licenses/by/4.0/).
Figure 1.
Chemical structure of piperine (PPN).