This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Metenkephalin molecule ball. Ballandstick model of the metenkephalin molecule also known as opioid growth factor peptide with opioid effects own DS Visualizer Jynto more from this user Spacefilling version cczero Images by Jynto Peptides Opioids Ballandstick models
Page 2023 Free-images.com. All images are Public Domain