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.
Keywords from Image Description:
Nitrilotriacetic acid molecule ball. Ballandstick model of the nitrilotriacetic acid molecule chelating agent This image shows the electrically neutral form Color code Carbon black FFF Hydrogen white FEE Oxygen red CFA Nitrogen blue own DS Visualizer Jynto talk Neutral form spacefilling version Zwitterionic form ballandstick version