Each week, this American Chemical Society (ACS) website presents educational materials on a new drug, a chemical in the news, or a common household chemical. Educators and students can find two- and sometimes three-dimensional images of the chosen molecule along with descriptions of the molecule's characteristics, its molecular formula, and other interesting facts. Each Molecule of the Week since 2001 is archived in an alphabetical list. Users can discover how to suggest a new molecule for the website to cover.