Molecule of the Week (MOTW)
This Week's Clue
About Molecule of the Week
MOTW has been a popular feature on this site since 2001. Many molecules are suggested by our website visitors. Every structure is reviewed by a scientist and displayed in 3-D and flat images with a brief description.
Each week’s molecule also links to a sample record from the CAS REGISTRY, which is searched using SciFinder. Each record displays the registry number, index name and synonyms, bibliographic information, and more.