CAS - Molecule of the Week

Molecule of the Week
September 11, 2006

This molecule was originally selected on May 10, 2004

Regarding this week’s selected substance:

Chitin is responsible for that crunch you hear when you step on a cicada. This carbohydrate forms the naturally-occurring polymers that make up the hard outer shells of insects, spiders, crabs, and shrimp. Chitin extracted from crab and shrimp shells is compatible with human tissue and can be used for medical dressings and grafts.


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