The chemical adventures of Sherlock Holmes: The death puzzle at 221B BakerStreet

The following story describes a chemical mystery with an emphasis on medici nal chemistry and qualitative analysis. This is the tenth article in a seri es presenting a scientific problem in mystery format in the context of the popular and beloved characters Sherlock Holmes and Dr. Watson (1, 2). There is a break in the story where readers (students and teachers) can ponder a nd solve the mystery. Sherlock Holmes provides his solution in the paragrap hs following this break.