Protonitazene connects a small structural difference with the need for precise forensic identification.
A ketamine-related reference substance illustrates why exact structure and salt identity matter.
Exact identification matters when investigating the activity of emerging nitazene substances.
N-Desethylisotonitazene illustrates why an active metabolite needs careful pharmacological and forensic interpretation.
Why does Perfluoroheptane matter? Its most interesting chemistry is easier to remember than a list of uses.
A CAS number is an identifier, not a guarantee that every registered substance has one exact molecular formula.
What happens when a chemical is successful for decades—and then science changes the questions we ask about it?
For years, scientists in the Pacific Northwest faced a strange mystery.