Glossary
What is InChIKey?
A fixed-length, 27-character hashed version of the IUPAC International Chemical Identifier (InChI), designed for searching the web and databases. The first block encodes the molecular skeleton, the second encodes stereochemistry and isotopes, and the last character indicates protonation. Two identical structures give the same InChIKey regardless of how they were drawn, which makes it useful for matching records.