Chemical intermediate

The term 'Chemical intermediate' refers to a transient molecular entity that is formed during a chemical reaction from the starting materials and reacts further to produce the final products. According to the IUPAC Compendium of Chemical Terminology, an intermediate has a lifetime longer than a molecular vibration but is generally not the end goal of the reaction sequence. In the context of drug discovery and pharmacology, this term is a generic descriptor for any substance in a metabolic or synthetic pathway rather than a specific, targetable biological macromolecule such as a receptor or enzyme. Because it does not represent a unique protein or druggable site, it is not considered a valid therapeutic target. Consequently, it lacks specific biological functions, disease associations, or clinical applications in the traditional sense of target identification.

Not applicable