No specific biological target

The name "No specific biological target" does not correspond to any recognized molecule, receptor, enzyme, transporter, or other canonical biological target. This phrase is typically used in scientific contexts to indicate that a particular compound’s precise molecular target is currently unknown or has not been definitively identified, rather than naming a biological entity itself. For example, artesunate’s mechanism of action is described as having "no specific biological target" identified in its primary biological context, reflecting a lack of molecular characterization rather than a true named target[1][3][4]. As such, this is not a valid or structured name for a biological target, and any record with this as a target should be marked as incorrect or invalid.