way 100635 and its Impurities

WAY-100635 is a piperazine drug and research chemical widely used in scientific studies. It was originally believed to act as a selective 5-HT1A receptor antagonist, but subsequent research showed that it also acts as potent full agonist at the D4 receptor.It is sometimes referred to as a silent antagonist at the former receptor. It is closely related to WAY-100135. Reference standards of Way 100635 API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.