8-Bromo-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one is an intermediate in the synthesis of 8-Deschloro-8-bromo Desloratadine (D290995), an impurity of Loratadine (L469575). 8-Deschloro-8-bromo Desloratadine may be usedto develop novel analytical applications for detecting impurities ofLoratadine.