Bifendate Impurity A

N-[5-[(2-Methylphenyl)methyl]-2-thiazolyl]-4-oxo-1,2,3-benzotriazine-3(4H)-propanamide, is an impurity of Bifendate (B382890), a synthetic intermediate of Schisandrin C and also a anti-HBV drug used in the treatment of chronic hepatitis B.