N-(4-((1S,3R)-1-Carbamoyl-3-hydroxycyclopentyl)phenyl)nicotinamide Dihydrochloride is an impurity in the synthesis of metabolites of the antiangiogenic agent and selective VEGFR2 inhibitor Apatinib (A726150). Molecular Formula: C18H21Cl2N3O3 Solubility: Methanol Molecular Weight: 398.28