What are the physical and chemical properties of Abemaciclib Impurity 1 (CAS: 1231930-33-8)?

Abemaciclib Impurity 1 is a crystalline solid with a molecular weight of approximately 565.6 g/mol. It has a low solubility in water but is more soluble in polar organic solvents. Chemically, it exhibits moderate reactivity typical of its functional groups, including amide and ester functionalities. It is stable under normal storage conditions but may degrade under acidic or basic conditions.