What are the physical and chemical properties of 6-Chloro-5-(2-chloroethyl)-1,3-dihydro-2H-indol-2-one (CAS: 118289-55-7)?

6-Chloro-5-(2-chloroethyl)-1,3-dihydro-2H-indol-2-one (CAS: 118289-55-7) is a crystalline solid with a molecular weight of approximately 295.03 g/mol. It has a low solubility in water but is more soluble in organic solvents like ethanol and acetone. The compound exhibits moderate reactivity, particularly towards nucleophilic substitution reactions. It is stable under normal conditions but should be stored in a cool, dry place away from direct sunlight.