What are the physical and chemical properties of 4-Chloro-1,2-dihydro-3H-indazol-3-one (CAS: 787580-87-4)?

4-Chloro-1,2-dihydro-3H-indazol-3-one is a crystalline solid with a molecular weight of approximately 218.6 g/mol. It is slightly soluble in water and has good solubility in organic solvents like methanol and ethanol. Chemically, it is relatively stable but can undergo substitution reactions with nucleophiles. It reacts with bases to form salts and can also undergo reduction and oxidation reactions.