What are the physical and chemical properties of 8-Fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6H-azepino[5,4,3-cd]indol-6-one phosphate (1:1) (CAS: 459868-92-9)?

The compound 8-Fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6H-azepino[5,4,3-cd]indol-6-one phosphate (1:1) has a molecular weight of approximately 554.6 g/mol. It is a white to off-white crystalline powder with a very low solubility in water but good solubility in organic solvents like methanol and dimethyl sulfoxide. Chemically, it is stable but should be handled under an inert atmosphere due to its potential to react with moisture and oxygen. It is also a weak base and can form salts with acids.