What are the physical and chemical properties of Phosphonate, P,P',P'',P'''-[1,2-ethanediylbis[nitrilobis(methylene)]]tetrakis-, sodium salt (CAS: 7651-99-2)?

Phosphonate, P,P',P'',P'''-[1,2-ethanediylbis[nitrilobis(methylene)]]tetrakis-, sodium salt (CAS: 7651-99-2) is a crystalline solid with a molecular weight of approximately 512.6 g/mol. It is slightly soluble in water and less soluble in organic solvents. This compound is reactive towards nucleophiles and can participate in various chemical reactions such as esterification and condensation. It is highly soluble in common organic solvents like dichloromethane and acetonitrile.