Sodium Citrate: Sodium Citrate is the sodium salt of citrate with alkalinizing activity. Anhydrous: C6H5O7Na3; Hydrated: C6H5O7Na3·nH2O (n = 2 or 5) or C6H5Na3O7/ C6H5O7. 3Na or Na3C6H5O7 or C6H5Na3O7. https://pubchem.ncbi.nlm.nih.gov/compound/Sodium_citrate#section=Top