» Diatrizoate Meglumine and Diatrizoate Sodium Injection is a sterile solution of Diatrizoate Meglumine and Diatrizoate Sodium in Water for Injection, or a sterile solution of Diatrizoic Acid in Water for Injection prepared with the aid of Sodium Hydroxide and Meglumine. It contains not less than 95.0 percent and not more than 105.0 percent of the labeled amounts of diatrizoate meglumine (C₁₁H₉I₃N₂O₄·C₇H₁₇NO₅) and of iodine (I). It may contain small amounts of suitable buffers and of Edetate Calcium Disodium or Edetate Disodium as a stabilizer. Diatrizoate Meglumine and Diatrizoate Sodium Injection intended for intravascular use contains no antimicrobial agents.