Fluorescein

11.‍‍‍‍‍‍​​​‍​​​​​​ DESCRIPTION Fluorescein Injection, is a sterile solution for use intravenously as a diagnostic aid. It is a dark reddish orange solution with a pH of 8.3 to 9.8 and an osmolality of 572 to 858 mOsm/kg for the 10% and 1800 to 2200 mOsm/kg for the 25%. Its chemical name is spiro[isobenzofuran-1 (3H),9'-[9H]xanthene]-3-one,3'6'- dihydroxy, disodium salt. The active ingredient is represented by the chemical structure: MW = 376.27 Fluorescein Injection 10% contains: Active: fluorescein sodium (equivalent to fluorescein 10 % w/v, 100 mg/mL) Inactives: Sodium Hydroxide and/or Hydrochloric Acid may be used to adjust pH (8.3 to 9.8), and Water for Injection. Fluorescein Injection 25% contains: Active: fluorescein sodium (equivalent to fluorescein 25% w/v, 250 mg/mL) Inactives: Sodium Hydroxide and/or Hydrochloric Acid may be used to adjust pH (8.3 to 9.8), and Water for Injection. Chemical Structure