SPL Set ID: 549d38db-d4ed-4708-8f76-7cdaa157063f

11.1 Chemical Characteristics OPTIRAY (ioversol injection) is a non-ionic radiographic contrast agent. OPTIRAY formulations are sterile, nonpyrogenic, aqueous solutions intended for intravascular use. Ioversol is designated chemically as N,N '-Bis (2,3-dihydroxypropyl)-5-[ N -(2-hydroxyethyl) -glycolamido] -2,4,6-triiodoisophthalamide. The molecular weight of ioversol is 807.11 and the organically bound iodine content is 47.2%. The structural formula of ioversol is as follows: OPTIRAY is available in three strengths: OPTIRAY 300 (ioversol injection 64%): Each mL contains 300 mg organically bound iodine, 636 mg ioversol, 3.6 mg, tromethamine, 0.2 mg edetate calcium disodium. OPTIRAY 320 (ioversol injection 68%): Each mL contains 320 mg organically bound iodine, 678 mg of ioversol, 3.6 mg tromethamine, 0.2 mg edetate calcium disodium. OPTIRAY 350 (ioversol injection 74%): Each mL contains 350 mg organically bound iodine, 741 mg ioversol, 3.6 mg tromethamine, 0.2 mg edetate calcium disodium. The pH of the OPTIRAY formulations is adjusted to 6.0 to 7.4 with hydrochloric acid or sodium hydroxide. All solutions are sterilized by autoclaving and contain no preservatives. Ioversol does not dissociate in solution. structure 11.2 Physical Characteristics Some physical and chemical properties of these formulations are listed below: OPTIRAY 300 OPTIRAY 320 OPTIRAY 350 Ioversol content (mg/mL) 636 678 741 Iodine content (mg I/mL) 300 320 350 Osmolality (mOsm/kg water) 651 702 792 Viscosity (cps) at 25°C 8.2 9.9 14.3 at 37°C 5.5 5.8 9.0 Specific Gravity at 37°C 1.352 1.371 1.405 The OPTIRAY formulations are clear, colorless to pale yellow solutions containing no undissolved solids. Crystallization does not occur at room temperature. OPTIRAY solutions have osmolalities 1.8 to 2.8 times that of plasma (285 mOsm/kg water) as shown in the above table and are hypertonic under conditions of use.