Methylprednisolone sodium succinate is pregna-1,4-diene-3,20-dione,21-(3-carboxy-1-oxopropoxy)-11,17-dihydroxy-6-methyl-,monosodium salt, (6α, 11β) and the molecular weight is 496.53.
Methylprednisolone sodium succinate USP occurs as a white or nearly white, odorless, hygroscopic, amorphous solid. It is very soluble in water and alcohol, insoluble in chloroform and very slightly soluble in acetone.
Methylprednisolone sodium succinate is extremely soluble in water that it may be administered with a small volume of diluent and is especially well-suited for IV use in situations in which high blood levels of methylprednisolone are required rapidly.