11beta,17,21-Trihydroxy-6alpha-methylpregna-1,4-diene-3,20-dione 21-(hydrogen succinate) 2375-03-3 2921-57-5 EINECS 220-863-9 METHYLPREDNISOLONE HEMISUCCINATE Methylprednisolone 21-(hydrogen succinate) Pregna-1,4-diene-3,20-dione, 21-(3-carboxy-1-oxopropoxy)-11,17-dihydroxy-6-methyl-, (6alpha,11beta)-