Synonyms: Pregna-1,4-diene-3,11,20-trione,17,21-dihydroxy-, 21-(hydrogen succinate) (7CI,8CI);Pregna-1,4-diene-3,11,20-trione, 17,21-dihydroxy-, 21-succinate (6CI); Succinicacid, 21-monoester with 17,21-dihydroxypregna-1,4-diene-3,11,20-trione (8CI);Prednisone 21-hemisuccinate