6α-Fluoroprednisolone
6α-Fluoroprednisolone (Fluprednisolone) is an internal standard for methylprednisolone, prednisolone and prednisone. 6α-Fluoroprednisolone is an anti-inflammatory agent. 6α-Fluoroprednisolone can be used for congenital adrenal virilism and Addison's disease research[3].