Osilodrostat phosphate Racemic

Osilodrostat phosphate Racemic About

Osilodrostat phosphate (racemic) refers to a 1:1 mixture of its enantiomers, commonly described by the synonym racemic osilodrostat phosphate or ()-osilodrostat phosphate, in contrast to the single active enantiomer used in therapy. While the pharmacological activity in Cushing's disease is primarily associated with the optically pure form that inhibits 11-hydroxylase, the racemic mixture is mainly relevant in industrial and developmental contexts. It is often encountered as an intermediate during synthesis before chiral resolution or asymmetric synthesis is applied to obtain the desired enantiomer. Industrially, racemic osilodrostat phosphate is used in process optimization, impurity profiling, and analytical method development, helping refine large-scale manufacturing routes and ensure enantiomeric purity in the final API. It also serves as a reference material in chiral separation studies and quality control processes within pharmaceutical production.