CAS Registry Number

CAS 152-58-9 — Reichstein's substance S R "Impurity F" - Reference Standard

Reichstein’s substance S R "Impurity F" (CAS 152-58-9) is a reference standard used primarily for analytical validation in steroid hormone research, particularly in cortisol and cortisone synthesis studies. It serves as a calibration marker for HPLC, GC-MS, and NMR analysis to ensure accuracy in impurity profiling. This chemical has a molecular formula of C21H30O4 and a molecular weight of 346.46 g/mol. It is stable at ambient temperatures and requires careful handling, as indicated by its **warning** signal word for potential hazards. Molekula supplies Reichstein’s substance S R "Impurity F" from research to bulk quantities with full documentation and ISO 9001:2015 traceability.