Standards; Isotopic Labeled Analogues; Pharmaceutical/API Drug Impurities/Metabolites; Steroids;
應(yīng)用:
Labelled Betamethasone 21-Valerate (B327080). Betamethasone 21-Valerate is an isomeric impurity of Betamethasone 17-Valerate (B327075), as an corticosteroid. Betamethasone 21-Valerate was generated in the stress study of the active drug Betamethasone 17-Valerate (B327075).