Spironolactone - API Standards

52-01-7

7a,7a)-7-(Acetylthyo)-17-hydroxy-3-oxopregn-4-one-21-carboxylic Acid γ-Lactone; 7a-Acetylthio-3-oxo-17a-pregn-4-ene-21,17-carbolactone; Adactone; Pregn-4-ene-21-carboxylic acid, 7-(acetylthio)-17-hydroxy-3-oxo-, γ-lactone, (7α,17α)-; 17-Hydroxy-7α-mercapto-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone acetate; (2′R)-7α-(Acetylthio)-3′,4′-dihydro-5′H-spiro[androst-4-ene-17,2′-furan]-3,5′-dione (USP);