Spironolactone EP Impurity B

Order Spironolactone EP Impurity B product with CAS: NA and speed up your Spironolactone project. This product is also known as 4-Bromo-spironolactone; S-[(2′R)-4-bromo-3,5′-dioxo-3′,4′-dihydro-5′H-spiro[androst-4-ene-17,2′-furan]-7α-yl] ethanethioate; (2′R)-7α-(Acetylsulfanyl)-4-bromo-3′,4′-dihydro-5′H-spiro[androst-4-ene-17,2′-furan]-3,5′-dione; . and can be used as a working standard or secondary reference standard. Additional internal validation as per respective FDA regulations/guidelines may require.