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Clobetasol-17-propionate Impurities

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93686 (17R)-4′-Chloro-5′-ethyl-9-fluoro-11β-hydroxy-16β-methylspiro[androsta-1,4-diene-17,2′(3′H)-furan]-3,3′-dione pharmaceutical impurity standard, ≥95.0% (HPLC) Clobetasol Related Compound A (USP) Clobetasol impurity J (PhEur)