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 ≥95.0% (HPLC), pharmaceutical impurity standard Clobetasol Related Compound A (USP) Clobetasol impurity J (PhEur)
38325 21-Chloro-9-fluoro-11β-hydroxy-16-methylpregna-1,4,16-triene-3,20-dione ≥95.0% (HPLC), pharmaceutical impurity standard Clobetasol impurity B (PhEur)
73529 Clobetasol pharmaceutical impurity standard, ≥95.0% (HPLC) (11β,16β)-21-Chloro-9-fluoro-11,17-dihydroxy-16-methylpregna-1,4-diene-3,20-dione Clobetasol propionate impurity G (PhEur)