(9β,11β,16α)-21-Chloro-9,11-epoxy-17-[(2-furanylcarbonyl)oxy]-16-methylpregna-1,4-diene-3,20-dione

(9β,11β,16α)-21-Chloro-9,11-epoxy-17-[(2-furanylcarbonyl)oxy]-16-methylpregna-1,4-diene-3,20-dione, certified reference material