Antibiotic tetracycline complexes

16.beta.-Methyl-9.alpha.-fluoro steroids

Corticosteroid 21-sulfates and 21-phosphates

Polymetaphosphate complexes of .alpha.-deoxy-5-hydroxytetracycline

21-Sulfuric acid or 21-orthophosphoric acid ester sodium salts of prednisolone or 9.alpha.-fluoro-16.beta.-methylprednisolone

Gently and selectively acting palladium on carbon supports as hydrogenation catalysts

16.beta.-Methyl-17.alpha.-hydroxypregna-1,4,9(11)-triene-3,20-dione

Methacycline and doxycycline from 11a-chloro-6-deoxy-6-demethyl-6-methylenetetracycline

Polymetaphosphate complexes of .alpha.-6-deoxy-5-hydroxy tetracyclines

9-Fluoro-16.beta.-methyl steroids

Palladium-active carbon hydrogenation catalyst

Recovery of .alpha.-6-deoxytetracyclines from reaction mixtures