Production of oxytetracycline using Streptomyces alboflavus (ATCC 15388)

Betamethasone

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

Purification of 6-.alpha.-deoxy-5-hydroxytetracycline

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