53262-68-3 Pregna-1,4-diene-3,20-dione, 6,9-difluoro-11,21-dihydroxy-16,17-((1-methylethylidene)bis(oxy))-, (6alpha,11beta,16alpha)-, mixt. with 5-chloro-7-iodo-8-quinolinol Synalar-C