15845-96-2 6alpha,9-Difluoro-11beta,21-dihydroxy-16alpha-methylpregna-1,4-diene-3,20-dione 21-pivalate Diflucortolone pivalate Diflucortolone pivalate [USAN] EINECS 239-953-4 Pregna-1,4-diene-3,20-dione, 21-(2,2-dimethyl-1-oxopropoxy)-6,9-difluoro-11-hydroxy-16-methyl-, (6alpha,11beta,16alpha)- SH 968