(((11beta,16alpha)-9-Fluoro-11,17,21-trihydroxy-16-methyl-3,20-dioxopregn-1,4-dien-4-yl)thio)acetic acid 131467-45-3 4-(Carboxymethylthio)dexamethasone 4-Cmtdm Acetic acid, (((11beta,16alpha)-9-fluoro-11,17,21-trihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-4-yl)thio)-