Similar names: Pregna-1,4-diene-3,20-dione, 9-fluoro-11,21-dihydroxy-16,17-[[(1-methyl-13C)ethylidene-1,2-13C2]bis(oxy)]-; Triamcinolone acetonide-13C3; Triamcinolone acetonide 13C3 (acetonide-13C3); 9-Fluoro-11β,21-dihydroxy-16α,17-[1-(methyl-13C)-1,2-13C2-ethylidenedioxy)pregna-1,4-diene-3,20-dione; 9α-Fluoro-11β,21-dihydroxy-16α,17α-(isopropylidene-13C3)dioxy-1,4-pregnadiene-3,20-dione; 9α-Fluoro-16α-hydroxyprednisolone 16α,17α-acetonide-13C3