You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-chloro-2-fluoro-4-[4-[[2-[(4-methoxyphenyl)methyl]pyrrolidin-2-yl]methylamino]butylamino]-N-(1,3-thiazol-2-yl)benzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H33ClFN5O3S2
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