You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-chloro-N-[(1R)-2-methyl-1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)propyl]-3-morpholin-4-ylsulfonylbenzamide into its molecular formula.
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C21H24ClN5O4S
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