You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[5-(5-chloro-2-methylphenyl)sulfonyl-6,7-dihydro-4H-[1,3]thiazolo[5,4-c]pyridin-2-yl]-3-propan-2-ylurea into its molecular formula.
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C17H21ClN4O3S2
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