You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-[5-(4-chloro-3-nitrobenzoyl)-6,7-dihydro-4H-[1,3]thiazolo[5,4-c]pyridin-2-yl]-3-cyclopentylurea ?
user
C19H20ClN5O4S
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