You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-(2-chloro-5-nitrophenyl)-4-pyridin-1-ium-2-ylpiperazine-1-carbothioamide is given. What is its corresponding molecular formula?
user
C16H17ClN5O2S+
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