You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-benzyl-N-ethyl-4-piperazin-1-ylthieno[3,2-c]pyridine-2-sulfonamide;hydrochloride using the IUPAC nomenclature.
user
C20H25ClN4O2S2
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