You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-ethyl-2-[3-(4-methoxyphenyl)butyl]-3-(1-thiophen-2-ylpiperidin-4-yl)guanidine is given. What is its corresponding molecular formula?
user
C23H34N4OS
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