You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-[5-[[1-amino-3-(2,4-dichlorophenyl)propan-2-yl]carbamoyl]-2-chlorothiophen-3-yl]-2-[amino(methyl)amino]-1-chloroethenyl]azanium by IUPAC nomenclature, provide its molecular formula.
user
C17H20Cl4N5OS+
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