You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(2-bromophenyl)sulfanyl-2-methyl-5-phenyl-1,2-thiazol-2-ium;molecular iodine;iodide by IUPAC nomenclature, provide its molecular formula.
user
C16H13BrI3NS2
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