You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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(5E)-2-(4-bromophenyl)imino-5-[(5-methyl-1-phenylpyrrol-3-yl)methylidene]-1,3-thiazolidin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H16BrN3OS
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