You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4Z)-5-(3-bromophenyl)-1-[5-[(2-chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-4-[hydroxy-(4-methoxyphenyl)methylidene]pyrrolidine-2,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H19BrClN3O4S2
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