You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2Z,5E)-5-[(4-bromophenyl)methylidene]-2-[(Z)-[(1S,4R)-1,7,7-trimethyl-2-bicyclo[2.2.1]heptanylidene]hydrazinylidene]-1,3-thiazolidin-4-one by IUPAC nomenclature, provide its molecular formula.
user
C20H22BrN3OS
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