You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl (2E,5R)-5-(4-chlorophenyl)-2-[(1,3-diphenylpyrazol-4-yl)methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C32H25ClN4O3S
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