You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[[1-(2-chlorophenyl)-2,5-dimethylpyrrol-3-yl]methylidene]-5-imino-2-(3-methylphenyl)-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H20ClN5OS
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