You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[[3-chloro-4-[2-(3,4-dimethylphenoxy)ethoxy]-5-methoxyphenyl]methylidene]-5-imino-2-propyl-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H27ClN4O4S
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