You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (5Z)-2-[(E)-2-(4-butoxyphenyl)ethenyl]-5-[[5-(2-chlorophenyl)furan-2-yl]methylidene]-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-one into molecular formula.
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C27H22ClN3O3S
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