You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (5Z)-5-(1-methyl-2-oxoindol-3-ylidene)-2-(2-methylphenyl)-[1,3]thiazolo[3,2-b][1,2,4]triazol-6-one is given. What is its corresponding molecular formula?
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C20H14N4O2S
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