You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 5-[(7-phenyl-3,11-dithia-7-azatricyclo[6.3.0.02,6]undeca-1(8),2(6),4,9-tetraen-4-yl)methylidene]-2-sulfanylidene-1,3-diazinane-4,6-dione into molecular formula.
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C19H11N3O2S3
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