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 5-amino-6-[2-(2-tricyclo[9.4.0.03,8]pentadeca-1(15),3,5,7,11,13-hexaenylcarbamothioyl)hydrazinyl]pyridine-3-carboxylic acid is given. What is its corresponding molecular formula?
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C22H21N5O2S
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