You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-methyl-2-[3-[5-(4-methylpyridin-2-yl)-4H-benzo[b]phosphindol-4-id-3-yl]benzene-2-id-1-yl]oxypyridine;platinum(2+) by IUPAC nomenclature, provide its molecular formula.
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C30H21N2OPPt
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