You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tetrasodium;5-[[3-[(5-chloro-2,6-difluoropyrimidin-4-yl)amino]benzoyl]amino]-3-[(2,5-disulfonatophenyl)diazenyl]-4-hydroxynaphthalene-2,7-disulfonate by IUPAC nomenclature, provide its molecular formula.
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C27H13ClF2N6Na4O14S4
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