You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[[2,6-diiodo-4-[(Z)-[(3-methoxynaphthalene-2-carbonyl)hydrazinylidene]methyl]phenoxy]methyl]benzoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H20I2N2O5
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