You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule octasodium;[2-(3,4-disulfonatooxyphenyl)-5-[[4-[[2-(3,4-disulfonatooxyphenyl)-4-oxo-3,7-disulfonatooxychromen-5-yl]oxymethyl]phenyl]methoxy]-4-oxo-3-sulfonatooxychromen-7-yl] sulfate into molecular formula.
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C38H18Na8O38S8
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