You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4-[[6-[[4-[(4-butyl-2-sulfophenyl)diazenyl]-2,5-bis(2-hydroxyethoxy)phenyl]diazenyl]-5-hydroxy-7-sulfonaphthalen-2-yl]diazenyl]-3-oxo-2-(4-sulfophenyl)-1H-pyrazole-5-carboxylic acid into molecular formula.
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C40H38N8O17S3
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