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-bromo-2-[3-[3-[6-bromo-4-carboxy-2,2-dimethyl-9-(2-methylprop-2-enoyloxy)-7-oxononanoyl]oxy-2,2-bis[[6-bromo-4-carboxy-2,2-dimethyl-9-(2-methylprop-2-enoyloxy)-7-oxononanoyl]oxymethyl]propoxy]-2,2-dimethyl-3-oxopropyl]-7-(2-methylprop-2-enoyloxy)-5-oxoheptanoic acid into molecular formula.
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C69H96Br4O28
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