You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named methyl (2S)-3-(2,4-dibromo-1H-imidazol-5-yl)-2-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoylamino]propanoate by IUPAC nomenclature, provide its molecular formula.
user
C15H22Br2N4O5
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