You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[1-[4-(3-amino-1H-indazol-6-yl)-5-chloro-1H-imidazol-2-yl]-2-phenylethyl]-3-[(5-chloro-2-ethoxyphenyl)methyl]urea into its molecular formula.
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C28H27Cl2N7O2
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