You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (2-chloro-4,6-dimethylphenyl)-(6-chloro-2-methylimidazo[1,2-a]pyridin-3-yl)diazene by IUPAC nomenclature, provide its molecular formula.
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C16H14Cl2N4
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