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-[1-[2-(2,6-dimethylphenoxy)ethyl]azepan-1-ium-1-yl]ethyl 2-chlorobenzoate;yttrium by IUPAC nomenclature, provide its molecular formula.
user
C25H33ClNO3Y+
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