You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-butyl-4-(4-cyclohexyloxyphenyl)-6-[1-(4-fluoropiperidin-4-yl)ethoxy]pyridazine;dihydrochloride by IUPAC nomenclature, provide its molecular formula.
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C27H40Cl2FN3O2
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