You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 4-[4-[2-[bis(2-hydroxyethyl)amino]ethylamino]phenyl]imino-5-iminocyclohex-2-en-1-one is given. What is its corresponding molecular formula?
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C18H24N4O3
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