You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[3-[[[ethylamino-[(1-ethylcyclopentyl)methylamino]methylidene]amino]methyl]phenoxy]acetamide;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C20H33IN4O2
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