You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[[[1-(cyclohexylmethyl)pyrrolidin-2-yl]methylamino]-(ethylamino)methylidene]amino]-N,N-dimethylacetamide;hydroiodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H38IN5O
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