You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[[N-ethyl-N'-[2-[methyl(2-pyridin-2-ylethyl)amino]-2-oxoethyl]carbamimidoyl]amino]ethyl]cyclopropanecarboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H30N6O2
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