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What is the molecular formula of the compound with this IUPAC name N,N-dimethyl-1-[[(N'-methyl-N-spiro[2-oxabicyclo[3.2.0]heptane-7,1'-cyclopentane]-6-ylcarbamimidoyl)amino]methyl]cyclopentane-1-carboxamide ?
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C21H36N4O2
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