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system
Translate the chemical IUPAC name ethyl 4-methyl-2-[1-[[N'-methyl-N-[(5-methyl-1,3-thiazol-2-yl)methyl]carbamimidoyl]amino]ethyl]-1,3-thiazole-5-carboxylate into its molecular formula.
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C16H23N5O2S2
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