You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name butyl N-[(E)-N'-[4-[3-(4-bromobutoxy)phenyl]-1,3-thiazol-2-yl]carbamimidoyl]carbamate into its molecular formula.
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C19H25BrN4O3S
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