You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[[6-amino-5-[3-amino-4-(cyclobutylmethylsulfamoyl)-2-oxopyridin-1-yl]-2-methyl-3-methylidene-2H-pyridin-4-yl]methyl]formamide into its molecular formula.
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C19H26N6O4S
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