You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(2R,3S,4R,6R)-6-(N,N-dimethylcarbamimidoyl)sulfanyl-3,4-dihydroxyoxan-2-yl]methyl N-ethylcarbamate by IUPAC nomenclature, provide its molecular formula.
user
C12H23N3O5S
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