You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[5,6-dichloro-2-[(4-nitrophenyl)methylsulfanyl]benzimidazol-1-yl]-5-(hydroxymethyl)oxolane-3,4-diol .
user
C19H17Cl2N3O6S
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