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system
Provide the molecular formula for the IUPAC named substance 5-(6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolin-2-ium-1-yl)-6-oxo-3-(2-phenylethyl)-2-sulfanylidenepyrimidin-4-olate .
user
C23H25N3O4S
assistant