You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named [2-(hydroxymethyl)-3-(2-methoxyphenyl)-5,10-dihydropyrrolo[1,2-b]isoquinolin-1-yl]methanol is given. What is its corresponding molecular formula?
user
C21H21NO3
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