You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-[1-hydroxy-2-[4-(2-methylphenyl)piperazin-1-yl]ethyl]-2-(2H-tetrazol-5-yl)phenol into molecular formula.
user
C20H24N6O2
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