You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2-dimethylbicyclo[2.2.1]heptane;7,7-dimethylbicyclo[2.2.1]heptane;1,1-dimethylcyclobutane;1,1-dimethylcyclohexane;8,8-dimethyltricyclo[5.2.1.02,6]decane;ethane;2-methylpropane;naphthalene;pyrene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C376H508
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