You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
dimethyl (3E)-2,2-dimethyl-4-methylidene-3-(triethylsilylmethylidene)cyclopentane-1,1-dicarboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H32O4Si
assistant