You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[4-[tert-butyl(dimethyl)silyl]oxyphenyl]ethoxy-[(2S)-5-oxo-5-phenylmethoxy-2-phenylmethoxycarbonylpentyl]phosphinous acid by IUPAC nomenclature, provide its molecular formula.
user
C34H45O7PSi
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