You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(2R,3R,4R)-3-bis[3,5-bis(trimethylsilyl)phenyl]phosphanyloxy-2-(trityloxymethyl)oxan-4-yl]oxy-bis[3,5-bis(trimethylsilyl)phenyl]phosphane by IUPAC nomenclature, provide its molecular formula.
user
C73H108O4P2Si8
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