You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[(3R,4S,5R)-3,5-bis[[tert-butyl(dimethyl)silyl]oxy]oct-1-en-7-yn-4-yl]oxy-2-methylbutan-2-ol by IUPAC nomenclature, provide its molecular formula.
user
C25H50O4Si2
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