You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[2-[[3-(diethylamino)-2-hydroxypropyl]carbamoyl]-1-phenylindol-3-yl]oxy-2-methyl-3-oxopropanoic acid by IUPAC nomenclature, provide its molecular formula.
user
C26H31N3O6
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