You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S)-2-[furan-2-carbonyl-[[4-[2-(methylcarbamoylsulfamoyl)-5-(2-methylpropyl)thiophen-3-yl]phenyl]methyl]amino]-3-methylbutanoic acid by IUPAC nomenclature, provide its molecular formula.
user
C27H33N3O7S2
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