You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R)-2-[[2-[N-(benzenesulfonyl)-2-ethylanilino]acetyl]-[(2,6-dichlorophenyl)methyl]amino]-N-[(2R)-butan-2-yl]propanamide into its molecular formula.
user
C30H35Cl2N3O4S
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