You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[2-[[2-(4-carboxy-1,3-thiazolidine-3-carbonyl)-4-chlorophenyl]disulfanyl]-5-chlorobenzoyl]-1,3-thiazolidine-4-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C22H18Cl2N2O6S4
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