You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[[4-amino-5-(2,4-dichlorophenyl)-1,2,4-triazol-3-yl]sulfanyl]-N-(1,7,7-trimethyl-2-bicyclo[2.2.1]heptanyl)acetamide by IUPAC nomenclature, provide its molecular formula.
user
C20H25Cl2N5OS
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