You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[2-(4-ethoxyphenyl)benzotriazol-5-yl]carbamothioyl]-2,1,3-benzothiadiazole-5-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H17N7O2S2
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