You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 6-(2-propoxyphenyl)-9-thiophen-2-yl-5,6,8,9,10,11-hexahydrobenzo[b][1,4]benzodiazepin-7-one into its molecular formula.
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C26H26N2O2S
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