You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 6,19-bis(prop-2-enyl)-8,11,14,17-tetraoxa-27-thia-25,26-diazatetracyclo[22.2.1.02,7.018,23]heptacosa-1(26),2,4,6,18,20,22,24-octaene into molecular formula.
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C26H28N2O4S
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