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What is the molecular formula of the molecule N-(3-acetylphenyl)-4,7-dioxa-13-thia-11-azatetracyclo[8.7.0.03,8.012,16]heptadeca-1(17),2,8,10,12(16),14-hexaene-14-carboxamide ?
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C22H16N2O4S
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