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What is the molecular formula of the molecule 10-[3-(4-ethoxy-3-ethoxycarbonyl-4-oxobutyl)sulfonylanilino]-16-(1-hydroxyethylidene)-8,15-dioxo-14-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(17),2,4,6,9,11,13-heptaene-12-sulfonic acid ?
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C33H30N2O12S2
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