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What is the molecular formula of the molecule 3-O-(2-iodoethyl) 2-O-methyl (6R)-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2,3-dicarboxylate ?
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C17H17IN2O6S2
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