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What is the molecular formula of the molecule identified by (1S,2S,3R,4S)-3-[(3-ethoxycarbonyl-5,6,7,8,9,10-hexahydro-4H-cyclonona[b]thiophen-2-yl)carbamoyl]bicyclo[2.2.1]heptane-2-carboxylic acid ?
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C23H31NO5S
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