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system
What is the molecular formula of the molecule identified by (1'S,2'S,3R,3'aR)-1',2'-bis(thiophene-2-carbonyl)spiro[1H-indole-3,3'-2,3a-dihydro-1H-pyrrolo[1,2-a]quinoline]-2-one ?
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C29H20N2O3S2
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