You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 6-[(1S)-1-[6-(4-ethylsulfonylphenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl]ethyl]quinoline into molecular formula.
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C24H21N5O2S
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