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system
What is the molecular formula of the molecule identified by 2-[4-chloro-6-[4-(cyclopropanecarbonyl)piperazin-1-yl]pyrimidin-2-yl]sulfanyl-1-(1,4-dioxa-8-azaspiro[4.5]decan-8-yl)ethanone ?
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C21H28ClN5O4S
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