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What is the molecular formula of the compound with this IUPAC name 2-chloro-5-[[(1S,3S)-2,2-dichloro-3-(3-chloro-4-fluorophenyl)cyclopropanecarbonyl]amino]-N-(3,3-difluorocyclobutyl)benzamide ?
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C21H15Cl4F3N2O2
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