2-Chloro-3,5-difluoro-4-(difluoromethyl)pyridine
3-Chloro-4,5-difluoro-2-(difluoromethyl)pyridine
2-Chloro-3,4-difluoro-5-(difluoromethyl)pyridine
3-Chloro-2,6-difluoro-5-(difluoromethyl)pyridine
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