5-Chloro-4-mercapto-2-(trifluoromethyl)pyridine
4-Chloro-5-mercapto-2-(trifluoromethyl)pyridine
2-Chloro-3-mercapto-4-(trifluoromethyl)pyridine
5-Chloro-3-iodo-2-(trifluoromethyl)pyridine
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