4-Chloro-3-mercapto-5-(trifluoromethyl)pyridine
2-Chloro-6-mercapto-3-(trifluoromethyl)pyridine
2-Chloro-4-mercapto-6-(trifluoromethyl)pyridine
6-Chloro-2-iodo-3-(trifluoromethyl)pyridine
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