3-Chloro-2-nitro-4-(trifluoromethoxy)pyridine-6-acetic acid
3-Chloro-2-nitro-4-(trifluoromethoxy)pyridine-5-acetic acid
2-Chloro-6-nitro-3-(trifluoromethoxy)pyridine-4-acetic acid
2-Chloro-4-nitro-6-(trifluoromethoxy)pyridine-3-acetic acid
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