2-Hydroxy-5-nitro-3-(3,4,5-trichlorophenyl)pyridine
2-Hydroxy-5-nitro-3-(2,4,6-trichlorophenyl)pyridine
2-Hydroxy-5-nitro-3-(2,3,4-trichlorophenyl)pyridine
2-Hydroxy-3-nitro-5-(3,4,5-trichlorophenyl)pyridine
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