2-Chloro-3-methyl-4-(perchlorophenyl)pyridine
2-Chloro-6-methyl-5-nitro-3-(perchlorophenyl)pyridine
2-Chloro-6-methyl-3-nitro-5-(perchlorophenyl)pyridine
2-Chloro-4-methyl-3-nitro-5-(perchlorophenyl)pyridine
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