Tetrakis(4-pyridylphenyl)ethylene
2,3-Dimethyl-5-(trifluoromethoxy)pyridine-4-sulfonamide
4-Bromo-3-fluoro-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine
2-Chloro-3,5-dimethoxy-4-(trifluoromethoxy)pyridine
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