| 11. | The pyridine ligand replaced during the reaction is restored after its completion.
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| 12. | Pyridine is harmful if inhaled, swallowed or absorbed through the skin.
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| 13. | Pyridine might also have minor genotoxic, and clastogenic effects.
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| 14. | Like the related molecule pyridine and quinoline, acridine is mildly basic.
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| 15. | Typical examples of basic aromatic rings are pyridine or quinoline.
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| 16. | With pyridine as a base and solvent, refluxing conditions are required.
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| 17. | Examples include pyridine, phosphabenzene, arsabenzene, and pyrylium.
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| 18. | Bases such as pyridine can also be used to promote the reaction:
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| 19. | Copper hydride reversibly precipitates from pyridine solution, as an amorphous solid.
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| 20. | Pyridine itself is a relatively weak ligand in forming quantitative analysis of iron.
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