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pyridine (C5H5N)


pyridine
(A) Pyridine (azine), and (B) pyridoxine, one of three naturally-occurring forms of vitamin B6.
A colorless heterocyclic aromatic base with an unpleasant smell, found in bone oil and coal tar. It is produced from acetaldehyde (ethanal) and ammonia. Pyridine is used as a solvent and to denature grain alcohol (ethanol). Important derivatives are pyridoxine and niacin (see vitamin B complex).


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