131 results about "4-Methylpyridine" patented technology

4-Methylpyridine is the organic compound with the formula CH₃C₅H₄N. It is one of the three isomers of methylpyridine. This pungent liquid is a building block for the synthesis of other heterocyclic compounds. Its conjugate acid, the 4-methylpyridinium ion, has a pKₐ of 5.98, about 0.7 units above that of pyridine itself.