31. Traces of pyridine can be found in cannabis also contain small amounts of pyridine. 32. Traces of pyridine can be found in cannabis also contain small amounts of pyridine . 33. Related molecules discovered in the meteorites include pyridine carboxylic acids and pyridine dicarboxylic acids. 34. Related molecules discovered in the meteorites include pyridine carboxylic acids and pyridine dicarboxylic acids. 35. Can be used to selectively fluorinate pyridine at the ortho position under mild conditions. 36. For heteroatom systems, such as pyridine , values of " h" 37. It is freely soluble in chloroform, benzene, pyridine , and carbon disulfide. 38. Like pyridine , 3-methylpyridine is a colorless liquid with a strong odor. 39. 2-Mercaptopyridine derivatives can also be generated from precursors lacking preformed pyridine rings. 40. The complex also releases tiny amounts of pyridine vapor which is a possible carcinogen.