C5H4ClN

C5H4ClN is the molecular formula for several chemical compounds, all possessing five carbon atoms, four hydrogen atoms, one chlorine atom, and one nitrogen atom. The arrangement of these atoms dictates the specific isomer and its properties. One prominent compound with this formula is 2-chloropyridine. 2-Chloropyridine is a heterocyclic aromatic organic compound. It is a colorless liquid with a pungent odor. It is soluble in water and most organic solvents. 2-Chloropyridine is used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and dyes.

Another isomer is 3-chloropyridine. Like 2-chloropyridine, it is a liquid with a similar solubility profile. 3-Chloropyridine also serves as a building block in organic synthesis. The position of the chlorine atom on the pyridine ring influences its reactivity and applications. A third possibility is 4-chloropyridine. This isomer shares the same elemental composition but differs in the chlorine atom's placement. Like its counterparts, 4-chloropyridine is a versatile chemical intermediate. The precise properties and hazards associated with C5H4ClN depend on which specific isomer is being considered. Safety precautions should always be taken when handling any of these compounds, as they can be irritants and may have other toxicological effects.