Cyclohexane

Cyclohexane is a saturated cyclic hydrocarbon with the chemical formula C6H12, consisting of a ring of six carbon atoms each bonded to two hydrogen atoms. It is a nonpolar, colorless, flammable liquid with a mild odor reminiscent of cleaning products.​

Structurally, cyclohexane adopts several conformations to minimize strain, the most stable being the chair conformation, where bond angles are close to the ideal tetrahedral angle of 109.5°, reducing angle and torsional strain. Other forms include the boat and twist-boat conformations, which are less stable.​

Cyclohexane has a molecular weight of 84.16 g/mol, a density of 0.7739 g/mL, melting point around 6.5°C, and boiling point approximately 80.7°C. It is immiscible in water but soluble in many organic solvents and is widely used as a nonpolar solvent and intermediate in chemical industries, such as nylon production.​