Tetrahydrofuran

Tetrahydrofuran (THF) is a heterocyclic organic compound with the molecular formula C4H8O. It belongs to ethers and is a completely hydrogenated product of aromatic compound furan. It is a colorless, water-miscible, organic liquid with a small viscosity at normal temperature and pressure. The chemical formula of this cyclic ether can be written as (CH2)4O. Because of its long liquid range, it is a commonly used medium-polar aprotic solvent.