Morpholine is a synthetic organic liquid used mainly as an intermediate in the production of rubber chemicals and optical brighteners, as a corrosion inhibitor in steam condensate systems, as an ingredient in waxes and polishes and as a component of protective coatings on fresh fruits and vegetables.
Morpholine is also used as chiral organocatalysts, chiral auxiliaries, chiral templates in the synthesis of α-hydroxy acids and oxacycles in the laboratory.