Proline and its derivatives are often used as asymmetric catalysts in organic reactions, as the CBS reduction and proline catalysed aldol condensation.

Minoxidil sulphate is the active metabolite required to exert the vasodilatory and hair growing effects of minoxidil.

Levomefolate sodium (L-5-MTHF sodium) is a dietary supplement that can be used to study megaloblastic anemia and neurological disorders.