ChEBI: L-ascorbate is the L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants. It has a role as a human metabolite, a Daphnia magna metabolite and a cofactor. It is an ascorbate and a vitamin C. It is a conjugate base of a L-ascorbic acid.