Overview

Ascorbic acid (as-KOR-bik AS-id), or vitamin C, is one of the most important dietary vitamins for humans because it plays a crucial role in building collagen, the protein that serves as a support structure for the body. It is a water-soluble vitamin, which means that the body excretes any excess vitamin C in the urine and cannot store a surplus. For that reason, humans must consume vitamin C in their daily diets. Vitamin C is found in many fruits and vegetables and most kinds of fresh meat. Citrus fruits, such as oranges and lemons, are especially rich in the compound.

Key Facts

Other Names:

L-ascorbic acid; vitamin C

Formula:

C₆H₈O₆

Elements:

Carbon, hydrogen, oxygen

Compound Type:

Organic acid

State:

Solid

Molecular Weight:

176.12 g/mol

Melting Point:

191°C (376°F); decomposes

Boiling Point:

Not applicable

Solubility:

Soluble in water and alcohol; insoluble in ether, benzene...