Lactic acid is a chemical compound that plays a role in various biochemical processes and was first isolated in 1780 by the Swedish chemist Carl Wilhelm Scheele. Lactic acid is a carboxylic acid with the chemical formula C2H4OHCOOH. It has a hydroxyl group adjacent to the carboxyl group, making it an alpha hydroxy acid (AHA). In solution, it can lose a proton from the carboxyl group, producing the lactate ion CH3CH(OH)COO−.
More at: Lactic acid
More at: lactic acid