Lactic acid

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Chemical structure

Lactic acid (C3H6O3 or CH3CHOHCOOH or HC3H5O3)[1] is an organic compound which is acidic. Also know as 2-hydroxypropanoic or milk acid,[2] this substance is produced by the breakdown of glucose inside a living creature or by some kinds of bacteria.[2] It is an odorless, colorless or yellow syrupy liquid.[3] It is corrosive to metals and body tissue. Small, diluted amounts are typically considered safe to eat, and it is used in the production of cultured dairy products and as a food preservative.[2] However, excessive amounts in the human body can be harmful.[3][4] Lactic acid is also used in some industrial processes to make chemicals.