Glycolic acid (hydroacetic acid or hydroxyacetic acid); chemical formula C2H4O3 (also written as HOCH2CO2H), is the smallest α-hydroxy acid (AHA). This colorless, odorless, and hygroscopic crystalline solid is highly soluble in water. It is used in various skin-care products. Glycolic acid is found in some sugar-crops. A glycolate is a salt or ester of glycolic acid.
Acetic acid, hydroxy-
Appearance & Physical State
Light yellow to amber liquid
Stable. Incompatible with bases, oxidizing agents and reducing agents.