This polyol, also known as (S,S)-(+)-2,3-Butylene Glycol, presents as a colorless to slightly pale yellow liquid. For best results, keep container tightly closed and in a cool, dark and well-ventilated place. Store under inert gas and protect from moisture, as this substance is hygroscopic. (S,S)-(+)-2,3-Butanediol is combustible in liquid form and incompatible with oxidizing agents.