This amide, also known as L-2-Aminobutanamide hydrochloride, presents as a white to almost white crystalline powder. For optimal storage and safety, keep container tightly closed. Store in a cool and dark place, ideally under inert gas and at ambient temperatures. This substance is air sensitive. (S)-2-Aminobutyramide Hydrochloride is incompatible with oxidizing agents. This chemical causes skin irritation and serious eye irritation.