This alkyl diamine, also known as dodecamethylenediamine, presents as a white to almost white crystalline powder. It is known to be soluble in ethanol. Store in a cool and dark place, under inert gas and at ambient temperatures. This substance is air sensitive. 1,12-Diaminododecane is incompatible with oxidizing agents and is harmful if swallowed. It causes skin irritation, serious eye irritation, and may cause an allergic skin reaction.