十二烷二酸是含有十二个碳原子的二羧酸，结构式HOOC(CH₂)₁₀COOH。

白色粉末状或片状结晶。水溶解度小。热稳定性好。毒性低。

Dodecanedioic acid informally referred to as DDDA is a dicarboxylic acid mainly used in antiseptics, top-grade coatings, painting materials, corrosion inhibitor, surfactant, and engineering plastics such as nylon 612.

Experimental work with Dodecanedioic acid in type 2 diabetic patients has demonstrated that IV infusion helps to maintain normal blood sugar and energy levels without increasing the blood glucose load in the process.