2,2-Dimethylsuccinic acid [2,2-dimethylbutanedioic acid] is an organic compound that belongs to the class of substituted dicarboxylic acids. Known for its application in various synthesis processes, it typically occurs as colorless crystals or a white powder. This compound's molecular structure consists of a butane backbone with two methyl groups attached at the second carbon position and carboxyl groups at the terminal carbons. With a molecular formula of C6H10O4, it exhibits properties such as a melting point of 210-212°C and is soluble in water, ethanol, and ether.