Dibasic ester or DBE is an ester of a dicarboxylic acid.  Depending on the application, the alcohol may be methanol or higher molecular weight monoalcohols.
Mixtures of different methyl dibasic esters are commercially produced from short-chain acids such as adipic acid, glutaric acid, and succinic acid. They are non-flammable, readily biodegradable, non-corrosive, and have a mild, fruity odour.
Dibasic esters of phthalates, adipates, and azelates with C8 - C10 alcohols have found commercial use as lubricants, spin finishes, and additives.