Dibasic esters are used as solvents, additives, lubricants, plasticizers, polymers, and spin finishes. Dibasic esters are processed dimethyl esters of succinic, adipic, and glutaric acids. They are environmentally friendly products since they are non-flammable, non-corrosive, and biodegrade quickly.

PTBP is a type of high purity alkylphenol manufactured from phenol and isobutylene. It is used as a molecular weight modifier for polycarbonate resin and as a raw material in synthetic resins such as phenolic resins.