1,6-Dioxecane-2,7-dione is a chemical compound classified as a lactone. It is formed as an impurity in the manufacture of polymer resins and biodegradable polyesters.Hanioka Y. Resin composition and resin molded article. US20160068677A1Takahashi E. Method for producing polyester. US20180022867A1Chen EY, Hong M, Tang X. Ring-opening polymerization methods and recyclable biorenewable polyesters. US20180118880A1 It is the cyclic dimer of GHB and has thus been sold as a recreational drug.

See also 1,2,3-Tris(4-hydroxybutyroyloxy)propane Aceburic acid Ethyl acetoxy butanoate gamma-Butyrolactone gamma-Hydroxybutyraldehyde

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