 1,5-Pentanediol is produced by hydrogenation of glutaric acid and its derivatives.It can also be prepared by hydrogenolysis of tetrahydrofurfuryl alcohol.A toy called "Bindeez" ("Aqua Dots" in North America) was recalled by the distributor in November 2007 because of the unauthorized substitution of 1,5-pentanediol with 1,4-butanediol.