Dibutyl 4-(((Butoxymethyl)(propoxy)phosphoryl)oxy)butyl Phosphate is a byproduct in the synthesis of Dibutyl 4-Hydroxybutyl Phosphate (D429405), which is derived from 4-Tetrahydropyranyloxy-butan-1-ol (T295445), which is a useful building block. It is also a metabolite of Phosphoric Acid Tributyl Ester (P359445), which is used as a solvent in the solvent-detergent method for production of immunoglobulin for inactivation of viruses with lipid envelope on the model of duck hepatitis B virus. It is also used as a ligand in the extraction of lanthanide ions from solid and liquid materials by supercritical CO2.