D-Ribose 5-phosphate disodium salt is a salt form of D-Ribose 5-phosphate, which an intermediate and end product of the oxidative branch and the nonoxidative branch of the Pentose Phosphate Pathway, respectively.A reagent used in synthesis of nucleotides and nucleic acids. D-Ribose 5-phosphate disodium salt is a salt form of D-Ribose 5-phosphate, which an intermediate and end product of the oxidative branch and the nonoxidative branch of the Pentose Phosphate Pathway, respectively. A reagent used in synthesis of nucleotides and nucleic acids.