sodium phosphate tribasic dodecahydrate

Sodium phosphate tribasic dodecahydrate is a small molecule inorganic salt used primarily as a pharmaceutical excipient and buffering agent. With the chemical formula Na3PO4·12H2O, it is employed in drug formulations to maintain a stable pH, which is critical for the stability, solubility, and efficacy of active pharmaceutical ingredients. Although it has been utilized in the pharmaceutical industry since 1921 and holds US Approved Rx status as an inactive ingredient, it is not typically used as a standalone therapeutic agent for specific diseases. It is also a common reagent in biochemical research and laboratory applications.

Other names

Trisodium phosphate dodecahydrateTSP dodecahydrateTrisodium orthophosphate dodecahydrateSodium phosphate tribasic