Pyridoxine, also known as Vitamin B6, is a water-soluble B vitamin that assists in the balancing of sodium and potassium as well as promotes red blood cell production. This certified reference solution is suitable for use as a starting material in preparation of linearity standards, calibrators, and controls for a variety of testing applications from diagnostic testing of pyridoxine deficiency by HPLC to quality control testing of pyridoxine-based dietary supplements, fortified foods, or pharmaceutical preparations.