D-Pantothenic acid sodium (Standard) is the standard substance of D-Pantothenic acid sodium, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. D-Pantothenic acid sodium (vitamin B5 sodium) , the sodium salt of D-pantothenate, is a derivative of vitamin B5 which is an an essential nutrient and plays important roles in the oxidation of fats and carbohydrates and certain amino acids.