D-Glucose, 6-(dihydrogen phosphate), sodium salt (1:2)

Formula : C6-H13-O9-P.2Na
CAS : 3671-99-6 

An ester of glucose with phosphoric acid, made in the course of glucose metabolism by mammalian and other cells. It is a normal constituent of resting muscle and probably is in constant equilibrium with fructose-6-phosphate. (Stedman, 26th ed)