Molecular formula: BiK2C6H7O7and8226;H2O Molecular weight: 495.98 Charactor:This product is white powder,has salty taste and easily absorb moisture.Easilydissolve in the water,slightly dissolve in the ethanol. Usage:Use for chronic gastritis and relief of stomachache,stomach burning sensationand sour regurgitation caused by overmuch gastric acid;as well gastric ulcer,duodenalulcer etc. Quality standard(CP)