We have the GMP, HACCP, OU KOSHER1123 and ISO2010 certificate as attached to guarantee our high quality Sodium Acid PyrophosphateMolecular Formula:Na2H2P2O7Product Code:7758-16-9 Storage Conditions: HG 2928-1999Usage:Used as rapid ferment agent, quality improver in food industry. Applied to acid component of synthetic swelling agent, such as, bread, cake. Builted with other phosphates can be ...