Ferric Pyrophosphate occurs as a tan or yellow-white powder.With a slight iron sheet odour.It is insoluble in water, but is soluble in mineral acids. CAS No. : 10058-44-3; Molecular Formula: Fe4(P2O7)3·xH2O; Molecular Weight: 745.22(anhydrous); Quality Standard: FCC/JEFCA; Product code: RC.01.01.192623 Features Ferric pyrophosphate is an iron replacement product. Free https://www.richen-nutritional.com/ferric-pyrophosphate-food-grade-for-iron-defiency-supplements-product/