Description Tin(II) Pyrophosphate, 99+%, 100g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) White Appearance (Form) Powder Assay (Complexometric) 99+% ICP Analysis Confirms Sn component Iron (Fe) <0.01% Lead (Pb) <0.001% Arsenic (As) <0.0005% Sulfates (as SO4) <0.5% CAS: 15578-26-4 FORMULA: Sn2P2O7