Names: L-Aspartate Calcium CAS No.: 21059-46-1 EINECS No.: 244-185-8 Purity: 99% Grade Standard: Medicine Grade Appearance: white powder MF: C4H5CaNO4 Specific Rotation[a]D20o +19.0 to 20.0o Loss on Drying 0.5% Max Ammonium (NH4) 0.02%Max Sulfate (SO4) 0.02% Max Chloride 0.02% Max Arsenic (As2O3) 1ppm Max Heavy Metals (Pb) 10ppm Max Iron(Fe) 20ppm Max PH 6.0 to 7.5 Assay (As Ca) 10.8 to 12.0%