Unspecific protease inhibitor highly similar to EDTA. Inhibition results from chelating of calcium and magnesium ions leading to their removal from the surrounding medium. However, affinity to calcium2+ is much higher than that to magnesium2+. The inhibitory effect can be compensated by an excess of calcium2+ or magnesium2+. pKa calcium (pH 7): approx. 6.9
Appearance | white, crystalline powder |
Assay (titr.) | ≥99,0 % |
pH value (saturated sol.) | 2,6-3,0 |
Loss on drying | ≤2,0 % |
Iron (Fe) | ≤0,001 % |
Heavy metals | ≤0,001 % |