L-Ornithine monohydrochloride

for biochemistry

L-Ornithine monohydrochloride for biochemistry. CAS 3184-13-2, molar mass 168.62 g/mol.

Assay (perchloric acid titration, calculated on dried substance)99.0 - 102.0 %Identity (IR-spectrum)passes testAppearancewhite, crystalline powder or colorless crystalsAppearance of solution (25 g/l; CO₂-free water)clear and not more intense in color than reference solution B9Spec. rotation (α 20/D, 40 g/l, hydrochloric acid 6 mol/l, calc. on dried substance)+23,0 to +25,0Sulfate (SO₄)≤ 200 ppmHeavy metals (as Pb)≤ 10 ppmAs (Arsenic)≤ 5 ppmCa (Calcium)≤ 100 ppmCo (Cobalt)≤ 5 ppmFe (Iron)≤ 5 ppmK (Potassium)≤ 20 ppmMg (Magnesium)≤ 10 ppmNa (Sodium)≤ 50 ppmZn (Zinc)≤ 5 ppmNinhydrin-positive substances (LC)(any ninhydrin-positive impurity)≤ 0.2 %Ninhydrin-positive substances (LC) (ammonium (570 nm))≤ 0.02 %Ninhydrin-positive substances (LC)(total impurities)≤ 1.0 %Loss on drying (105 °C)≤ 0.5 %Other ninhydrine positive substances≤ 0.1 %Loss on drying (105 °C; 3 h)≤ 0.3 %