L-Proline (Ph. Eur., USP) pure, pharma grade

L-Proline (Ph. Eur., USP) pure, pharma grade
Content: 100 GRM
Physical Description:
Solid
• All amino acids from AppliChem are of non-animal origin!
Specification: Assay (titr., calc. on dried subst.): 98.5 - 101.0 %
a25°C/D; 4 %, H2O: -84.3° - -86.3°
Appearance of solution: passes test
Identity: passes test
Heavy metals (as Pb):?max. 0.0015 %
Sulfated ash:?max. 0.1 %
Loss on drying (3 h; 105°C):?max. 0.4 %
a20°C/D; 4 %, H2O, calc. on dried subst.: -84.0° - -86.0°
Ammonium:?max. 0.02 %
Chloride:?max. 0.02 %
Sulfate:?max. 0.03 %
Fe:?max. 0.001 %
Ninhydrin positive substances (HPLC):
Each individual impurity:?max. 0.2 %
Total impurities:?max. 0.5 %
Ninhydrin positive substances (TLC):
Each individual impurity:?max. 0.5 %
Total impurities:?max. 2 %