| Specific rotation (°) | +9.5-+11.0 | +10.0 | | Heavy metals (ppm) | ≤10 | Conform | | PH | 5-6 | 5.6 | | Loss on drying (%) | ≤0.5 | 0.04 | | Residue on ignition (%) | ≤0.1 | 0.03 | | Fe (%) | ≤0.001 | Conform | | Arsenic (%) | ≤0.0001 | Conform | | Sulfate (%) | ≤0.02 | Conform | | Chloride (%) | ≤0.02 | Conform | | Ammonium salt (%) | ≤0.08 | Conform | | Cyclo-L-alanyl-l-glutamine(%) | ≤0.2 | 0.002 | | Cyclo-l-alanyl-l-glutamyl (%) | ≤0.04 | Not detected | Assay (on dried basis %) | | Specific rotation (°) | +9.5-+11.0 | +10.0 | | Heavy metals (ppm) | ≤10 | Conform | | PH | 5-6 | 5.6 | | Loss on drying (%) | ≤0.5 | 0.04 | | Residue on ignition (%) | ≤0.1 | 0.03 | | Fe (%) | ≤0.001 | Conform | | Arsenic (%) | ≤0.0001 | Conform | | Sulfate (%) | ≤0.02 | Conform | | Chloride (%) | ≤0.02 | Conform | | Ammonium salt (%) | ≤0.08 | Conform | | Cyclo-L-alanyl-l-glutamine(%) | ≤0.2 | 0.002 | | Cyclo-l-alanyl-l-glutamyl (%) | ≤0.04 | Not detected | ≥98.5 | | Specific rotation (°) | +9.5-+11.0 | +10.0 | | Heavy metals (ppm) | ≤10 | Conform | | PH | 5-6 | 5.6 | | Loss on drying (%) | ≤0.5 | 0.04 | | Residue on ignition (%) | ≤0.1 | 0.03 | | Fe (%) | ≤0.001 | Conform | | Arsenic (%) | ≤0.0001 | Conform | | Sulfate (%) | ≤0.02 | Conform | | Chloride (%) | ≤0.02 | Conform | | Ammonium salt (%) | ≤0.08 | Conform | | Cyclo-L-alanyl-l-glutamine(%) | ≤0.2 | 0.002 | | Cyclo-l-alanyl-l-glutamyl (%) | ≤0.04 | Not detected | 99.9 |