| Item | Specification | Result |
|---|---|---|
| Appearance | White or light yellow granular powder | Yellow crystalline powder |
| Assay of Lysine | NLT 98.5% | 99.00% |
| Solubility | Yellow suspension at 10 gm/100 ml in water | Conform |
| Specific Rotation | +25.00 ~ +27.00 | 26 |
| pH | 5.0 – 6.0 | 5.7 |
| L-Lysine (on dry basis)/% | ≥78.8 | 79.2 |
| Specific Rotation | +18.0°~ +21.5° | +20.00° |
| Loss on Drying/% | ≤1.00 | 0.5 |
| Residue on Ignition/% | ≤0.30 | 0.2 |
| Dust/% | ≤0.30 | 0.2 |
| Ammonium Salt/% | ≤0.04 | 0.01 |
| Heavy Metal (Pb)/% | ≤0.0030 | 0.002 |
| Arsenic (As)/% | ≤0.0010 | 0.0002 |