| Specification | |
| Assay | 98.5 to 101.0% |
| Transmittance | Min 98.0% |
| Chloride | Max 0.02 % |
| pH | 5.7 to 6.7 |
| Arsenic | Max 1 ppm |
| Loss on drying | Max 0.20 % |
| Specific Rotation | +14.3 to +15.2 ̊ |
| Other Amino Acids | Conforms |
| Salt (Ammonium) | Max 0.20 % |
| Iron (Fe) | Max 10 ppm |
| Sulphate (So4) | Max 0.20 % |
