CERTIFICATE OF ANALYSIS
L-TRYPTOPHAN
BATCH NO: 200510052
MANUFACTURING DATE: 29 November 2005
EXPIRY DATE: 29 November 2008
| ITEM | SPECIFICATION | RESULT |
| Description | White to yellowish crystals or crystalline powderr | White to yellowish crystalline powder |
| Specific rotation | -29,4 - -32,8 | - 31,5 |
| Chloride | Not more than 0,05% | Less than 0,05% |
| Sulfate | Not more than 0,03 % | Less than 0,03% |
| Heavy metals | Not more than 0,0015 % | Less than 0,0015% |
| Iron | Not more than 0,003 % | Less than 0,003% |
| Loss on drying | Not more than 0,3 % | 0,10% |
| Residue on ignition | Not more than 0,1 % | 0,10% |
| Ovi | Conforms | Conforms |
| PH | 5,5 - 7,0 | 5,8 |
| Other amino acids | Not more than 0,5% | Less than 0,5% |
| Assay | 98,5 - 101,5 % | 99,60% |
Conclusion: Conforms to AJI97.
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