L-Isoleucine
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Product Name: L-Isoleucine
Batch No.: LA******
Quality: USP24
Shelf Life: 2years
| Tests | Limits | Test results |
| Description | White crystals or crystalline powder | Crystalline powder |
| Identification （ IR ） | Concordant with the reference spectrum | Concordant with the reference spectrum |
| Assay | 98.5%~101.5 % | 99. 4 % |
| Specific rotation | 38.9 ° ～ 41.8 ° | 40. 6 ° |
| PH | 5.5~7.0 | 6. 4 |
| Loss on drying | ≤0.3% | 0.2 6 % |
| Residue on ignition | ≤0.3% | 0.1 4 % |
| Chloride(Cl) | ≤0.05% | ＜ 0.05% |
| Sulfate(SO 4 ) | ≤0.03% | ＜ 0.03% |
| Iron(Fe) | ≤30ppm | ＜ 30ppm |
| Heavy metals(Pb) | ≤15ppm | ＜ 15ppm |
| Organic Volatile Impurities | Meets the requirements | Meets the requirements |
Product Name: L-Isoleucine
Batch No.: LA******
Quality: USP37
Shelf Life: 2years
| Tests | Limits | Test results |
| Description | White crystals or crystalline powder | crystalline powder |
| Identification （ IR ） | Concordant with the reference spectrum | Concordant with the reference spectrum |
| Assay （ Titration ） | 98.5~101.5% | 99 .1 % |
| Specific rotation | 38.9~ 41.8º | 39. 3 º |
| PH | 5.5~7.0 | 6. 5 |
| Loss on drying | ≤0.3% | 0.2 1 % |
| Residue on ignition | ≤0.3% | 0.1 2 % |
| Chloride(Cl) | ≤0.05% | ＜ 0.05% |
| Sulfate(SO 4 ) | ≤0.03% | ＜ 0.03% |
| Iron(Fe) | ≤30ppm | ＜ 30ppm |
| Heavy metals(Pb) | ≤15ppm | ＜ 15ppm |
| Arsenic | ≤1ppm | ＜ 1ppm |
| Chromatography | ≤0.5% | ＜ 0.5% |
| Organic Volatile Impurities | Meets the requirements | Meets the requirements |
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