Add: Building C,No.888,Huanhu West 2nd Road,Lingang Special Area,China (Shanghai) Pilot Free Trade Zone.
Tel: +86 191 1634 4846 Website: www.treering.com.cn
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TREERING GROUP LIMITED Add: Building C,No.888,Huanhu West 2nd Road,Lingang Special Area,China (Shanghai) Pilot Free Trade Zone. Tel: +86 191 1634 4846 Website: www.treering.com.cn |
| SUPPLIER: | TREERING GROUP LIMITED |
| PRODUCT NAME: | L-Methionine |
| SPECIFICATION: | USP |
| ITEM | Unin | STANDARD |
|---|---|---|
| Appearance | - | White crystals or crystalline powder |
| Assay | % | 98.5~101.5 |
| Identification | - | Infrared absorption |
| Optical rotation | - | +22.4°~+24.7° |
| PH value (10mg/ml in water) | 10mg/ml | 5.6~6.1 |
| Loss on drying (100-105℃)% | % | ≤0.3 |
| Residue on ignition | % | ≤0.4 |
| Sulfate | % | ≤0.03 |
| Chloride | % | ≤0.05 |
| Iron，% | % | ≤0.003 |
| Heavy metals | % | ≤0.0015 |
| Chromatographic purity | % | Individual impurity ≤0.5 Total impurities ≤2.0 |
| Organic volatile impurities | - | Meets the requirements |
| Arsenic | ppm | ≤1 |