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L-Tryptophan
产品价格查看更多规格...
| 产品编号 | 包装单位 | 单价(元) | 国内现货 | 国外库存 | 询价单 |
| 4058990 | 10 G | 466 | |||
| 4058990 | 100 G | 1590 | |||
| 4058990 | 500 G | 5880 | |||
| 4058990 | 10 KG | 56780 |
产品别名
73-22-3
L-Tryptophan
TRP
基本信息
| Empirical Formula【经验(实验)分子式】 | C11H12N2O2 |
| Molecular weight | 204.23 |
| MDL number | MFCD00064340 |
| EC Index Number【EC索引号】 | 200-795-6 |
| Analysis Note【分析说明】 | Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 % Identity (IR-spectrum): passes test Identity (specific rotation): passes test Spec. rotation (α 20/D, 10 g/l, water, calc. on dried substance): -30.0 to -33.0 Appearance: white to almost white, crystalline or amorphous powder Appearance of solution (10 g/l, Hydrochloric acid 1 mol/l): clear and colorless Chloride (Cl): ≤ 200 ppm Sulfate (SO₄): ≤ 300 ppm Fe (Iron): ≤ 20 ppm Ninhydrin-positive substances (LC)(any ninhydrin-positive impurity): ≤ 0.2 % Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 % Ninhydrin-positive substances (LC)(total impurities): ≤ 0.5 % Loss on drying (105 °C; 3 h): ≤ 0.3 % |
产品性质
| Quality Level【质量水平】 | 100 |
| form【形式】 | solid |
| potency【效能】 | 16000 mg/kg LD50, oral (Rat) |
| pH【pH值(酸碱度)】 | 5.5-7.0 (20 ℃, 10 g/L in H2O) |
| mp | 290 ℃ (decomposition) |
| solubility【溶解性】 | 10 g/L |
| bulk density【堆积密度】 | 400 kg/m3 |
| storage temp.【储存温度】 | 2-30℃ |
| InChI | 1S/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2-1-3-8(7)10/h1-4,6,9,13H,5,12H2,(H,14,15) |
| InChI key | QIVBCDIJIAJPQS-UHFFFAOYSA-N |
安全信息
| Storage Class Code【储存分类代码】 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
