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L-Aspartic Acid
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 |
| 4059018 | 100 G | 525 | |||
| 4059018 | 1 KG | 2760 | |||
| 4059018 | 10 KG | 7500 |
产品别名
56-84-8
L-Aspartic Acid
L-α-Aminosuccinic acid, L-αlpha-Aminosuccinic acid, Asp
基本信息
| Empirical Formula【经验(实验)分子式】 | C4H7NO4 |
| Molecular weight | 133.10 |
| MDL number | MFCD00002616 |
| EC Index Number【EC索引号】 | 200-291-6 |
| Analysis Note【分析说明】 | Assay (alkalimetric, calculated on dried substance): ≥ 99.0 % Identity (IR-spectrum): passes test Appearance: white to almost white crystalline powder or colorless crystals Appearance of solution (0.5 mol/l, hydrochloric acid 1 mol/l): clear and colorless Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): +25.3 to +26.3 UV-Absorption (260 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l): ≤ 0.25 UV-Absorption (280 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l): ≤ 0.20 Chloride (Cl): ≤ 0.02 % Sulfate (SO₄): ≤ 0.01 % Heavy metals (as Pb): ≤ 0.001 % As (Arsenic): ≤ 0.0005 % Ca (Calcium): ≤ 0.001 % Co (Cobalt): ≤ 0.0005 % Fe (Iron): ≤ 0.0005 % K (Potassium): ≤ 0.0005 % Mg (Magnesium): ≤ 0.0005 % Na (Sodium): ≤ 0.005 % NH₄ (Ammonium): ≤ 0.01 % Zn (Zinc): ≤ 0.0005 % Foreign amino acids: ≤ 0.3 % Other ninhydrine positive substances: ≤ 0.1 % Loss on drying (105 °C; 3 h): ≤ 0.3 % |
产品性质
| Quality Level【质量水平】 | 100 |
| form【形式】 | solid |
| pH【pH值(酸碱度)】 | 2.5-3.5 (20 ℃, 4 g/L in H2O) |
| mp | 269-271 ℃ (decomposition) |
| solubility【溶解性】 | 4 g/L |
| bulk density【堆积密度】 | 430 kg/m3 |
| storage temp.【储存温度】 | 2-30℃ |
| InChI | 1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9) |
| InChI key | CKLJMWTZIZZHCS-UHFFFAOYSA-N |
安全信息
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 1 |
