您的位置：首页 > 产品中心 > 56-89-3， L-CYSTINE
L-CYSTINE
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 |
| 4058218 | 25 G | 572 | |||
| 4058218 | 100 G | 676 | |||
| 4058218 | 1 KG | 4810 | |||
| 4058218 | 10 KG | 26670 |
产品别名
56-89-3
L-CYSTINE
Cys
基本信息
| Empirical Formula【经验(实验)分子式】 | C6H12N2O4S2 |
| Molecular weight | 240.30 |
| MDL number | MFCD00064228 |
| EC Index Number【EC索引号】 | 200-296-3 |
| Analysis Note【分析说明】 | Assay (bromatometric, calculated on dried substance): ≥ 99.0 % Identity (IR-spectrum): passes test Appearance: white to almost white, fine-crystalline powder Appearance of solution (0.2 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): -220.0 to - 225.0 Chloride (Cl): ≤ 0.02 % Sulfate (SO₄): ≤ 0.05 % 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 % Zn (Zinc): ≤ 0.0005 % NH₄ (Ammonium): ≤ 0.01 % Foreign amino acids: ≤ 0.3 % Other ninhydrine positive substances: ≤ 0.3 % Loss on drying (105 °C; 3 h): ≤ 0.3 % |
产品性质
| Quality Level【质量水平】 | 100 |
| form【形式】 | solid |
| mp | 261-262 ℃ (decomposition) |
| solubility【溶解性】 | insoluble 0.19 g/L |
| density | 1.677 g/cm3 at 20 ℃ |
| bulk density【堆积密度】 | 300 kg/m3 |
| storage temp.【储存温度】 | 2-30℃ |
| InChI | 1S/C6H12N2O4S2/c7-3(5(9)10)1-13-14-2-4(8)6(11)12/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12)/t3-,4-/m0/s1 |
| InChI key | LEVWYRKDKASIDU-IMJSIDKUSA-N |
安全信息
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 1 |
