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L -组氨酸
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 |
| 4094081 | 25 G | 761 | |||
| 4094081 | 100 G | 1720 | |||
| 4094081 | 1 KG | 6430 | |||
| 4094081 | 10 KG | 32450 |
产品别名
71-00-1
NSC 137773
HIS
(S)-2-Amino-3-(4-imidazolyl)propionic acid
(S)-2-氨基-3-(4-咪唑基)丙酸
结构式
基本信息
| Empirical Formula【经验(实验)分子式】 | C6H9N3O2 |
| Molecular weight | 155.15 |
| Beilstein | 84088 |
| MDL number | MFCD00064315 |
| EC Index Number【EC索引号】 | 200-745-3 |
| Biochem/physiol Actions【生化/生理作用】 | 组胺的前体,经组氨酸脱羧酶作用可生成组胺。 |
| Analysis Note【分析说明】 | Assay (acidimetric, calculated on dried substance): 99.0 - 101.0 % Identity (IR-spectrum): passes test Appearance: white to almost white, fine-crystalline powder or colorless crystals Appearance of solution (50 g/l; water): clear and colorless Spec. rotation (α 20/D, 110 g/l, hydrochloric acid 120 g/l, calc. on dried substance): +11.4 to +12.4 Chloride (Cl): ≤ 200 ppm Sulfate (SO₄): ≤ 200 ppm Heavy metals (as Pb): ≤ 10 ppm As (Arsenic): ≤ 5 ppm Ca (Calcium): ≤ 10 ppm Co (Cobalt): ≤ 5 ppm Fe (Iron): ≤ 5 ppm K (Potassium): ≤ 5 ppm Mg (Magnesium): ≤ 5 ppm Na (Sodium): ≤ 100 ppm Zn (Zinc): ≤ 5 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): ≤ 0.2 % |
产品性质
| Quality Level【质量水平】 | 100 |
| form【形式】 | solid |
| potency【效能】 | >5110 mg/kg LD50, oral (Rat) |
| pH【pH值(酸碱度)】 | 7.7 (20 ℃, 10 g/L in H2O) |
| mp | 282 ℃ (dec.) (lit.) |
| solubility【溶解性】 | 38.2 g/L |
| bulk density【堆积密度】 | 430 kg/m3 |
| storage temp.【储存温度】 | 2-30℃ |
| SMILES string | N[C@@H](Cc1c[nH]cn1)C(O)=O |
| InChI | 1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1 |
| InChI key | HNDVDQJCIGZPNO-YFKPBYRVSA-N |
安全信息
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 1 |
