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L-Tyrosine
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 |
| 4058219 | 25 G | 592 | |||
| 4058219 | 100 G | 805 | |||
| 4058219 | 1 KG | 3730 | |||
| 4058219 | 10 KG | 21310 |
产品别名
60-18-4
L-Tyrosine
4-Hydroxyphenylalanine, Tyr
基本信息
| Empirical Formula【经验(实验)分子式】 | C9H11NO3 |
| Molecular weight | 181.19 |
| MDL number | MFCD00002606 |
| EC Index Number【EC索引号】 | 200-460-4 |
| Analysis Note【分析说明】 | Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 % Identity (IR-spectrum): passes test Appearance: white, crystalline powder or colorless crystals Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance): -11.0 to -12.3 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): ≤ 0.01 % NH₄ (Ammonium): ≤ 0.01 % Zn (Zinc): ≤ 0.0005 % L-Phenylalanine: ≤ 0.5 % other foreign amino acids: ≤ 0.2 % 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 |
| potency【效能】 | >5110 mg/kg LD50, oral (Rat) |
| pH【pH值(酸碱度)】 | 6.5 (0.1 g/L in H2O) |
| mp | 297-298 ℃ (decomposition) |
| solubility【溶解性】 | 0.38 g/L |
| density | 1.46 g/cm3 at 20 ℃ |
| bulk density【堆积密度】 | 300 kg/m3 |
| storage temp.【储存温度】 | 2-30℃ |
| InChI | 1S/C9H11NO3/c10-8(9(12)13)5-6-1-3-7(11)4-2-6/h1-4,8,11H,5,10H2,(H,12,13) |
| InChI key | OUYCCCASQSFEME-UHFFFAOYSA-N |
安全信息
| Storage Class Code【储存分类代码】 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
