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L-Valine
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 |
| 4119743 | 25 G | 466 | |||
| 4119743 | 100 G | 756 | |||
| 4119743 | 1 KG | 4680 |
产品别名
72-18-4
L-Valine
Val
基本信息
| Molecular weight | 117.15 | ||||||||||||||||||
| MDL number | MFCD00064220 | ||||||||||||||||||
| EC Index Number【EC索引号】 | 200-773-6 | ||||||||||||||||||
| General description【一般描述】 | for biochemistry | ||||||||||||||||||
| Application【应用】 | L-Valine for biochemistry. CAS 72-18-4, pH 5.5 - 6.5 (100 g/l, H₂O, 20 °C). | ||||||||||||||||||
| Analysis Note【分析说明】 | | Assay (perchloric acid titration) | ≥ 99.0 % | Identity (IR-spectrum) | passes test | Appearance | white, crystalline powder or colorless crystals | Appearance of solution (50 g/l; water) | clear and colorless | Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l) | +23.8 to +24.8 | Heavy metals (as Pb) | ≤ 0.001 % | NH₄ (Ammonium) | ≤ 0.01 % | Foreign amino acids | ≤ 0.5 % | Other ninhydrine positive substances | ≤ 0.1 % | |
产品性质
| Quality Level【质量水平】 | 100 |
| form【形式】 | solid |
| pH【pH值(酸碱度)】 | 5.5-6.5 (20 ℃, 100 g/L in H2O) |
| mp | 315 ℃ |
| solubility【溶解性】 | 85 g/L |
| density | 1.23 g/cm3 at 20 ℃ |
| bulk density【堆积密度】 | 400 kg/m3 |
| storage temp.【储存温度】 | 2-30℃ |
| InChI | 1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8) |
| InChI key | KZSNJWFQEVHDMF-UHFFFAOYSA-N |
安全信息
| Storage Class Code【储存分类代码】 | 13 - Non Combustible Solids |
| WGK | WGK 1 |
