半岛bd体育手机客户端 说明
一般描述
for biochemistry
应用
L-Valine for biochemistry. CAS 72-18-4, pH 5.5 - 6.5 (100 g/l, H?O, 20 °C).
分析说明
Assay (perchloric acid titration)≥ 99.0 %Identity (IR-spectrum)passes testAppearancewhite, crystalline powder or colorless crystalsAppearance of solution (50 g/l; water)clear and colorlessSpec. rotation (α 20/D, 50?g/l, hydrochloric acid 1?mol/l)+23.8 to +24.8Heavy metals (as Pb)≤ 0.001 %NH? (Ammonium)≤ 0.01 %Foreign amino acids≤ 0.5 %Other ninhydrine positive substances≤ 0.1 %
基本信息
分子量 | 117.15 |
MDL编号 | MFCD00064220 |
EC索引号 | 200-773-6 |
半岛bd体育手机客户端 性质
质量水平 | 100 |
形式 | solid |
pH值(酸碱度) | 5.5-6.5 (20 ℃, 100 g/L in H2O) |
mp | 315 ℃ |
溶解性 | 85 g/L |
密度 | 1.23 g/cm3at 20 ℃ |
堆积密度 | 400 kg/m3 |
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
储存分类代码 | 13 - Non Combustible Solids |
WGK | WGK 1 |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
Sigma-Aldrich