产品说明
分析说明
Assay (perchloric acid titration, calculated on dried substance): 99.0 - 101.0 %
Identity (IR-spectrum): passes test
Identity (specific rotation): passes test
Appearance: white to almost white crystalline powder or colorless crystals
Appearance of solution (20 g/l, CO₂-free water): clear and colorless
Spec. rotation (α 20/D, 100 g/l, hydrochloric acid 3 mol/l, calc. on dried substance): +33.7 to +36.0
Chloride (Cl): ≤ 200 ppm
Sulfate (SO₄): ≤ 200 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): ≤ 50 ppm
Pb (Lead): ≤ 10 ppm
Zn (Zinc): ≤ 5 ppm
Ninhydrin-positive substances (LC)(Aspartic acid): ≤ 0.5 %
Ninhydrin-positive substances (LC)(any other ninhydrin-positive impurity): ≤ 0.3 %
Ninhydrin-positive substances (LC) (ammonium (570 nm)): ≤ 0.02 %
Ninhydrin-positive substances (LC)(total impurities): ≤ 0.8 %
Loss on drying (130 °C, 3 h): 10.5 - 12.5 %
基本信息
| 经验(实验)分子式 | C4H8N2O3 · xH2O |
| 分子量 | 132.12 (anhydrous basis) |
| MDL编号 | MFCD00151038 |
| EC索引号 | 200-735-9 |
产品性质
| 质量水平 | 100 |
| pH值(酸碱度) | 4.0-5.5 (20 ℃, 20 g/L in H2O) |
| mp | 215-217 ℃ (decomposes) |
| 溶解性 | 22 g/L |
| 堆积密度 | 530 kg/m3 |
| 储存温度 | 2-30℃ |
| InChI | 1S/C4H8N2O3.H2O/c5-2(4(8)9)1-3(6)7;/h2H,1,5H2,(H2,6,7)(H,8,9);1H2/t2-;/m0./s1 |
| InChI key | RBMGJIZCEWRQES-DKWTVANSSA-N |
安全信息
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
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