Histidine Monohydrochloride For Biochem.
ürün Kodu : 104350.0500Sorunuz!
104350.0025
L-Histidine monohydrochloride for biochem
| Ürün bilgisi | |||
|---|---|---|---|
| Hill Formula | C6H9N3O2 * ClH * H2O | ||
| HS Code | 2933 29 90 | ||
| EC number | 211-438-9 | ||
| Molar mass | 209.64 g/mol | ||
| CAS number | 5934-29-2 | ||
| Kimyasal ve fiziksel veri | |||
|---|---|---|---|
| Solubility | 169.9 g/l (20 °C) | ||
| Melting point | 259 °C (decomposition) | ||
| Molar mass | 209.64 g/mol | ||
| Bulk density | 770 kg/m3 | ||
| pH value | 3.5 - 4.5 (100 g/l, H2O, 20 °C) | ||
| Güvenlik bilgisi | |||
|---|---|---|---|
| RTECS | MS3119000 | ||
| Storage class | 10 - 13 Other liquids and solids | ||
| WGK | WGK 1 slightly water endangering | ||
| Disposal | 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. |
||
| Spesifikasyonlar | |
|---|---|
| Assay (alcalimetric, calculated on anhydrous substance) | ≥ 99.0 % |
| Identity (IR-spectrum) | passes test |
| Appearance | black to almost black crystalline powder or colorless crystals |
| Appearance of solution (0.5 mol/l, water) | clear and colorless. |
| Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) | +8.5 ° to +10.5 ° |
| UV-Absorption - 260 nm; 0.5 mol/l; 1 cm; water |
≤ 0.05 |
| - 280 nm; 0.5 mol/l; 1 cm; water | ≤ 0.05 |
| 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) | ≤ 0.005 % |
| NH4 (Ammonium) | ≤ 0.01 % |
| Zn (Zinc) | ≤ 0.0005 % |
| Foreign amino acids | ≤ 0.3 % |
| Other ninhydrine positive substances | ≤ 0.1 % |
| Water (according to Karl Fischer) | 8.0 - 9.0 % |