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LC245 L-Aspartic acidfor biochemistry |
| Order number | Packaging | Quantity | Price € |
| AC27245 | Plastic bottle | 100 g | 12.06 |
| AC27245 | Plastic bottle | 1 kg | 81.45 |
| AC27245 | Plastic drum | 10 kg | inquire |
| Product information | |
| Grade | Ph Eur,BP,USP |
| Synonyms | L-a-Aminosuccinic acid |
| Hill Formula | C4H7NO4 |
| HS Code | 2922 49 85 |
| EC number | 200-291-6 |
| Molar mass | 133.1 g/mol |
| CAS number | 56-84-8 |
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Chemical and physical data |
|
| Solubility | 4 g/l (20 °C) |
| Melting point | 269 – 271 °C (decomposition) |
| Molar mass | 133.1 g/mol |
| Bulk density | 430 kg/m3 |
| pH value | 2.5 – 3.5 (4 g/l, H2O, 20 °C) |
| Safety information | |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | NWG not 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. |
| Specifications | |
| Assay (alkalimetric, calculated on dried substance) | ≥ 99.0 % |
| Identity (IR-spectrum) | passes test |
| Appearance | white to almost white crystalline powder or colorless crystals |
| Appearance of solution (0.5 mol/l, hydrochloric acid 1 mol/l) | clear and colorless |
| Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) | +25.3° to +26.3° |
| UV-Absorption – 260 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l |
≤ 0.25 |
| – 280 nm, 0.5 mol/l, 1 cm, hydrochloric acid 1 mol/l | ≤ 0.20 |
| 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) | ≤ 0.005 % |
| NH4 (Ammonium) | ≤ 0.01 % |
| Zn (Zinc) | ≤ 0.0005 % |
| Foreign amino acids | ≤ 0.3 % |
| Other ninhydrine positive substances | ≤ 0.1 % |
| Loss on drying (105 °C; 3 h) | ≤ 0.3 % |
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