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| LC1778 L-Cysteine hydrochloride monohydrate for biochemistry |
| Order number | Packaging | Quantity | Price € |
| AC28778 | Plastic bottle | 25 g | 14.94 |
| AC28778 | Plastic bottle | 100 g | 31.05 |
| AC28778 | Plastic bottle | 1 kg | 225.9 |
| AC28778 | Plastic drum | 10 kg | Inquire |
| Product information | |
| Hill Formula | C3H8ClNO2S * H2O |
| HS Code | 2930 90 16 |
| EC number | 200-157-7 |
| Molar mass | 175.64 g/mol |
| CAS number | 7048-04-6 |
| Chemical and physical data | |
| Solubility | 650 g/l (20 °C) |
| Melting point | 168 – 170 °C |
| Molar mass | 175.64 g/mol |
| Bulk density | 780 kg/m3 |
| pH value | 0.8 – 1.2 (100 g/l, H2O, 20 °C) |
| Safety information | |
| RTECS | HA2285000 |
| 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. |
| Specifications | |
| Assay (iodometric, calc. on dried substance) | ≥ 99.0 % |
| Identity (IR-spectrum) | passes test |
| Appearance | White, crystalline powder or colorless crystals. |
| Appearance of solution (1 mol/l, water) | Clear and colorless. |
| Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) | +6.3° to +7.3° |
| UV-Absorption (280 nm; 1 mol/l; 1 cm; water) | ≤ 0.1 |
| 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) | ≤ 0.02 % |
| NH4 (Ammonium) | ≤ 0.01 % |
| Zn (Zinc) | ≤ 0.0005 % |
| Foreign amino acids | ≤ 0.3 % |
| Other ninhydrine positive substances | ≤ 0.1 % |
| Loss on drying (Vacuum < 0.7 kPa, P2O5, 24 h) | 9.0 – 11.5 % |
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