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| LC2001 L-Cystine for biochemistry |
| Order number | Packaging | Quantity | Price € |
| AC29001 | Plastic bottle | 25 g | 16.11 |
| AC29001 | Plastic bottle | 100 g | 29.03 |
| AC29001 | Plastic bottle | 1 kg | 240.30 |
| AC29001 | Plastic drum | 10 kg | inquire |
| Product information | |
| Hill Formula | C6H12N2O4S2 |
| HS Code | 2930 90 13 |
| EC number | 200-296-3 |
| Molar mass | 240.29 g/mol |
| CAS number | 56-89-3 |
| Chemical and physical data | |
| Ignition temperature | 400 °C |
| Solubility | (20 °C) insoluble |
| Melting point | 261 – 262 °C (decomposition) |
| Molar mass | 240.29 g/mol |
| Density | 1.677 g/cm3 (20 °C) |
| Bulk density | 300 kg/m3 |
| pH value | >1 (H2O, 20 °C) |
| Safety information | |
| RTECS | HA2690000 |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | NWG not water endangering |
| Specifications | |
| Assay (perchloric acid titration, calculated on dried substance) | ≥ 99.0 % |
| Identity (IR-spectrum) | passes test |
| Appearance | white to almost white, fine powder |
| Appearance of solution (0.2 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) | -220.0° to – 225.0° |
| 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 % |
| Zn (Zinc) | ≤ 0.0005 % |
| NH4 (Ammonium) | ≤ 0.01 % |
| Foreign amino acids | ≤ 0.3 % |
| Other ninhydrine positive substances | ≤ 0.1 % |
| Loss on drying (105 °C; 3 h) | ≤ 0.3 % |
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