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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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