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LC2990 L-Histidine monohydrochloride monohydratefor biochemistry |
Order number | Packaging | Quantity | Price € |
AC29990 | Plastic bottle | 25 g | 18.45 |
AC29990 | Plastic bottle | 100 g | 38.475 |
AC29990 | Plastic bottle | 500 g | 171.90 |
AC29989 | Plastic drum | 10 kg | inquire |
Product information | |
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 |
Chemical and physical data | |
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) |
Safety information | |
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. |
Specifications | |
Assay (alcalimetric, calculated on anhydrous 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, 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 % |
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Loss on drying (105 °C; 3 h)