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LC5897 L-Tryptophanfor biochemistry |
Order number | Packaging | Quantity | Price € |
AC32897 | Plastic bottle | 10 g | 17.91 |
AC32897 | Plastic bottle | 100 g | 82.80 |
AC32897 | Plastic bottle | 500 g | 378 |
AC32897 | Plastic drum | 10 kg | inquire |
Product information | |
Grade | Ph Eur,BP,USP |
Hill Formula | C11H12N2O2 |
HS Code | 2933 99 80 |
EC number | 200-795-6 |
Molar mass | 204.23 g/mol |
CAS number | 73-22-3 |
Chemical and physical data | |
Solubility | 10 g/l (20 °C) |
Melting point | 290 °C (decomposition) |
Molar mass | 204.23 g/mol |
Bulk density | 400 kg/m3 |
pH value | 5.5 – 7.0 (10 g/l, H2O, 20 °C) |
Safety information | |
RTECS | YN6130000 |
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. |
Toxicological data | |
LD 50 oral | LD50 rat 16000 mg/kg |
Specifications | |
Assay (perchloric acid titration, calculated on dried substance) | ≥ 99.0 % |
Identity (IR-spectrum) | passes test |
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) | +1.5° to +2.5° |
Appearance | white to almost white, crystalline or amorphous powder |
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) | ≤ 0.01 % |
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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