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LC5897 L-Tryptophan

for 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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