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LC5896 L-Tryptophan

suitable for use as excipient

 

Order number Packaging Quantity Price €
AC32896 Plastic bottle 100 g inquire
AC32896 Plastic bottle 1 kg inquire
AC32896 Plastic drum 5 kg inquire

 

Product information
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) 98.5 – 101.0 %
Identity (IR-spectrum) passes test
Appearance white to almost white, crystalline or amorphous powder
Appearance of solution (10 g/l, Hydrochloric acid 1 mol/l) clear and not more intense in color than reference solution BY6
pH (10 g/l, CO2-free water) 5.5 – 7.0
Spec. rotation
– α 20/D, 10 g/l, water, calc. on dried substance
-30.0° to -33.0°
– α 25/D, 10 g/l, water, calc. on dried substance -29.4° to -32.8°
Chloride (Cl) ≤ 0.02 %
Sulfate (SO4) ≤ 0.03 %
Heavy metals (as Pb) ≤ 0.001 %
Fe (Iron) ≤ 0.002 %
NH4 (Ammonium) ≤ 0.02 %
Ninhydrin – positive substances (TLC) ≤ 0.5 %
Related substances (HPLC)
– Impurities before tryptophan peak
≤ 100 ppm
– Impurities behind tryptophan peak ≤ 300 ppm
– 1,1′-Ethylidenebistryptophan (Peak E) ≤ 10 ppm
Residual solvents (Ph. Eur./USP/ICH) class 3 (Propan-2-ol) ≤ 0.3 %
Other residual solvents (Ph. Eur./USP/ICH) excluded by manufacturing process
Organic volatile impurities (according to USP) conforms
Sulfated ash (600 °C) ≤ 0.1 %
Loss on drying (105 °C; 3 h) ≤ 0.3 %
Bacterial endotoxins ≤ 10 I.U./g

 

L-Tryptophan, Laboratory chemicals, Laboratory Chemicals manufacturer, Laboratory chemicals india, Laboratory Chemicals directory, elabmart