N- Acetyl -DL-tryptophan Manufacturer, Supplier, Exporter

Safety information
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.

Specifications
Assay (alkalimetric, calculated on dried substance)	99.0 - 101.0 %
Identity (IR-spectrum)	passes test
Appearance	white to almost white, crystalline powder or colorless crystals
Appearance of solution (10 g/l; sodium hydroxide solution 1 mol/l)	clear and not more intense in color than reference solution Y₇ or GY₇
Spec. rotation ( 20/D; 100 g/l; sodium hydroxide solution 1 mol/l)	-0.1 to +0.1
Heavy metals (as Pb)	0.001 %
Fe (Iron)	0.001 %
NH₄ (Ammonium)	0.02 %
Residual solvents (Ph. Eur./ICH)	excluded by manufacturing process
Related substances (HPLC) - largest single impurity	0.25 %
- Sum of all impurities	0.5 %
Sulfated ash (600 C)	0.1 %
Loss on drying (105 C)	0.5 %
Bacterial endotoxins	50 I.U./g
Residues of metal catalysts or metal reagents acc. to EMEA/CHMP/SWP/4446/2000 are not likely to be present.
Corresponds to Ph. Eur., BP

N- Acetyl -DL-tryptophan