Product: N-Acetyl-L-Tyrosine
Appearance: White crystals or crystalline powder
Specific Rotation: +46.5° To +49.0°
State of solution: Not less than 96.0%
Chloride (Cl): Not more than 0.020%
Ammonium (NH4): Not more than 0.02%
Sulfate (SO4): Not more than 0.020%
Iron (Fe): Not more than 30ppm
Heavy Metals (Pb): Not more than 10ppm
Aresenic (As2O3): Not more than 2ppm
Loss on drying: Not more than 0.5%
Residue on ignition:  Not more than 0.1%
Assay: 99.0% to 101.0%
Tyrosine: Not more than 1.0%
pH: 2.0 to 3.0
N-Acetyl-l-tyrosine: non-animal