Chemical Name

N-Acetyl-L-Tyrosine

Molecular Structure

Molecular Formula

C11H13NO4

Molecular Weight

223.23

Characteristics

White crystalling powder

Packing

25㎏/drum，25㎏/carton

Quality  Standard

AJI92/USP28/EP5/FCCIV

Specification                                                                     

Specific rotation[a]_D^20°          

+46.5 to +49        

State of solution

≥96.0%

Chloride(CL)

Ammonium(NH₄)

Sulfate(SO₄)

≤0.020%

≤0.02%

≤ 0.020%

Iron(Fe)

≤30PPm

Heavy metals(Pb)                           

≤10PPm  

Arsenic(As2O3)        

≤2PPm              

Loss on drying

≤0.5%

Residue on ignition

≤0.1%

Assay                                  

99.0～101.0%             

tyrosine

≤1.0%

PH                    

2.0 to 3.0