L-Tyrosine  CAS NO：60-18-4

Chemical Name	L-Tyrosine
Molecular Structure
Molecular Formula	C9H11NO3
Molecular Weight	181.19
Characteristics	White styli form crystals with bitterness,soluble in dilute acids or base
Packing	25㎏/drum，25㎏/carton
Quality  Standard	AJI92/USP28/EP5/FCCIV
Specification
Specific rotation[a]D20°	-11.3°～-12.1°
State of solution	≥95.0%
Heavy metals(Pb)	≤10PPm
Residue on ignition	≤0.1%
Iron(Fe)	≤10PPm
Loss on drying	≤0.02%
Other amino acids	Conforms
Arsenic(As2O3)	≤1PPm
Chloride(CI)	≤0.02%
Ammonium(NH4)	≤0.02%
Sulfate(SO4)	≤0.02%
Assay	99.0～100.5%
PH	5.0～6.5