L-tirosina

Appearance

White crystals or crystalline powder

conforms

Assay,( 55781702,on dried basis)

98.5%~101.5%

99.8 %

Speciific rotation

-9.8°~ -11.2°

-10.8°

Heavy metals (Pb)

≤15ppm

≤5ppm

Loss on drying

≤0.3 %

≤ 0.2%

Iron (Fe)

≤30ppm

≤10ppm

Residue on ignition

≤0.40 %

≤ 0.1%

Chloride(Cl)

≤0.04 %

<0.04%

Sulfate (SO4)

≤0.04%

<0.04%

Heavy metals

≤10 ppm

<10ppm

Chromatographic purity

Conforms

Conforms

Organic volatile impurities

Meets the requirements

Conforms

Conclusion

This product conforms to requirements of USP 26 standard.