Description

White crystals or crystalline powder

conforms

Identification(IR)

concordant with the reference  spectrum

conforms

assay

98.5~101.5%

99.2%

PH

5.4~6.0

5.87

Specific rotation[a]D20

-33.2°~-35.2°

 -34.19°

Heavy metals(Pb)

≤20ppm

<20ppm

Arsenic(As)

≤3ppm

<3ppm

Pb

≤5ppm

<5ppm

Loss on drying

≤0.20%

0.15%

Residue on ignition

≤0.10%

0.01%

Conclusion

Passed test according to the Standard of FCCVI.