Item

Standard

Analysis data

Appearance

White crystalline powder

Conforms

Solubility (1.0g/20ml H₂O)

Clear   Colorless

Conforms

Specific rotation(a)D20

(C=1 , H2O)

+7.5o to +8.5o

+7.9o

Assay

98.0-102.0%

99.2%

Melting Point (oC)

200oC to 210 oC

Conforms

Heavy metals(Pb)

Not more than 20ppm

10ppm

Chloride(C1)

Not more than 0.02%

0.012%

Iron(Fe)

Not more than 10ppm

8ppm

Arsenic(As2O3)

Not more than 4ppm

<4ppm

Moisture

Not more than 1.0%

0.6%

Residue on ignition

Not more than 0.2%

0.07%

Total plate count

Not more than 1,000cfu/g

Conforms

Yeast and mold

Not more than 100cfu/g

Conforms

PH

5.0-6.0

5.4

Conclusion

The product conforms to the standard