Items

Specification

Appearance 

White crystalline powder

Assay

98.0%-102.0%

Specific rotation(a)D20 (C=1 , H2O )

+7.7 to +8.5 Degree

Identification by IR

Authentic

Melting point

202.0~215.0℃

Solubility (1.0g/20ml H2O)

Clear Colorless

Chloride(C1)

≤ 0.02%

Loss on drying (%)

≤ 0.5%

Residue on ignition

≤ 0.2%

PH

5.0-6.0

Total Plate Count

<1000cfu/g

Mold And Yeasts

<100cfu/g

Total Coliforms

<3cfu/g

Salmonella

Absent

E. Coli

Absent

Heavy metals(as Pb )

≤10ppm

Arsenic(as As )

≤ 1ppm

Lead

≤3ppm

Mercury

≤ 0.1ppm

Cadmium

≤ 1ppm

Residual solvents

According to EP