Items

Standards

Results

Appearance

white crystals or powder

Positive

Solubility

Easily soluble in water, insoluble in ether

Complies

Appearance of solution

Dissolve0.5 gin 10 ml of water,

and the solution should be clear

Complies

Identification

IR and TLC

Complies

MS and NMR

Should Comply

Complies

M.P.

165℃  ~  170℃

168℃ ~170℃

Specific rotation

(C=10 inH2O)

+157°  ~  +160°

+158.8°

Loss weight on

Dryness

Max.0.5%

0.2%

Residue on ignition

Max. 0.5%

0.1%

TLC

Should be one spot

one spot

Heavy metal

Max.20ppm

Complies

Beta-Isomer

Max. 0.5%

Complies

Assay

Min. 99%

99.6%

Total Bacteria Count

≤1000cfu/g

Complies

Yeast, Mold & Fungi

≤100cfu/g

Complies

Salmonella

Negative

Complies

E. Coli

Negative

Complies

Staphylococcus

Negative

Complies