TESTS

SPECIFICATIONS

Characters

White or almost white crystalline powder

Solubility

Practically soluble in water, very soluble in ethylene chloride, freely soluble in acetone. soluble in methanol sparingly soluble in anhydrous ethanol .

Identification

Requirement  standard

Melting Range

About 210℃

Specific optical rotation

+152°~+157°

Related substance by HPLC

Total Impurities Max0.5%≤0.2%

 Loss on drying

Max 0.5%

Sulphated ash

Max.0.1%

Assay(UV)

97.0%-103.0%