Index Name

Specifications

Appearance

A white crystal powder

Melting point

183 to 187degree

Specific rotation

-17.5 to -5.5 degree

Identification

Positive reaction

IR:similar with the referrence

Appearance of solution

Clear and colorless

Heavy metals

Max 10ppm

As

Max 1ppm

Loss on drying

Max 0.5%

Residue on ignition

Max 0.10%

Related substances

Total :max 2.0%

GSSG:max 1.5%

Assay

Min 98.0%