Colour Reaction

 Positive reaction

Comparative Spectrum

 Retention time of the principal peak is identical with that of the comparative solution

Comparative spectrum

 Infrared rays absorption spectrum is identical with comparative spectrum

Clarify of solution and colour

 Be up to the standard

PH

 5.0-7.0

Related substances

 The area of total impurities' peak isn't more than the area of the comparative solution's principal peak

Loss on drying

 ≤0.5%

Residue on ignition

 ≤0.1%

Heavy Metals

 ≤20ppm

Assay (HPLC)

 98.0%-102.0%

Microbial Limit Tests

Conforms

Packing

25kgs or 20kgs/paper drum

Usage

Improve ideation and memory, used to cure memory and ideation regression caused by cerebral arteriosclerosis and cerebrovascular accidents