Items

Specification

Characteristics

A white to pale yellow power or flaky crystals; Hygroscopic

Solubility 

Very soluble in Acetonitrile and Chloroform,

Soluble in water and practically insoluble in Ether

Identification  

I.R

UV

PH 

3.5-5.0  

Appearance of solution  

Clear to yellow standard ¡í7

Methyl benzenesulfonate

Not more than10ppm

Toluene

Not more than 0.2%   

Related substances

Total impurities

Impurity  F

Any other secondary impurity

Not more than 7.0%

Not more than 3.0%

Not more than 2.0% 

Isomer ratio

Cis-Cis

Cis-Trans

Trans- Trans

56.0-60.0%

34.5-37.5%

5.0%-6.5%

Loss on drying 

Not more than 3.0% 

Sulphated ash

Not more than 0.2% 

Assay    

97.0-103.0%