SPECIFICATIONS

Appearance

Slightly yellow crystal powder Almost odorless

Identification

The retention time of the peak for alpha lipoic acid in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the standard preparation,as obtained in the Assay¡£

Solubility(In NaOH)

Clear and pale yellow

Melting Point

60~62ºC

Heavy Metals

10ppm max

Loss on drying

0.20% max

Residue on Ignition

0.10% max

Chloride

0.07% max

Specific rotation

-1.0°to +1.0°

Limit of polymer content

2.0% max