Changshu Fushilai Medicine & Chemical Co.,Ltd.

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Alpha Lipoic Acid

Formula: C₈H₁₄O₂S₂
Molecular Weight: 206.33

ITEMS	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	60~62℃
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
Related Substance By HPLC
6.8-Epitrithlooctanolic acid(EPI)	0.10% max
Single Impurity	0.10% max
Total Imurities	0.50% max
Residual Slovene By GC
Cyclohexane	500ppm max
Ethyl Acetate	250ppm max
Toluene	20ppm max
Total aerobes counts	1000 CFU/g
Moulds and Yeasts	100 CFU/g
E.coli/Salmonella	Absence/g
Staphylococcus aureate	Absence/g
Particle Size	100% through 20 mesh 20% max. through 100 mesh
Bulk Density	≥0.60 g/ml
Assay	99%~101%