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Alpha Lipoic Acid Cas 1077-28-7

Appearance: yellow crystal powder
Assay: 99%
Packing: 25kg/drum
Sample: Avaiable

Quick Details

Chemical Name: DL-Thioctic acid

Other Name: Alpha lipoic acid; α-Lipoic Acid; DL-alpha-Lipoic Acid

CAS No.: 1077-28-7

Molecular Fomula: C8H14O2S2

Chemical Structure:DL-Thioctic acid Structure

Molecular weight: 206.33

Appearance: yellow crystal powder, no foreign substance, no obvious odor

Assay: 99%

Typical Properties

Items Specifications Method
Appearance Slightly yellow crystal powder Organoleptic
Identification Meets the requirements HPLC
Melting Point 60~62℃ USP
Specific Rotation -1.0˚ to + 1.0˚ USP
Loss on drying ≤0.20% USP
Residue on Ignition ≤0.10% USP
Heavy Metals ≤10 ppm USP
Lead ≤3 ppm USP
Cadmium ≤1 ppm USP
Mercury ≤0.1 ppm USP
Chromatographic purity
Single Impurity ≤0.10% HPLC
Total Impurities ≤2.0% HPLC
Limit of Polymer content Conforms TLC
Residual Solvent By GC
Cyclohexane ≤1000 ppm GC
Ethyl Acetate ≤250 ppm GC
Toluol ≤20 ppm GC
Total plate Counts ≤1000 cfu/g USP
Moulds and Yeasts ≤100 cfu/g USP
E.Coli / Salmonella Absence/g USP
Staphylococcus Aureate Absence/g USP
Particle Size 100% through 40 mesh USP
Loose Bulk Density
Assay 99%~101% HPLC
Conclusion: Conformed USP41 STANDARD


DL-Thioctic acid is widely used for diabetic neuropathy complication medicine and dietary supplement.

Packaging and Shipping


Delivery:by sea/by air


This product must be stored in a cool, dry and sealed container or tank and seal away from light. Storage warehouse must be regularly clearance, ventilate and inspection, be low temperature and dry.