Description
Alpha lipoic acid
Alpha lipoic acid 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:
Molecular weight: 206.33
Appearance: yellow crystal powder, no foreign substance, no obvious odor
Assay: 99%
Alpha lipoic acid Typical Properties
Items
Specifications
Results
Method
Appearance
Slightly yellow crystal powder
Conforms
Organoleptic
Identification
Meets the requirements
Conforms
HPLC
Melting Point
60～62℃
61.8℃
USP
Specific Rotation
－1.0˚ to + 1.0˚
0˚
USP
Loss on drying
≤0.20%
0.12%
USP
Residue on Ignition
≤0.10%
0.02%
USP
Heavy Metals
≤10 ppm
＜10 ppm
USP
Lead
≤3 ppm
0.02 ppm
USP
Cadmium
≤1 ppm
0.2 ppm
USP
Mercury
≤0.1 ppm
0.01ppm
USP
Chromatographic purity
Single Impurity
≤0.10%
0.04%
HPLC
Total Impurities
≤2.0%
0.08%
HPLC
Limit of Polymer content
Conforms
Conforms
TLC
Residual Solvent By GC
Cyclohexane
≤1000 ppm
754 ppm
GC
Ethyl Acetate
≤250 ppm
61 ppm
GC
Toluol
≤20 ppm
Not Detectable
GC
Total plate Counts
≤1000 cfu/g
＜10 cfu/g
USP
Moulds and Yeasts
≤100 cfu/g
＜10 cfu/g
USP
E.Coli / Salmonella
Absence/g
Not Detectable
USP
Staphylococcus Aureate
Absence/g
Not Detectable
USP
Particle Size
100% through 40 mesh
Conforms
USP
Loose Bulk Density
0.36g/ml
USP
Assay
99%~101%
99.1%
HPLC
Conclusion: Conformed USP41 STANDARD
Alpha lipoic acid Usage
DL-Thioctic acid is widely used for diabetic neuropathy complication medicine and dietary supplement.
Alpha lipoic acid Packaging and Shipping
Packing:25kg/drum
Delivery:by sea/by air
Alpha lipoic acid Storage
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.
