CAS No.: | 62-46-4 |
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Other Names: | Lipoic Acid, PGA |
Mf: | C8h14o2s2 |
Place of Origin: | China |
Purity: | 99% |
Model Number: | Frtd- Lipoic Acid |
Samples: |
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Customization: |
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Suppliers with verified business licenses
Product name
|
Alpha Lipoic Acid
|
Grade
|
Food grade
|
Appearance
|
Yellow crystalline powder
|
Test Method
|
HPLC
|
ITEMS
|
SPECIFICATION
|
METHOD
|
Appearance
|
Yellow powder
|
Organoleptic
|
Identification
|
Meets the requirements
|
HPLC
|
Melting point
|
60-62ºC
|
USP
|
Specific rotation
|
-1.0°to +1.0°
|
USP
|
Loss on drying
|
≤0.20%
|
USP
|
Residue on ignition
|
≤0.10%
|
USP
|
Heavy metals
|
≤10ppm
|
USP
|
Lead
|
≤3ppm
|
USP
|
Cadmium
|
≤1ppm
|
USP
|
Mercury
|
≤0.1ppm
|
USP
|
Chromatographic purity
|
||
Single impurity
|
≤0.10%
|
HPLC
|
Total impurities
|
≤2.0%
|
HPLC
|
Residual Solvent By GC
|
||
Cyclohexane
|
≤1000ppm
|
GC
|
Ethyl acetate
|
≤250ppm
|
GC
|
Toluene
|
≤20ppm
|
GC
|
Microbiology
|
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Total Plate Counts
|
≤1000cfu/g
|
USP
|
Moulds and Yeasts
|
≤100cfu/g
|
USP
|
E.Coli and Salmonella
|
Absence/g
|
USP
|
Staphylococcus aureus
|
Absence/g
|
USP
|
Particle size
|
100% through 20 mesh
|
USP
|
Assay
|
98.5%-101.0%
|
HPLC
|
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