Complaint
| ITEM | SPECIFICATION |
| Appearance | Slightly yellow crystal powder |
| Solubility(In NaOH) | Clear and pale yellow |
| Melting Point | 60~62ºC |
| Specific rotation | -1.0°to +1.0° |
| Loss on drying | ≤0.2% |
| Residue on Ignition | ≤0.1% |
| Loose density | / |
| Particle size | 100% pass 40mesh |
| Heavy metals | ≤10ppm |
| Pb | ≤3ppm |
| Cd | ≤1ppm |
| Hg | ≤0.1ppm |
| Limit of polymer content | ≤2.0% |
| Residual of C yclohexane | ≤1000ppm |
| Residual of E thyl Acetate | ≤250ppm |
| Residual of T oluene | ≤20ppm |
| Assay of Alpha Lipoic Acid | 99%~101% |
| Single unknown impurity | ≤0.1% |
| Total impurities | ≤2.0% |
| Total aerobes counts | ≤1000 CFU/g |
| Moulds and Yeasts | ≤100 CFU/g |
| E.coli/Salmonella | Absence/g |
| Staphylococcus aureate | Absence/g |
| Package | 25kg/Fiber drum |
| Storage condition | Store in a well closed place with constant low temperature and no direct sun light |
| Shelf life | Two years when properly stored |
