Chemical Name: R-(+)- Alpha Lipoic Acid
CAS No.: 1200-22-2
Molecular weight: 206.33
Appearance: Yellow crystal powder
Assay:98%min
| Item | Standard | Result |
| Appearance | Light yellow powder | Confirms |
| Identification | The retention time of the 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 | Confirms |
| Specific optical rotation | -1.0°~+1.0° | 0.6° |
| Melting point | 60-62°C | 61°C |
| Loss on drying | 0.2% max. | 0.19% |
| Bulk density | ≥0.60 g/ml | Confirms |
| Polymer content | 2% max. | Confirms |
| 6-8-epitrithiooctanoic acid | 0.2% max. | Non detectable |
| Heavy metals | ≤10ppm | Confirms |
| Chloride | ≤0.07% | Confirms |
| Limit of polymer content | ≤2.0% | Confirms |
| Residual of Cyclohexane | ≤500ppm | Confirms |
| Residual of Ethyl Acetate | ≤250ppm | Confirms |
| Residual of Toluene | ≤20ppm | Confirms |
| Microbiological data | ||
| Total aerobic count | Not more than 1000cfu/g | Confirms |
| Yeast & Mold | Not more than 100cfu/g | Confirms |
| E. Coli Salmonella Staphylococcus | Negative Negative Negative | Confirms Confirms Confirms |
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