| ITEM | STANDARD |
| Appearance | White crystalline powder |
| Specific rotation | -9.5~11.0℃ |
| Residue on Ignition % | =<0.5 |
| Heavy Metals (ppm) | =<10 |
| Arsenic(ppm) | =<1 |
| Solubility | Clarification |
| PH(1%water solution | 3.0-4.5 |
| Water content % | =<0.5 |
| L-Carnitine % | 68.5±1.0 |
| L-tartaric acid % | 31.8±1.0 |
| Assay % | >=98 |