CAS NO: 59-92-7
Specification: BP/USP
| Product Name | Levodopa |
| Quality Standard | BP/USP |
| Testing Items | Critrion |
| Appearance | White of slightly creamy crystalline powder |
| Identification | Positive |
| PH | 4.5-7.0 |
| Limpidity | Meets USP |
| Specific Rotation | -160ºto -167º |
| Related substances | Meets |
| Heavy Metals | ≤0.002% |
| Loss on drying | ≤0.50% |
| Sulphated ash | ≤0.10% |
| Assay | 99.0% to 100.5% |