Benserazide HCL Pharma Grade EP Stsandard
CAS# 14919-77-8
Application: Pharmaceutical raw materials / Intermediates.
Used for Parkinson's disease, Parkinson's syndrome, as a decarboxylase inhibitor.
| Item | Specification | Results | |
| Description | A white or yellowish-white or orange-white, crystalline powder,hygroscopic | Passed | |
| Water | Max 1.0% | 0.60% | |
| Heavy metals | Max 10 ppm | Passed | |
| Sulphated ash | Max 0.1% | 0.02% | |
| Optical rotation | (-0.05～+0.05) | 0.00 | |
| Contain | (98.5～101.0%) | 99.60% | |
| Related substances | Impurity A≤0.5% | 0.35% | |
| Single impurity≤ 0.5% | 0.30% | ||
| Total impurity≤ 1.0% | 0.50% | ||
| pH | (4.0～5.0) | 4.5 | |
| Appearance of solution | No more intensely colored than reference solution BY6 | Passed | |