CAS NO: 747-36-4
Specification: BP/USP
| Product Name | Hydroxy Chloroquine Sulfate |
| Quality Standard | BP/USP |
| Testing Items | Critrion |
| Appearance | White or off white crystalline powder |
| Identification | Positive |
| Acidity PH(1% W/V) | 3.5-5.5 |
| Clarity of solution | Not more than slightly turbid |
| Color of solution | Not more than slightly yellow |
| Lead | 20ppm Max |
| Chloride | 350ppm Max |
| Related substances | One spot ≤1.0% Any other spot ≤ 0.5% |
| Organic volatile Impurities | Meets |
| Loss on drying | ≤2.0% |
| Sulphated Ash | ≤0.2% |
| Assay | 98.5%-100.5% |
| Melting Point | 231℃ |