| 
 Product Name  | 
 Acetaminophen  | 
 Other Name  | 
Paracetamol | 
| 
 CAS No.  | 
 103-90-2  | 
 Appearance  | 
 White powder  | 
| 
 MF  | 
 C8H9NO2  | 
 MW  | 
 151.16  | 
| 
 Specification  | 
 98%  | 
 Testing Method  | 
 HPLC  | 
| Tests | Standards | Results | 
| Appearance | White or almost white ,crystalline powder. | White,crystalline powder. | 
| Identification | A:IR absorption | Complies | 
| B:UV absorption | Complies | |
| C:TLC | Complies | |
| Melting point | 168~172°C | 169.0~170.9°C | 
| Water | Not more than0.5% | 0.08% | 
| Related substance | ImpurityJ(chloroacetanilide)not more than 10 ppm | 2ppm | 
| Impurity K(4-aminophenolly)not more than 50 ppm | 15 ppm | |
| Impurity F(4-nitrophenolly)not more than 0.05% | Not detected | |
| any other impurity not more than 0.05% | 0.01% | |
| Total of other impurities not more than 0.1% | 0.02% | |
| Residue on ignition | Not more than 0.1% | 0.05% | 
| Chloride | Not more than 0.014% | Less than 0.014% | 
| Sulfate | Not more than 0.02% | Less than 0.02% | 
| Sulfide | Conforms | Conforms | 
| Heavy metals | Not more than 0.001% | Less than 0.001% | 
| Free p-aminophenol | Not more than 0.005% | Less than 0.005% | 
| Limit of P-chloroacetanilide | Not more than 0.001% | Less than 0.001% | 
| Readily carbonizable substances | Conforms | Conforms | 
| Residual solvents | Residual content of acetic acid is limited by the test of loss on dryingnot more than0.5% | 0.08% | 
| Assay(anhydrous basis) | 99.0~101.0% | 99.6% | 
| Conclusion: Complies with USP34/ BP2011 | ||