Name:4-Acetamidophenol
Other Name:Paracetamol
CAS No:103-90-2
MF:C8H9NO2
Characters : White crystalline powder
The detailed specifications are as below:
| Character | White crystalline powder , sparingly soluble in water freely soluble in alcohol, very slightly soluble in ether and methylene chloride |
| Identification | A: Melting range 168-172°C |
| B.C.D.E Positive | |
| Related substance | Impurity J(chloroacetanilide)≤10ppm |
| Impurity K(4-aminophenol)≤50ppm | |
| Impurity F(4-nitrophenol)≤0.05% | |
| Any other impurity ≤ 0.05% | |
| Total of other impurity≤0.1% | |
| Chloride | ≤0.014% |
| Sulfate | ≤0.02% |
| Sulfide | Complies |
| Heavy metals | ≤0.001% |
| Free P-Aminophenol | ≤0.005% |
| Chloroacetanilide | ≤0.001% |
| Readily carbonizable substance | Complies |
| Residual solvent | Residual content of acetic acid ≤0.5% |
| Organic volatile impurities | Complies |
| Water | ≤0.5% |
| Residue on ignition | ≤0.1% |
| Assay | 99.0-101.0%(Dried substance) |