Payment: T/T, L/C Product Origin: China Shipping Port: Beijing/Shanghai/Hangzhou Order (MOQ): 25kg Lead Time: 3 working days Production capacity: 2000kg/month Storage condition: Stored in cool, dry place, room temperature. Package material: drum Package size: 25kg/drum Safety information: Not dangerous goods| Item | Specification |
| Appearance | White or slightly yellowish, crystalline powder or flakes. |
| Identification | Melting point: 99-102℃ |
| UV: The solution shows an absorption maximum at 232nm and 275nm. The specific absorption at the 232nm is 525 to 575. | |
| IR: The sample spectrum complies with that of the reference standard spectrum. | |
| Reaction of primary aromatic amines: The sample solution gives the reaction of primary aromatic amines. | |
| Appearance of solubility | The solution is not more than opalescent than reference suspension II.The solution is not more intensely coloured than reference solution GY3. |
| Related substances | Impurity A ≤0.1% Impurity B ≤0.1% Impurity C ≤0.1% Any other impurity ≤0.1% Total impurity ≤0.2% |
| Loss on drying | ≤0.5% |
| Sulphated ash | ≤0.1% |
| Assay | 98.5-101.0% on dried substance |