CAS number: 82159-09-9
Molecular formula: C15H13NO3S2
molecular weight: 319.4
Chemical structure:
Items | Specifications | Results | |||||
Appearance | yellow to orange, crystals or crystalline powder, discoloration and decomposition under light | Complies | |||||
Solubility | soluble in N, N-dimethylformamide,slightly soluble in methanol and in ethanol (99.5), and practically insoluble in water. | Complies | |||||
Melting Point | 222~227℃ | 222.5~225.0℃ | |||||
Identification | UV complies | Complies | |||||
IR complies | Complies | ||||||
Related substance | Single impurity | ≤0.20% | 0.04% | ||||
Total impurities | ≤1.0% | 0.06% | |||||
Residual solvent | Alcohol | ≤0.5% | 0.06% | ||||
Tetrahydrofuran | ≤0.072% | 0.04% | |||||
Acetic acid | ≤0.5% | No detected | |||||
Loss on drying | ≤0.2% | 0.04% | |||||
Residue on ignition | ≤0.1% | 0.00% | |||||
Heavy metals | ≤10ppm | Complies | |||||
Particle size | D50: 8~10μm | 9.4μm | |||||
D90: 17~23μm | 19.8μm | ||||||
Assay on dried | 98.0%~101.0% | 100.50% | |||||
Conclusion | Complies with the requirement of JP17 | ||||||
Containers and storage | Containers—Tight containers | Storage—Light-resistant |