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82159-09-9 C15H13NO3S2 Epalrestat
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Describtion:
Epalrestat is the second aldose reductase inhibitor to be introduced worldwide and the first to be launched in Japan. The compound is indicated for the treatment of diabetic neuropathy. It is also being investigated for diabetic retinopathy and nephropathy.
Epalrestat is a non-competitive inhibitor of aldose reductase, which reversibly inhibits the conversion of glucose into aldose reductase of sorbitol in polyol metabolism related to the pathogenesis of diabetic complications. Significantly improve the patient's symptoms and neurological dysfunction, improve its motor nerve conduction speed and autonomic nerve function.
Usage:
An aldose reductase inhibitor. It is used in treatment of diabetic neuropathy.
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 |
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