Cefditoren pivoxil CAS NO.117467-28-4

Appearance：A light yellowish white to light yellowcrystalline powder Identification ：Meets the requirements Optical rotation： -45°…

 Appearance：A light yellowish white to light yellow crystalline powder

Identification ：Meets the requirements 

Optical rotation： -45°~ -52°

Water ：≤ 1.5% 

Residue on ignition： ≤ 0.2% 

Heavy metals ：≤ 10ppm 

Organic impurities：Impurity 1(RRT≈ 0.32): ≤ 0.20%

                    Impurity 2(RRT≈ 0.82): ≤ 1.00%

                    Impurity 3(RRT≈ 0.89): ≤ 0.30%

                    Impurity 4(RRT≈ 1.08): ≤ 1.50%

                    Impurity 5(RRT≈ 1.24): ≤ 0.20%

                    Impurity 6(RRT≈ 1.34): ≤ 1.00%

                    Impurity 7(RRT≈ 1.42): ≤ 0.30%

                    Impurity 8(RRT≈ 1.78): ≤ 0.20%

                    Impurity 9(RRT≈ 1.92): ≤ 1.00%

                    Impurity 10(RRT≈ 1.96): ≤ 1.00%

Highest unknown impurities: ≤ 0.1%

Total impurities: ≤5.0% 

Assay(on anhydrous basis): 944~1005μg/mg