Cefdinir Color: white to light yellow CASNo :91832-40-5 MW: 395.41 Molecular formula: C14H13N5O5S2

Cefdinir

Description                                     White to pale yellow crystalline powder

Identity                                           Conforms the test

Absorbance                                    570~610

Specific Rotation                            -58°~ -66°

Crystallinity                                   Conforms the test

pH                                                2.5~4.5

Water Content                               Not more than 2.0%

Heavy Metals                            Not more than0.0010%

Related Substances             

E-isomer                                    Not more than0.8%

Total Impurities                           Not more than3.0%                        

Residue of ignition                         Not more than 0.2%

Assay                                          Contains C14H13N5O5S2 not less than 94.0% (Calculated on anhydrous substance)

Microbic Limitation                        Quantity of the Mycetes is not more than80/g 

Cefdinir