Cefdinir

CAS number: 91832-40-5

Molecular formula: C14H13N5O5S2

molecular weight: 395.41400

Chemical structure:

Product nameCefdinir
Shelf life2 years
Test itemsEnterprise specificationTest resultsConclusion
CharacterSlight yellow to yellow crystalline powder, with slight smellySlight yellow crystalline powder, with slight smellyConform
Identification

1. In the chromatogram of the assay, the retention time of the principal peak in the chromatogram obtained with the test solution should correspond to that of the principal peak in the chromatogram obtained with reference solution.

2. The IR absorption spectrum of the substance to be examined should correspond to that of the reference

spectrum(No.l 122).

1. In the chromatogram of the assay, the retention time of the principal peak in the chromatogram obtained with the test solution corresponds to that of the principal peak in the chromatogram obtained with reference solution.

2. The IR absorption spectrum of the substance to be examined corresponds to that of the reference spectrum(No.l 122).

Conform
Specific rotation-58一-66°-62°Conform
Absorption coefficient571一-610°583
Conform
CrystallinityIt gives phenomenon of birefringence and extinction direction.It gives phenomenon of birefringence and extinction direction.Conform
pH2.5 4.53.4Conform
WaterNo more than 2.0%1.1%Conform
Conclusion:The test results of substance examined conform to the Specification of Cefdinir