Cefazedone sodium CAS NO.56187-47-4

appearance

white to yellowish white powder

identification

1. the infrared spectra of cefazedone sodium and cefazedone sodium rs exhibit similar intensities of absorption at the same wavenumbers.
2. the principle spots from the test solution and the standard solution show the same rf value.
3. it responds to the test(1) for sodium.

specific optical rotation

-3°~+4°

ph

4.5~6.5

specific absorbance

490~570

heavy metal

≤20ppm

water

≤2.0%

residue on ignition

12.0%~12.8%

residue solvents

dichloromethane:≤0.06%

n,n-dimethylformamide:≤0.088%

bacterial endotoxins

≤0.016eu/mg

sterility

meets the requirements when tested as directed for membrane filtration under test

assay(on dried basis)

≥86.5% of cefazedone c18h15cl2n5o5s3