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7-Phenylacetamide-3-Hydroxy-3-cephem-4-carboxylic acid diphenylmethyl ester

Product Name: 7-Phenylacetamide-3-Hydroxy-3-cephem-4-carboxylic acid diphenylmethyl ester
CAS No.: 54639-48-4
Molecular formula: C28H24N2O5S
Molecular weight: 500.56
Structural formula:
Density 1.6 g/cm3 at 25 °C
Boiling point 715.5°C at 760 mmHg
Appearance White or off white powder
Intermediates of Ceftizoxime sodium
Analysis Specification
Appearance White or off white powder
Optical rotation +140°-+145°
Colour(420nm) ≤0.5AU
Related substance ≤0.5%
Method 1
Rn2.14
Rn2.28 ≤0.5%
Maximum single
Unk.impurity		 ≤0.1%
Method 2 ≤0.1%
BPA
TPE ≤0.1%
GENH ≤0.1%
Maximum single
Unk.impurity		 ≤0.1%
Total impuries ≤1.0%
Water ≤0.3%
Residual solvent
Toluene		 ≤3.0%
Assay ≥95%
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