Ceftizoximesodiumisathirdgenerationcephalosporinantibioticandisconsideredverysolubleinaqueoussolution.
CASNumber
68401-82-1
MolecularFormula
C13H12N5NaO5S2
MolecularWeight
405.38
MechanismofAction
Likeβ-lactams,cephalosporinsinterferewithPBP(penicillinbindingprotein)activityinvolvedinthefinalphaseofpeptidoglycansynthesis.PBP’sareenzymeswhichcatalyzeapentaglycinecrosslinkbetweenalanineandlysineresiduesprovidingadditionalstrengthtothecellwall.Withoutapentaglycinecrosslink,theintegrityofthecellwallisseverelycompromisedandultimatelyleadstocelllysisanddeath.Resistancetocephalosporinsiscommonlyduetocellscontainingplasmidencodedβ-lactamases;however,ceftizoximeisstableinthepresenceoftheseinactivatingenzymes.
StorageConditions
-20°C
TariffCode
2941.90.5000
Spectrum
Ceftizoximeisabroadspectrumantibiotictargetingawidevarietyofgrampositiveandgramnegativebacteria.
Form
Powder
Appearance
Whiteorpaleyellowcrystallinepowder
Source
Synthetic
WaterContent(KarlFisher)
≤8.5%
pH
6.0-8.0
OpticalRotation
+125°to+145°
Assay
(OnDriedBasis):850-995µg/mg
Impurities
IndividualImpurity:≤0.5%
TotalImpurities:≤1.0%
CeftizoximePolymer:≤0.1%