Ceftibutenisathirdgenerationcephalosporinantibiotic. Ceftibutenisfreelysolubleinaqueoussolution(70.5mg/mL).
CASNumber
97519-39-6
MolecularFormula
C15H14N4O6S2
MolecularWeight
410.42g/mol
MechanismofAction
Likeβ-lactams,cephalosporinsinterferewithPBP(penicillinbindingprotein)activityinvolvedinthefinalphaseofpeptidoglycansynthesis.PBP’sareenzymeswhichcatalyzeapentaglycinecrosslinkbetweenalanineandlysineresiduesprovidingadditionalstrengthtothecellwall.Withoutapentaglycinecrosslink,theintegrityofthecellwallisseverelycompromisedandultimatelyleadstocelllysisanddeath.Resistancetocephalosporinsiscommonlyduetocellscontainingplasmidencodedβ-lactamases.
StorageConditions
-20°C
TariffCode
2941.90.5000
Spectrum
Ceftibutenisabroadspectrumantibiotictargetingawidevarietyofgrampositiveandgramnegativebacteria.
Form
Powder
Appearance
Whitetolightyellowcrystallinepowder
Source
Synthetic
WaterContent(KarlFisher)
8.0-13.0%
OpticalRotation
+135°-+155°
Assay
90.0-102.0%
ResidueOnIgnition
≤0.1%
HeavyMetals
≤10ppm
Impurities
SingleImpurity:≤1.0%
TotalImpurities:≤2.0%