Cefpiromesulfateisafourthgenerationcephalosporinantibiotic.
CASNumber
98753-19-6
MolecularFormula
C22H22N6O5S2H2SO4
MolecularWeight
612.66
MechanismofAction
Likeβ-lactams,cephalosporinsinterferewithPBP(penicillinbindingprotein)activityinvolvedinthefinalphaseofpeptidoglycansynthesis.PBP’sareenzymeswhichcatalyzeapentaglycinecrosslinkbetweenalanineandlysineresiduesprovidingadditionalstrengthtothecellwall.Withoutapentaglycinecrosslink,theintegrityofthecellwallisseverelycompromisedandultimatelyleadstocelllysisanddeath.Resistancetocephalosporinsiscommonlyduetocellscontainingplasmidencodedβ-lactamases.
StorageConditions
-20°C
TariffCode
2941.90.3000
Spectrum
Cefpiromeisabroadspectrumantibiotictargetingawidevarietyofgrampositiveandgramnegativebacteria.ManyBacteroides,Enterococci,andHaemophilusspecieshavedevelopedresistancetocefpirome.
Form
Powder
Appearance
Whiteoralmostwhitecrystallinepowder
Source
Synthetic
WaterContent(KarlFisher)
≤4.0%
pH
(2%inH2O):1.3-2.5
Assay
≥99.0%(ondriedbasis)
ResidueOnIgnition
≤0.1%
HeavyMetals
≤20ppm
Impurities
SingleImpurity:≤0.2%
TotalImpurities:≤1.0%