Form
Powder
pH
6.5-8.5
Assay
Imipenem:Notlessthan400µg/mg
Cilastatin:Notlessthan400µg/mg
Imipenem/Cilastatin:0.95-1.05:1
LossonDrying
Notmorethan3.5%
Imipenemisasparinglysoluble(0.776mg/mL)β-lactamantibioticinthecarbapenemsubgroup.
TOKU-Eofferstwoformsofimipenem:imipenem(I001)andimipenemw/cilastatin(I005).Cilastatinisachemicalthatinhibitsthehumanenzymedehydropeptidase;anenzymecapableofdegrADIngimipenem.
74431-23-5;82009-34-5
C12H17N3O4S•H2OandC16H26N2O5S
317.36and358.45
β-lactamsinterferewithPBP(penicillinbindingprotein)activityinvolvedinthefinalphaseofpeptidoglycansynthesis.PBP’sareenzymeswhichcatalyzeapentaglycinecrosslinkbetweenalanineandlysineresiduesprovidingadditionalstrengthtothecellwall.Withoutapentaglycinecrosslink,theintegrityofthecellwallisseverelycompromisedandultimatelyleadstocelllysisanddeath.Resistancetoβ-lactamsiscommonlyduetocellscontainingplasmidencodedβ-lactamases.Likemanymembersofthecarbapenemsubgroup,imipenemishighlyresistanttoβ-lactamaseactivity.
2-8°C
2941.90.5000
Imipenemisabroadspectrumantibiotictargetingawiderangeofaerobicandanaerobicgrampositiveandgramnegativebacteria.
Powder
6.5-8.5
Imipenem:Notlessthan400µg/mg
Cilastatin:Notlessthan400µg/mg
Imipenem/Cilastatin:0.95-1.05:1
Notmorethan3.5%