Appearance
Whitepowder
Source
PseudomonasSp.
PolymyxinB1-IsulfateisoneoftheindividualpolypeptidecomponentsinpolymyxinBsulfate.PolymyxinB1-Icontains,amongotheraminoacids,anL-isoleucineresidueinplaceoftheL-leucineresidefoundintheotherpolymyxinfractions.TheuniquefattyacidgroupfoundinB1-Iis6-methyloctanoicacid(6-MOA),thesamegroupfoundinpolymyxinB1.Resultsfrom invitro studieshaveshownmarginaldifferencesinMICdatawhencomparingthefractions.
Kassamali,etal. used polymyxinB1, polymyxinB2, polymyxin B3,and polymyxin B1-I totestforsynergisticandantagoNISTiceffectsagainstvariousGram-negativeorganisms.
Readmorehere:"MicroBIOLOGicalAssessmentofPolymyxinBComponentsTestedAloneandInCombination"
Limetal. usedpolymyxin B1,B2,B3,andB1-IfromTOKU-EtostudythestABIlityofeachcompoundinsaline,dextrose,andsaline/dextroseinfusionsolutions. "PhysicochemicalstabilitystudyofpolymyxinBinvariousinfusionsolutionsforadministrationtocriticallyIllpatients."
80469-10-9
C56H98N16O13• xH2O4S(lotspecific)
1203.47g/mol(Freebase)
PolymyxinBtargetsandalterspermeabilitylipopolysaccharide(LPS)ofgramnegativebacterialeADIngtolysingofthecell.PolymyxinBonlyneedstointeractwithLPS,itisnotrequiredtoenterthecell.
-20°C
2941.90.1050
PolymyxinBsulfatetargetstheoutermembraneofgramnegativebacteriaespeciallyPseudomonasaeruginosa.
Kassamali,etal.foundpolymyxinB3tobethemostactivepolymyxinfractionagainstmostorganismsintheirexperiment. Kassamali,etal.alsodiscoveredasynergisticeffectusingpolymyxinB3andB1-Iagainsttheirtestedorganisms.
Whitepowder
PseudomonasSp.