Form
Powder
Appearance
Whiteoralmostwhitepowder,hygroscopic
Source
Semi-synthetic
WaterContent(KarlFisher)
≤2.0%
pH
8.0-10.0
Assay
(anhydrousbasis):845-988µg/mg
Impurities
Dimethylanilline:Meetstherequirements
MethyleneChloride:≤0.2%
Ampicillinsodiumisamemberoftheextendedspectrumβ-lactamfamilyandsimilarinstructuretopenicillin.ResistanceAmpicillinresistanceisduetocellscontainingplasmidencodedESBLs.
TOKU-Eoffersfiveformsofampicillin:
Inaqueoussolution,ampicillinsodiumisfreelysoluble(50mg/mL).Ampicillintrihydrateisslightlysolubleinwater(10mg/mL)andfreelysolublein1NHCl(50mg/mL).Ampicillinanhydrousissparinglysolubleinwaterandfreelysolublein1NNH4OH(50mg/mL).Ampicillinsodiumiscommonlyusedtoselectforsuccessfullytransformedbacteria.Ampicillinanhydrous(powder)isthemoststableandpureformofampicillinTOKU-Eoffers.
69-52-3
C16H18N3NaO4S
371.39
Likeallβ-lactams,ampicillininterfereswithPBP(penicillinbindingprotein)activityotherwiseinvolvedinthefinalphaseofpeptidoglycansynthesis.PBP’sareenzymeswhichcatalyzeapentaglycinecrosslinkbetweenalanineandlysineresidues.Withoutapentaglycinecrosslink,theintegrityofthecellwallisseverelycompromisedultimatelyleADIngtocelllysis.
2-8°C
2941.10.1000
AmpicillinsodiumtargetsnonESBL(ExtendedSpectrumβ-lactamase)bacteriaincluding Staphylococcus and Streptococcusspeciesandmedicallyimportantentericpathogenssuchas Shigella and Salmonella.Interestingly,ampicillinhasbeenfoundtobeeffectiveagainstcertainβ-lactamsensitiveVREorvancomycinresistantEnterococcus;aglycopeptideantibioticresistant"superbug."Resistancetoampicillinisroutinelyutilizedasaselectionantibiotictoconfirmsuccessfulcelltransformation.
Powder
Whiteoralmostwhitepowder,hygroscopic
Semi-synthetic
≤2.0%
8.0-10.0
(anhydrousbasis):845-988µg/mg
Dimethylanilline:Meetstherequirements
MethyleneChloride:≤0.2%