Form
Powder
Appearance
Whitecrystallinepowder
Source
Semi-synthetic
WaterContent(KarlFisher)
12.0%-15.0%
pH
3.5-6.0
Assay
(OnDriedBasis):900-1050µg/mg
Impurities
Dimethylaniline:Meetsthespecifications
Ampicillintrihydrate,USPisamemberoftheextendedspectrumβ-lactamfamilyandsimilarinstructuretopenicillin.AmpicillinresistanceisfrequentlyduetosecretionofplasmidencodedESBLs.
TOKU-Eoffersfiveformsofampicillin:
Inaqueoussolution,ampicillinsodiumisfreelysoluble(50mg/mL).Ampicillintrihydrateisslightlysolubleinwater(10mg/mL)andfreelysolublein1NHCl(50mg/mL).Ampicillinanhydrousissparinglysolubleinwaterandfreelysolublein1NNH4OH(50mg/mL).Ampicillinsodiumiscommonlyusedtoselectforsuccessfullytransformedbacteria.Ampicillinanhydrous(powder)isthemoststableandpureformofampicillinTOKU-Eoffers.
7177-48-2
C16H19N3O4S·3H2O
403.44
Likeallβ-lactams,ampicillininterfereswithPBP(penicillinbindingprotein)activityotherwiseinvolvedinthefinalphaseofpeptidoglycansynthesis.PBP’sareenzymeswhichcatalyzeapentaglycinecrosslinkbetweenalanineandlysineresidues.Withoutapentaglycinecrosslink,theintegrityofthecellwallisseverelycompromisedultimatelyleADIngtocelllysis.
≤30°C
2941.10.1000
Ampicillin,USPtargetsnon-ESBL(ExtendedSpectrumβ-lactamase)bacteriaincludingStaphylococcusandStreptococcusspeciesandmedicallyimportantentericpathogenssuchasShigellaandSalmonella.Interestingly,ampicillinhasbeenfoundtobeeffectiveagainstcertainβ-lactamsensitiveVREorvancomycinresistantEnterococcus;aglycopeptideantibioticresistant"superbug."ResistancetoampicillinisroutinelyutilizedasaselectableMarkertoconfirmsuccessfulcelltransformation.
Powder
Whitecrystallinepowder
Semi-synthetic
12.0%-15.0%
3.5-6.0
(OnDriedBasis):900-1050µg/mg
Dimethylaniline:Meetsthespecifications