CASNumber56-75-7
LinearFormulaCl2CHCONHCH(CH2OH)CH(OH)C6H4NO2
MolecularWeight323.13
BeilsteinRegistryNumber2225532
ECNumber200-287-4
MDLnumberMFCD00078159
PubChemSubstanceID24892278
Popular Documents: SpecificationSheet(PDF) | FTNMR(PDF)
Properties:
RelatedCategories | A-K,Analytical/Chromatography,Antibacterial,Antibiotics,AntibioticsAtoZ, | ||||||||||||
InChIKey | WIIZWVCIJKGZOK-RKDXNWHRSAQualityLevel | PREMIUM | assay | 97.0-103.0% | form | crystalline | mp | 148-150 °C(lit.) | solubility | H2O:insoluble100%(practically) | suitABIlity | meetsUSPtestingspecifications | Description:ApplicationChloramphenicolisasyntheticantibiotic,isolatedfromstrainsofStreptomycesvenezuelae.ItisoftenusedforbacterialselectioninmolecularBIOLOGyapplicationsat10-20μg/mLandasaselectionagentfortransformedcellscontainingchloramphenicolreistancegenes. Biochem/physiolActionsModeofAction:Chloramphenicolinhibitsbacterialproteinsynthesisbyblockingthepeptidyltransferasestepbybindingtothe50SribosomalsubunitandpreventingattachmentofaminoacyltRNAtotheribosome.Italsoinhibitsmitochondrialandchloroplastproteinsynthesisandribosomalformationof(p)ppGpp,de-pressingrRNAtranscription. CautionStocksolutionsshouldbestoredat2-8°Candarestableat37°Cfor5days.AqueoussolutionsareneutralandstableoverawidepHrange,with50%hydrolysisoccurringafter290days.Useofaboraxbufferedsolutionreducesthisnumberto14%.Solutionsshouldbeprotectedfromlightasphotochemicaldecompositionresultsinayellowingofthesolution.Heatingaqueoussolutionsat115°Cfor30minutesresultsina10%lossofchloramphenicol. Packaging25,100,500ginpolybottle PreparationNoteStocksolutionscanbeprepareddirectlyinthevialatanyrecommendedconcentration.Asolutionat50mg/mLinethanolyieldsaclear,veryfaint,yellowsolution.Degradationofchloramphenicolinaqueoussolutioniscatalyzedbygeneralacidsandbases.ThisrateofdegradationisindependentoftheionicstrengthandpH. Safety:Symbol GHS08 Signalword Warning Hazardstatements H351 Precautionarystatements P280 PersonalProtectiveEquipment Eyeshields,full-faceparticlerespiratortypeN100(US),Gloves,respiratorcartridgetypeN100(US),typeP1(EN143)respiratorfilter,typeP3(EN143)respiratorcartridges RIDADR NONHforallmodesoftransport WGKGermany 3 RTECS AB6825000 品牌介绍
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