JC-1(5,5′,6,6′-Tetrachloro-1,1′,3,3′-tetraethylbenzimidazolylcarbocyanine,iodide)isamitochondrialdyethatstainsmitochondriainlivingcellsinamembranepotential-dependentfashion.JC-1monomerisinequilibriumwithso-calledJ-aggregates,whicharefavoredathigherdyeconcentrationorhighermitochondrialmembranepotential.ThemonomerJC-1hasgreenfluorescence(λEm=527nm),whiletheJ-aggregateshaveredfluorescence(λEm=590nm).Therefore,itispossIBLetousefluorescenceratioingtechniquetostudymitochondrialmembranepotentials.JC-1isparticularlyusefulforapoptosisstudies.Inapoptoticcells,thedyestaysinthecytoplasmandfluorescesgreen.Ithasalsobeenusedinhighthroughputdrugscreeningapplications.
BiotiumoffersJC-1aseitheriodidesaltorchloridesalt(#70011).Bothformshaveidenticalspectralproperties.Theiodidesaltisthemorecommonlyusedform,howeversomeresearchersmaypreferthechloridesaltbecausechlorideisthemostprevalentanioninBIOLOGicalsystems.
- ε(MeOH)=190,000
- RedsolidsolubleinDMSO
- Storeat4°Candprotectfromlight,especiallyinsolution
- C25H27Cl4IN4
- MW:652
- [47729-63-5]
References
1.PNAS88,3671(1991).
2.Biochemistry30,4480(1991).