Phenylethynylpyrene(PEP)fluorophoreisapolyaromatichydrocarbonlabelwithhighsensitivitytomicroenvironment.Similarlytopyrene,PEPdyereADIlyformsexcimers.However,PEPfluorescenceismorered-shifted
PEPcanbeusedasmicroenvironmentprobe,andasalabelforassaysbasedonexcimerformation.
Thisreagentcontainstriethyleneglycollinkertofacilitatedissolutionofnon-polarPEPdyeinorgano-aqueouslabelingreactionmixtures.Withthisazide,andClickchemistry,itiseasytoturnanymoleculebearingalkyneintoPEP-labeledprobe.
Generalproperties
| Appearance: | offwhite/yellowishsolid | 
| Molecularweight: | 544.64 | 
| Molecularformula: | C34H32N4O3 | 
| Solubility: | solubleindichloromethane,chloroform,moderatelysolubleinDMSO,DMF,acetonitrile | 
| Qualitycontrol: | NMR1H(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight. | 
Spectralproperties
| Excitationmaximum,nm: | 293;362;384 | 
| Emissionmaximum,nm: | 389 |