Non-activatedcarboxylicacid,ananalogofCy5®freecarboxylicacid.ContainsCyanine5fluorophore.
Thisdyehaslimitedwatersolubility,butcanbedissolvedinmixturesofwaterwithorganicphase(DMF,DMSO,alcohols)toobtainusefulconcentrationsofthematerialinsolution.Water-solubleversionisavailable.
Thismoleculecanbeconsiderednon-reactivedyefortheuseincontrolsamples,andforinstrumentcalibration.Forcouplingwithaminesandproteinlabeling,considerusingCyanine5NHSester,orwater-solublesulfo-Cyanine5NHSester.
Generalproperties
| Appearance: | darkbluepowder | 
| Molecularweight: | 519.12 | 
| Molecularformula: | C32H39ClN2O2 | 
| Solubility: | solubleinorganicsolvents(DMF,DMSO,dichloromethane),insolubleinwater | 
| Qualitycontrol: | NMR1H,HPLC-MS(95%) | 
| Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. | 
Spectralproperties
| Excitationmaximum,nm: | 646 | 
| ε,L⋅mol−1⋅cm−1: | 250000 | 
| Emissionmaximum,nm: | 662 | 
| Fluorescencequantumyield: | 0.2 | 
| CF260: | 0.03 | 
| CF280: | 0.04 |