Awatersoluble,hydrophilicsulfo-Cyanine5maleimide(Cy5®maleimideanalog).Werecommendthisproductforproteinlabeling,includinglabelingofantibodiesasaperfectreplacementforCy5®maleimide.Labeledproteinscanbeeasilyseparatedfromunreacteddyebygelfiltration,spincolumnpurification,dialysis,electrophoresisorchromatography.
Ananalogwithoutsulfogroups,Cyanine5maleimide,isalsoavailable.
Generalproperties
Appearance: | darkbluepowder |
Molecularweight: | 803.00 |
Molecularformula: | C38H43KN4O9S2 |
Solubility: | solubleinwater,DMSO,DMF |
Qualitycontrol: | NMR1H,HPLC-MS(95+%) |
Storageconditions: | Storage:24monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. |
Spectralproperties
Excitationmaximum,nm: | 646 |
ε,L⋅mol−1⋅cm−1: | 271000 |
Emissionmaximum,nm: | 662 |
Fluorescencequantumyield: | 0.28 |
CF260: | 0.04 |
CF280: | 0.04 |