Sulfo-Cyanine5.5dyeisawatersolublefarredtoNIRemittingdyewhichisveryhydrophilicduetothepresenceoffoursulfogroups.Sulfo-Cyanine5.5derivativesexhibithighwatersolubility.Thedyeisaperfectchoiceforthelabelingofsensitiveproteins,nanoparticles,andhighlyhydrophylicbiopolymers.
Thismaleimideisathiolreactivedyethatselectivelylabelscysteineresidues.Disulfidebondsofnativeproteinsshouldbereducedwithanappropriatereducingagent,suchasTCEP,accordingtoourrecommendedprotocol.
Generalproperties
| Appearance: | darkcoloredsolid |
| MassspecM+increment: | 1024.2 |
| Molecularweight: | 1139.43 |
| Molecularformula: | C46H45K3N4O15S4 |
| Solubility: | goodinwater,DMSO,DMF |
| Qualitycontrol: | NMR1H,HPLC-MS(95%) |
| Storageconditions: | Storage:12monthsafterreceivalat-20°Cinthedark.Transportation:atroomtemperatureforupto3weeks.Avoidprolongedexposuretolight.Desiccate. |
Spectralproperties
| Excitationmaximum,nm: | 673 |
| ε,L⋅mol−1⋅cm−1: | 195000 |
| Emissionmaximum,nm: | 691 |
| CF260: | 0.09 |
| CF280: | 0.11 |