Cyanine5 maleimide

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Cyanine5 maleimide

Cyanine5 maleimide | 1437796-65-0

Catelog Number F02-0009
Category Cyanine5
Molecular Formula C38H45ClN4O3
Molecular Weight 641.24
Catalog Number Size Price Quantity
F02-0009 -- $--

Product Introduction

Cyanine5 maleimide is a mono-reactive dye which selectively couples with thiol groups (for example, with cysteines in peptides and proteins) to give labeled conjugates.Cyanine5 is an analog of Cy5®, a common fluorophore which is compatible with various instrumentation like microscopes, imagers, and fluorescence readers.For the labeling of antibodies and sensitive proteins we recommend to use the water soluble sulfo-Cyanine5 maleimide.

Chemical Information

Related CAS 1437872-46-2 (without anion)
Purity NMR 1H, HPLC-MS (95%)
Solubility soluble in organic solvents (DMF, DMSO, dichloromethane), practically insoluble in water (31 uM, 23 mg/L)
Appearance dark blue powder

Product Specification

ε, L⋅mol-1⋅cm-1 250000
Fluorescence Quantum Yield 0.2
Excitation 646
Emission 662
Storage 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
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