The CyDye Cy3 Mono-Reactive Maleimide, 1 mg (PA13131) is a dried Cy3 maleimide dye for labelling biological compounds that contain free thiol groups. It is supplied as a 1 mg reagent pack and is suited to antibody, protein, peptide and modified oligonucleotide labelling where thiol-reactive chemistry is required.
Key Features
- Cy3 maleimide chemistry, provided as a monofunctional maleimide dye for thiol-reactive labelling
- Free thiol group labelling, suitable for biological compounds such as peptides, proteins and oligonucleotides
- Dried, pre-measured format, supplied as a 1 mg reagent pack for preparation before use
- Cy3 optical profile, with absorbance maximum at 550 nm and emission maximum at 570 nm
- High molar extinction coefficient, listed as 150 000 M-1 cm-1 for Cy3
- Recommended refrigerated dark storage, with storage guidance of 2 °C to 8 °C in the dark
- Preparation guidance included, with reconstitution to 1 mg/mL in anhydrous DMF or DMSO
Benefits
- Supports thiol-selective labelling workflows where maleimide chemistry is preferred over amine-reactive approaches.
- Useful for antibody labelling where dye attachment away from the antibody binding site may help preserve functionality.
- The 1 mg format helps reduce the need to subdivide dry dye for small reagent requirements.
- Dried reagent format and refrigerated dark storage guidance support careful handling before use.
- Cy3 fluorescence characteristics support detection using appropriate filter sets and compatible fluorescence workflows.
Why Choose the CyDye Cy3 Mono-Reactive Maleimide, 1 mg (PA13131)?
The CyDye Cy3 Mono-Reactive Maleimide, 1 mg (PA13131) gives Australian laboratories a verified Cy3 maleimide option for thiol-reactive labelling of biological molecules. John Morris Group can help confirm suitability, availability and ordering details for CyDye reagent workflows.
