The CyDye Cy3B NHS Ester Fluorescent Dye, 1 mg (PA63101) is an Amersham Cy3B mono-reactive NHS ester dye for labelling biological compounds. It is supplied as a 1 mg dried dye format for targeted labelling of amine residues on antibodies, peptides and oligonucleotides. This Cy3B NHS ester dye has an excitation maximum of 559 nm and an emission maximum of 570 nm.
Key Features
- Cy3B mono-reactive NHS ester chemistry, designed for targeted labelling of primary amine groups
- 1 mg dried dye format, matching the listed PA63101 Cy3B NHS Ester variant
- 559 nm excitation maximum, supporting detection with suitable Cy3B fluorescence settings
- 570 nm emission maximum, producing an orange fluorescent Cy3B signal
- High extinction coefficient, listed at 130000 M^-1cm^-1 in methanol
- High quantum yield in methanol, listed as greater than 0.7
- Strong photostability profile, with less than 10% photobleached over 60 seconds
- Minimal pH sensitivity, supporting practical use across compatible labelling conditions
Benefits
- Supports fluorescent labelling of proteins, peptides and oligonucleotides through amine-reactive NHS ester chemistry.
- Provides a defined 1 mg format for users needing the Cy3B NHS Ester variant rather than a sibling CyDye dye.
- Helps laboratories prepare labelled biomolecules for fluorescence-based detection and analysis workflows.
- Offers a highly fluorescent, water-soluble cyanine dye format for compatible biological labelling applications.
Why Choose the CyDye Cy3B NHS Ester Fluorescent Dye, 1 mg (PA63101)?
Choose the CyDye Cy3B NHS Ester Fluorescent Dye, 1 mg (PA63101) when you need a mono-reactive Cy3B NHS ester dye for targeted amine labelling of biological compounds. John Morris Group supplies Cytiva and Amersham fluorescent labelling reagents to Australian laboratories with local ordering support.
