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Cytiva Cy™3B Mono-reactive NHS Ester Fluorescent Dyes
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CyDye™ fluors are versatile fluorophores designed for a broad range of applications. CyDye™ fluors produce high sensitivity and highly reproducible performance at a biologically suitable pH range of 3 to 10. The use of multicolor CyDye™ flours enables multiplexing without crosstalk for high accuracy.
Cy™3B NHS Ester provides targeted and specific labeling of amine residues on antibodies, peptides, or oligonucleotides.
- Readily dissolves in and produces a stable signal in aqueous buffers (no need for organic solvents)
- High purity and thorough QC testing generate high levels of chromophore and reactive dye content
- Narrow excitation and emission bands result in discrete signals from each fluor
- Demonstrates larger polarization range than conventional fluors
- Fluorescence lifetime of 2.8 ns
- High fluorescence intensity
- Low non-specific binding

Specifications
Specifications
Formulation | 100% Cy3B (NHS ester) |
Format | Solid |
Quantity | 1 mg |
Product Type | Cy3B NHS Ester |
Molecular Weight (g/mol) | 771 |
Purity | >99% |
Solubility | Soluble in aqueous buffers |
Label or Dye | Mono-Reactive NHS ester |
Color | Red |
Emission | 570 |
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Safety and Handling


- Danger
- Acute toxicity Category 4
- Skin sensitiser Category 1
- Respiratory sensitiser Category 1
- H302 + H312 + H332-Harmful if swallowed, in contact with skin or if inhaled.
- H334-May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- H317-May cause an allergic skin reaction.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
- P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
- P342+P311-If experiencing respiratory symptoms: Call a POISON CENTER/doctor/ .
- P501-Dispose of contents/container to .
- MIXTURE LIST-Contains : cy3B (NHS ester)
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