Sulfo-Cyanine3 Maleimide (Sulfo-Cy3 Maleimide, CAS: 1656990-68-9)
Sulfo-Cyanine3 Maleimide is a water-soluble, thiol-reactive fluorescent dye designed for labeling biomolecules with accessible thiol groups. It is particularly well-suited for labeling sensitive proteins and peptides under mild, aqueous conditions.
Key Features:
- Water Solubility:
- The sulfonated structure ensures excellent solubility in water, eliminating the need for organic solvents during labeling.
- Thiol-Reactive Maleimide Group:
- Selectively reacts with thiol groups in cysteine residues, enabling efficient and stable conjugation.
- Bright Fluorescence:
- Excitation Maximum: ~548 nm
- Emission Maximum: ~563 nm
- Produces strong, high-contrast signals for imaging applications.
Applications:
- Antibody Labeling:
- Conjugates fluorescent tags to antibodies for immunoassays and imaging.
- Protein and Peptide Labeling:
- Labels thiol-containing proteins and peptides for detection and analysis.
- Fluorescence Imaging:
- Visualizes labeled biomolecules in microscopy, flow cytometry, and related techniques.
Sulfo-Cyanine3 Maleimide is a versatile dye for labeling and imaging thiol-containing biomolecules, offering bright fluorescence and excellent water solubility.
A non-sulfonated Cyanine3 maleimide is available.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
