Cy5-PEG6-acid
Cy5-PEG6-acid is a far-red fluorescent dye with excitation and emission maxima at ~649 nm and ~667 nm. It features a six-unit polyethylene glycol (PEG6) spacer and a terminal carboxylic acid group, making it ideal for bioconjugation and labeling applications. The PEG6 spacer enhances water solubility and reduces steric hindrance, ensuring efficient and stable biomolecule labeling in aqueous environments.
Key Features:
- Far-Red Fluorescence: Excitation at ~649 nm, emission at ~667 nm; compatible with 633 nm and 647 nm laser lines
- PEG6 Spacer: Improves solubility and reduces steric interference
- Carboxylic Acid Group: Reacts with primary amines to form stable amide bonds for bioconjugation
Applications:
- Bioconjugation: Labeling proteins, peptides, and other biomolecules for imaging and detection
- Fluorescence Microscopy: Enables high-resolution imaging with bright far-red emission
- Flow Cytometry: Suitable for cell analysis with standard laser compatibility
Handling and Storage:
- Molecular Weight: ~854.5 g/mol
- Purity: ≥96%
- Storage: Store at -20°C, protected from light and moisture
Cy5-PEG6-acid is widely used in fluorescence-based research, offering superior solubility, minimal steric hindrance, and reliable performance in various biological labeling applications.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
