Cy7 NHS Ester (CAS: 1432019-64-1) is a water-soluble, near-IR fluorescent dye with peak excitation at 753 nm and emission at 776 nm in PBS. It is spectrally similar to DyLight® 750, IRDye® 750, and Alexa Fluor® 750, making it ideal for flow cytometry, microscopy, and imaging. The NHS ester reacts efficiently with primary amines, allowing for high labeling ratios without self-quenching, resulting in brighter conjugates. Cy7 conjugates remain stable across a wide pH range, ensuring reliable signals for imaging and flow cytometry.
Key Features:
- Near-IR Fluorescence: Excitation at 753 nm, emission at 776 nm.
- NHS Ester Reactivity: Labels proteins, oligonucleotides, and amine-containing molecules.
- High Labeling Ratios: Achieves bright conjugates with minimal quenching.
- pH Stable: Delivers stable fluorescence across a wide pH range.
Cy7 NHS Ester Applications:
- Protein and Antibody Labeling
- Flow Cytometry
- Microscopy
- In Vivo Imaging
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
