800CW NHS ester (IRDye 800CW NHS equivalent) is an amine reactive near-infrared high water-soluble fluorescent dye, it can be labeled to biomolecules directly, such as primary antibody, secondary antibody, peptide, etc.
The conjugates can be used as a probe for Western blot, flow cytometry, immunocytochemical assays, including In-Cell Western assays and On-Cell Western cell-based assays, protein arrays, microscopy, tissue section imaging, in vivo imaging and optical probe development.
800CW dye-conjugated agents and probes are currently propelling more than a dozen Phase I or Phase II clinical trials, more than any other near-infrared fluorescent dye on the market. IRDye a registered trademark of LI-COR.
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[2] Reeing F, et al. A Facile and Reproducible Synthesis of Near-Infrared Fluorescent Conjugates with Small Targeting Molecules for Microbial Infection Imaging. ACS Omega. 2020 Aug 26;5(35):22071-22080. DOI:
10.1021/acsomega.0c02094