Protonex(TM) Red 600-Dextran Conjugate *10,000 MW for Endocytosis*

Protonex(TM) Red 600-Dextran Conjugate 10,000 MW for Endocytosis is a pH-sensitive red fluorescent dextran dye designed for real-time, wash-free imaging of endocytosis, phagocytosis, and lysosomal acidification in live-cell assays. Nonfluorescent at neutral pH, it emits a bright red fluorescent signal upon internalization into acidic compartments (e.g., endosomes and lysosomes), eliminating the need for secondary quencher dyes or disruptive wash steps. Its Texas Red(R)-compatible spectral profile ensures seamless integration into existing fluorescence imaging platforms, including widefield and confocal microscopy, flow cytometry, and automated plate readers. Its spectral characteristics permit multiplexing with green (e.g., FITC, GFP) and far-red fluorophores, supporting multi-channel analysis in complex assay formats. Designed to streamline workflows, Protonex(TM) Red 600-Dextran accelerates high-throughput screening (HTS) and high-content analysis (HCA) by delivering strong signal-to-background ratios while maintaining excellent cell viability. It is particularly well suited for applications such as antibody-dependent cellular phagocytosis (ADCP) assays in immuno-oncology, monitoring of autophagic flux, and tracing of neuronal or vascular structures. The consistent performance and minimal protocol requirements of Protonex(TM) Red 600-Dextran not only reduce variability and experimental complexity but facilitate reliable quantification of endocytic uptake, phagosome maturation, and intracellular trafficking dynamics in live-cell systems.