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Ion Indicators

Enable high-sensitivity detection and quantitation with fluorescent ion indicators for calcium and more. Choose from probes with varying dissociation constants (Kd), membrane permeability, and ratiometric or non-ratiometric options to find the perfect fit for your biological system and instrument. With a wide range of wavelengths, multiplex with other probes for seamless experimental integration.

Calcium Indicators & Chelators

Monitor calcium concentrations with high-sensitivity ion indicators, including cell-permeant AM esters for live-cell imaging, available in a wide range of bright colors.

Chloride, pH, Zinc & Other Indicators

Detect and quantify chloride, zinc, and more with specific ion indicators—available in membrane-impermeant salt and -permeant AM ester forms to support diverse assay formats.

Product Spotlight

Technology Highlight

Ion Insights: Detect & Discover

Reveal cellular ion dynamics with advanced fluorescent ion indicators—versatile tools for diverse biological systems, instruments, and applications.

  • Over 40 CF® Dyes across the visible, far-red & near-IR spectra—find your best fit
  • Developed in-house by industry-leading chemists, CF® Dyes outshine alternatives
  • Available as antibodies, conjugates, reactive dyes, and easy-to-use labeling kits
  • Supporting IF and super-resolution microscopy, flow cytometry, and more

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