Support & Resources


Featured Technology

Discover enhanced sensitivity, lower background, and deeper tissue penetration with Biotium's industry-leading Near-IR CF® Dyes. Options now available with ~900 nm emission, beyond any commercially available near-infrared probe.

Learn more
Innovative dyes for science. Expert solutions for scientists.

Product catalog

Technology Highlight: Mix-n-Stain™ CF® Dye Antibody Labeling Kits

Immunofluorescence staining of rat testis with mouse anti-tubulin and CF®488A goat anti-mouse (min x rat) (microtubules, green), CF®555 Mix-n-Stain™ labeled mouse anti-ZO1 (tight junctions, red) and CF®640R phalloidin (actin filaments, cyan).

Bright and stable conjugates in 30 minutes

Mix-n-Stain™ CF® Dye Antibody Labeling Kits allow you to label ≤5 ug up to 100 ug of your antibody in just 30 minutes, with minimal hands-on time and no purification.


  • Kit sizes for labeling ≤5 -100 ug antibody
  • Maxi size for labeling 1 mg of IgG also available
  • Choice of 29 CF® Dye colors, biotin, FITC, or haptens
  • Less than 30 seconds of hands-on time
  • 30 minutes total reaction time
  • No purification required, 100% antibody recovery
  • Compatible with BSA, gelatin, ascites