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Innovation deiven by your needs. Superior fluroscent reagents backed by our expert support.
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Fluorescent CF® Dyes

Experience superior, photostable labeling with CF® Dyes—engineered for unmatched brightness, versatility, and performance across 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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Technology Highlight

Fluroscent CF®  Dyes

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We are honored to collaborate with leading organizations dedicated to improving outcomes for cancer patients worldwide.
  • “The Carcinotech team went above and beyond to source and 3D-print the rare cancer model essential for our preclinical study.”
    McRae
    VP of Research, Biotech Organization
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20+

years supplying superior fluorescent reagents

30+

patented technologies, including CF® Dyes

170+

exclusive dyes and labels across the Vis-NIR spectra

23k+

peer-reviewed studies cite our products

20+

years supplying superior fluorescent reagents

30+

patented technologies, including CF® Dyes

170+

exclusive dyes and labels across the Vis-NIR spectra

23k+

peer-reviewed studies cite our products

Product Spotlight

Biotium Unveils A New And Improved Version Of Their Industry-Leading qPCR Dye.
EvaGreen® Plus Dye offers superior signal-to noise over the original EvaGreen® Dye, for higher sensitivity in DNA detection applications.
Biotium Launches First Labeling Kits Optimized for Nanobodies®
New family of Mix-n-Stain™ Labeling Kits offer rapid and efficient labeling of Nanobodies® with CF® dyes.
Biotium Releases AntiFix™ Universal Antigen Retrieval Buffer to Benefit Immunohistochemistry Researchers
The new universal antigen retrieval buffer allows researchers to recover immunostaining targets made unavailable by tissue preservation.
Biotium Debuts Novel Cell Surface Staining Kits for Long-Term Imaging
New CellBrite® Steady Kits offer bright and selective staining of the cell surface for several days in culture.
Biotium Increases Options for Autofluorescence Quenchers with TrueBlack® Plus
TrueBlack® Plus is the first autofluorescence quencher for use in aqueous buffer and expands Biotium’s product line of background reducers.
Biotium Launches New PCR Master Mix Designed for Chip-based Digital PCR Research and Development
N-Flux™ 5X Digital PCR Master Mix is a high-performance, universal probe master mix specially formulated for chip-based digital PCR (cdPCR) platforms.
Biotium Offers New Convenient Flow Cytometry Sampler Kits for Fixable Viability Stains
Live-or-Dye™ Sampler Kits provide cost-effective option for customers analyzing viability while optimizing their own flow cytometry panels.
Biotium Now Offering Anti-DIG and Anti-DNP CF® Dye Antibodies
New conjugates offer optimal fluorescent detection of DNP and DIG tagged nucleotides and proteins.
Biotium Offers a New Live-Cell Mitochondrial Stain Compatible with Downstream Immunofluorescence
Biotium introduces MitoView™ Fix 640, a new fixable mitochondrial stain for long-term live-cell imaging, expanding dye choices for studying cellular function using microscopy and flow cytometry.
Biotium Launches First Ever Mounting Media with Far-Red Nuclear Counterstain and Autofluorescence Quenching Reagent
EverBrite® Mounting Media now offers options with far-red nuclear-specific NucSpot® dyes as well as TrueBlack® Lipofuscin Autofluorescence Quencher.
qPCR Dyes & Master Mixes
Biotium Releases New qPCR Passive Reference Dye that Frees Up the ROX Channel
VeriFluor™ Far-Red Passive Reference Dye offers stable and reliable qPCR normalization using the red or Mustang Purple™ channel.
Biotium Launches Optimized Solution for Exosome Detection by Flow Cytometry
ExoBrite™ EV Membrane Staining Kits for specific and versatile detection of extracellular vesicles by flow cytometry.
Biotium Debuts Novel Fluorescent Dyes that Push Emission Further into the Infrared Spectrum
New CF®850 and CF®870 dyes mark the first commercially available fluorescent dyes with emission beyond 850 nm.
Biotium Expands Multiplexing Options for Probe-based qPCR with Unique Red qPCR Dye
EvaRuby™ Dye offers minimal crosstalk in neighboring channels and is suitable for probe-based qPCR with HRM® analysis in the same reaction.
Biotium Introduces Unique Super-Sensitive RNA Prestain Loading Dye
EMBER500™ RNA Prestain Loading Dye allows single-step denaturing, loading, and bright RNA staining on regular agarose gels.
New Study Describes Novel Chemical Modifications to Fluorescent Dyes for Improved Super-Resolution Imaging by STORM
The UC Berkeley study, published in collaboration with Biotium, offers a breakthrough chemical strategy for designing new fluorescent dyes optimized for STORM super-resolution microscopy.
Biotium Announces Optimized Antibody Labeling Kits for STORM Super-Resolution Microscopy
New Mix-n-Stain™ Antibody Labeling Kits offer an optimal low degree of labeling with your choice of Biotium’s superior CF® Dyes for STORM.
Biotium Announces Acquisition of CAT5™ FFPE RNA/DNA Extraction Technology from Cell Data Sciences
RNAstorm™ and DNAstorm™ RNA/DNA extraction kits will be sold exclusively through the Biotium website and authorized distributors.
Biotium Introduces New Line of Antibodies for Exosome Detection
ExoBrite™ Antibody Conjugates are validated and optimized for bright and specific detection of exosome markers CD9, CD63, and CD81 by flow cytometry and western blotting.
Biotium’s New Laser Diode Gel Illuminator Offers a Superior Alternative to LED and UV-based Illumination
The Gel-Bright™ Laser Diode Gel Illuminator is more sensitive than blue LED illuminators for red dyes, without UV hazards.
Biotium Applauds a Local Middle School’s First-Place Win at the 2023 California Science and Engineering Fair
Biotium congratulates Ruhani Singh, Jiya Kohar, and Prisha Patel on their First-Place Grand Award in the Biochemistry/Molecular Biology Category.
Biotium Introduces Novel Antibody Labeling Kits for Rapid and Efficient Labeling of IgM Antibodies
Mix-n-Stain™ CF® Dye IgM Antibody Labeling Kits address longstanding challenges for labeling IgM antibodies by offering efficient and convenient conjugation with bright CF® Dyes.
Biotium Introduces New Highly-Selective Stains For Both Gram-Positive and Gram-Negative Bacteria
New BactoView™ Dead Stains and BactoView™ Viability Kits help simplify and improve highly selective dead cell staining.
Biotium Launches New Line of Extensively Validated Primary Antibody Conjugates for Flow Cytometry
Biotium Choice primary antibody conjugates are carefully curated and validated to offer robust results.
Biotium Expands Selection of Novel Nuclear Stains for Enhanced Multiplexing Flexibility for Microscopy and Flow Cytometry Applications
Greater selection of NucSpot® Nuclear Stains promotes further precision, efficiency, and reliability in cell imaging with selective nuclear targeting and exceptional photostability.
Biotium Launches Novel Membrane Dyes Designed for Superior Pan-EV Labeling Over PKH and Other Membrane Dyes
New ExoBrite™ True EV Membrane Stains offer strong signal and near-complete staining of extracellular vesicles.
Biotium Releases New High-Performance Magnetic Bead-Based FFPE DNA and RNA Extraction Kits Well-Suited for Automated Processes
CELLDATA DNAstorm™ and RNAstorm™ 2.0 MagBead FFPE Kits for DNA and RNA extraction allow for greater streamlined automation.
Biotium Launches Robust Novel Membrane Dyes for Formaldehyde-Fixed Cells
New CytoLiner™ Fixed Cell Membrane Stains allow for reliable and consistent staining of formaldehyde-fixed cells.
Biotium Launches Precast GelRed® Agarose Gels for More Convenient and Safer DNA Electrophoresis
Obtain reliable DNA electrophoresis results faster with new ready-to-use precast gels with Biotium’s GelRed®, a safer and more sensitive alternative to traditional ethidium bromide.
Biotium Unveils the Most Sensitive Stains for DNA or RNA with New EMBER™ Ultra Agarose Gel Kits
New EMBER™ Ultra RNA and DNA Gel Kits provide the most sensitive nucleic acid gel staining available, with time-saving convenience.
Biotium Upgrades Illuminator for Uniform Photoactivation of Viability PCR Samples in Microplates
Biotium’s Glo-Plate™ 2.0 Blue LED Illuminator provides uniform photoactivation for samples in microplates with enhanced user-friendly convenience and versatility.
Biotium Expands Glycan Detection Portfolio with New CF® Dye Lectin Conjugates
Biotium proudly launches five new sets of CF® Dye Lectin Conjugates with unparalleled sensitivity and reliability in glycan detection.
Biotium Unveils New Assay Kit with Exceptional RNase Detection Sensitivity
Discover Biotium’s new RNaseReveal™ Activity Assay Kit—ultrasensitive RNase detection with a fast, easy protocol to streamline your workflow.
Biotium Launches New Phalloidin Conjugates with Extended F-actin Staining Stability for Greater Imaging Flexibility
Long-lasting, bright F-actin staining made easy with Biotium's new ActinBrite™ High Affinity Phalloidin Conjugates.
Biotium Expands Cheetah™ Taq Portfolio with New Formulations for Fast Cycling PCR and Proximity Extension Assays
Introducing Cheetah™ FLEX and Cheetah™ PEA-PLEX HotStart Taq DNA Polymerases for qPCR, PEA, and NGS-Based PEA Workflows
Biotium Launches Highly Sensitive, Convenient, and Affordable Luminescent Viability Assay for HTS
New Steady-ATP™ HTS Viability Assay Kit offers exceptional sensitivity for measuring cell viability in a convenient single-step assay mix.
Biotium Launches New Antibody Cocktails for Streamlined EV Phenotyping or High-Coverage EV Staining
New ExoBrite™ Antibody Cocktails target the most widely used EV markers with greater flexibility and seamless integration.
Biotium Introduces More Affordable and User-Friendly DNA Gel Analysis Ideal for Educational Labs
Biotium congratulates Ruhani Singh, Jiya Kohar, and Prisha Patel on their First-Place Grand Award in the Biochemistry/Molecular Biology Category.
Biotium’s New MiniMab™ Single-Domain Antibody Series Provides Super-Resolution Imaging Options for Neuroscience Research
Biotium’s New SYT1, VGLUT1, and GFAP Recombinant Alpaca SdAb conjugates offer exceptional performance for STORM imaging with CF® Dyes Fremont, CA — July 7, 2025 — Biotium, a leading innovator in life science reagents, is proud to support the advancement of super-resolution imaging with the release of their MiniMab™ single-domain antibody (SdAb) series. The MiniMab™ SdAb series, […]
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Safe and Sustainable Solutions

Cutting-edge technology meets sustainability. See how we design with you in mind, developing reagents for safer use and disposal.

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Pioneers of Change
We’re fearlessly innovating to reshape our industry.
Precision at Every Step
We’re committed to excellence through accuracy, quality, and detail.
The Power of Partnership
We believe collaboration and trust are essential for success.

Powerful Proprietary Technologies

Get solutions you won’t find anywhere else with 30+ patented technologies designed for unmatched performance, sensitivity, and stability—giving your portfolio a competitive edge.

Tailored Fluorescent Solutions

Choose tools that integrate seamlessly into your product line and meet your customers’ needs. Whether generic, proprietary, or bespoke, our solutions—including Custom Conjugation Services—work for you.

Quality You Can Trust

Ensure reliability at scale with highly validated fluorescent tools. Produced in our ISO 9001:2015-certified facility, they deliver reproducible performance across experiments, users, and projects.

Expert Support at Every Step

Work directly with our in-house R&D scientists to develop, optimize, and integrate fluorescent tools into your portfolio. Our agile team provides expert guidance with a personal, highly responsive approach.

Powerful Proprietary Technologies

Get solutions you won’t find anywhere else with 30+ patented technologies designed for unmatched performance, sensitivity, and stability—giving your portfolio a competitive edge.

Tailored Fluorescent Solutions

Choose tools that integrate seamlessly into your product line and meet your customers’ needs. Whether generic, proprietary, or bespoke, our solutions—including Custom Conjugation Services—work for you.

Quality You Can Trust

Ensure reliability at scale with highly validated fluorescent tools. Produced in our ISO 9001:2015-certified facility, they deliver reproducible performance across experiments, users, and projects.

Expert Support at Every Step

Work directly with our in-house R&D scientists to develop, optimize, and integrate fluorescent tools into your portfolio. Our agile team provides expert guidance with a personal, highly responsive approach.
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