Close this search box.
Our Brands

WST (water-soluble Tetrazolium) was developed by the DOJINDO Laboratories in 1990s and is now used worldwide as one of the methods for cell proliferation assay. The CCK (Cell Counting Kit) and the CCK-8 (Cell Counting Kit-8) with improved sensitivity, which were commercialized using the WST method, are original products for which more than 5,000 papers have been published worldwide. Dojindo Laboratories was founded by Dr. Keihei Ueno, a well-known researcher in chelating chemistry. Dojindo Laboratories was the first Japanese company to commercialize EDTA (ethylenediamine tetraacetic acid) in 1951. Since then, Dojindo Laboratories has been producing reagents to support the progress of scientific research. Dojindo Laboratories’ mission is to develop innovative tools for life science research. Dojindo Laboratories strives to contribute to the improvement of quality of life through scientific findings and the development of new medicines.

Product Classification

Cell Proliferation / Cell Cytotoxicity Assay

  • Cell Proliferation / Cell Cytotoxicity Assay Kits /Related Reagents

Cell Staining

  • Cell Double Staining Kit /Live Cell Staining /Dead Cell Staining /Nuclear Staining /Mitochondria Staining /Tissue Staining /Nucleolus Staining /Lipid Droplet Staining /Cell Membrane Staining /Lysosome Staining

Intracellular Fluorescent Probes

  • Reagents for Intracellular Calucuum Ion /Reagents for Intracellular Ion /Related Reagents

Labeling Chemistry

  • Protein Labeling Kits /Protein Labeling Reagents /HPLC Derivertization Reagents /Biotion Labeling Reagents /Related Reagents /Exsosome Labeling

Oxidative Stress

  • Stress Maker Detection /NO Detection /NO Donor /NO Inhibitor /ACE Inhibition Assay /Reagents・Kits for Sulfur Biology /Antioxidant Assay Kit /Donors for Sulfur Biology

-Bacstain- Series

  • Bacterial Proliferation Assay Kit /Bacteria Staining /Bacterial Fluorescent Staining

 Molecular Biology

  • Transfection Reagents /Nuclear Staining /Agarose /Related Reagents /Buffer for Molecular Biology


  • Detergents /Set


Cross-Linking Reagents

  • Hetero-bifunctional Reagents /Homo-bifunctional Reagents /Others

Redox Dyes

  • Reductive Chromogenic Dyes /Electron Mediators /Oxidative Chromogenic Dyes /Trinder Reagents

Ion Analysis

  • Ionophores /Anion Eliminator /Solvent for Ion Electrode of Liquid Film Type

Organic Scintillator


Metal Chelates

  • EDTA /Other Chelator /Reagents for Chelator Titration

Chromogen/Metal Indicator

Water Analysis

  • /Fluorine /Iron / /Water Hardness /Residual Chlorine /ABS /Cyan / /Chromium /Copper

Extraction Reagent

  • AA Chelator /Related Reagents

High Purity Solvent

  • Spectrozole /Luminazole / /Acnazole /Dehydration Solvent for Synthesis


Functional Organic Material

  • Alkanethiol Derivative /Phosphonic Acid Derivatives